2013年8月26日 星期一

Are solar manufacturers

For the past four years, the Silicon Valley Toxics Coalition has been rating the solar energy industry — the manufacturers of solar panels — on their environmental performance and transparency. The latest results, just out, don’t reveal a particularly pretty picture. But they don’t tell the whole story.

The SVTC Solar Scorecard ranks manufacturers of solar photovoltaic modules according to a range of environmental, sustainability and social justice factors. In its fourth year of requesting environmental information from solar companies, only 10 out of 40 companies — about 35 percent of the PV module market share — bothered to respond to its survey. More than a fourth of the top 40 solar companies fail to make “almost any” environmental information publically available on their websites,A solar bulb that charges up during the day and lights the night when the sun sets. says SVTC.

“There are a couple or key environmental leaders in the solar industry, but the remainder of the field is kind of riding on their coattails,” Sheila Davis, SVTC’s executive director, told me.

But is the industry really that bad? On the one hand, there’s no question that manufacturing polysilicon solar cells — the kind used in most panels — is a dirty business.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products. On the other, the industry is quietly getting its act together — before regulators and activists force them to do so.

The PV cell manufacturing process includes a number of hazardous materials, most of which are used to clean and purify the semiconductor surface, notes the Union of Concerned Scientists. “These chemicals, similar to those used in the general semiconductor industry, include hydrochloric acid, sulfuric acid, nitric acid, hydrogen fluoride, 1,1,1-trichloroethane, and acetone.Shop funtional and elegant solar lights, outdoor solar lighting, solar garden lights, path lights and decorative solar lights.” The group notes that “Workers also face risks associated with inhaling silicon dust. Thus, PV manufactures must follow U.S. laws to ensure that workers are not harmed by exposure to these chemicals and that manufacturing waste products are disposed of properly.”

The United States and European Union have strict restrictions on use of such chemicals. But some solar panels use materials produced in countries with lax environmental laws, notably China, and that can lead to the same kinds of environmental and social problems that have bedeviled the consumer electronics industry.

There’s more. In many cases, a toxic sludge is created when metals and other toxins are removed from water used in the manufacturing process. If a company doesn’t have its own treatment equipment, it will need to send contaminated water to an approved hazardous waste disposal site.Thank you for providing us with information to help us maintain street light. Again,How does a solar charger work and where would you use a solar charger? worker health and safety is an issue.

And then there’s e-waste — the detritus created when solar panels outlive their useful lives. While the good news is that most panels are rated to last 20 years or more, activists fear that without good EPR programs in place, we’ll be facing an avalanche of used panels, with all their toxic ingredients, in a little more than a decade. With solar sales continuing their steep increase, that could lead to huge disposal problems by mid-century.

But there are signs the industry is turning itself around. Last year, the Solar Energy Industries Association, the sector’s largest trade group, released a Commitment to Environmental & Social Responsibility, a voluntary code of conducts for its members. The code, based on the Electronic Industry Citizenship Coalition's Code of Conduct, includes provisions regarding the environment, labor, ethics, health and safety, human rights and environmental management systems. SEIA worked with the nonprofits BSR and As You Sow in developing the code. Among other things, signatories agree to transparency, reporting and continuous improvement.

So far, seven companies have signed on: Dow Solar, SunPower, Suntech, Trina, Yingli Solar, SunEdison and PV Recycling. According to John Smirnow, SEIA’s Vice President of Trade & Competitiveness, those signatories represent more than half of the solar panels sold in the United States, though 86 percent of global solar module production occurred in Asia last year, according to GTM Research.

Smirnow notes that getting solar companies to pay attention to environmental issues can be challenging these days, given the business challenges faced by the industry. Module prices have dropped 80 percent in the last six years, putting operating margins for most manufacturers in the red. Earlier this year, Suntech, once the world’s largest solar panel manufacturer, filed for bankruptcy, though indications are that it is down but not out. There’s an excess of module manufacturing capacity today, and experts predict more consolidation is on the way. (SVTC estimated that the 14 percent drop in responses to its survey was due to the bankruptcy of former participants “and the declining market shares of major PV producers.”)

In this context, the solar industry “is actually doing pretty well on sustainability,” Smirnow told me, quickly adding, “We need to do better.” Signatories to the Solar Commitment currently are putting together responses to the first set of key performance indicators, which they will report publically later this year or early next, he says.

There are other SEIA initiatives taking shape. One focuses on recycling. “We’re looking at what the European Union has done, what some of the older more established sectors have done on recycling and developing what we think should be a roadmap for the solar industry within the U.S.,” says Smirnow. Moreover, he says, “Next year, we’ll see the key performance indicator list grow” as the association adds more criteria to the code of conduct. In addition, SEIA is undergoing a recruitment drive for the code of conduct. “I anticipate in the next few weeks you’ll see at least one fairly significant solar company sign on.”

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What the internet of things means

Declining chipset costs, improving data analytics, and ubiquitous broadband are driving the onslaught of connected devices. Taken together we’re entering the brave new world of the internet of things (IoT), where significant venture capital will flow toward business models that figure out a way to connect a device, mine its data, and provide valuable services to businesses and consumers.

What does this trend mean for cleantech? The ability to connect “things” will result in the possibility of automating decision making in a broad endeavor to drive efficiencies in areas ranging from lighting to home appliances to the smart grid. Almost all of these business models will be broad efficiency plays and carry the advantage of having much less technology risk than other cleantech sectors like next-generation batteries or solar.

Key findings from the report include:


No single company dominates home energy management, and many players, from utilities to broadband providers, are becoming increasingly important partners in the ecosystem. There is tension in the market among those companies offering a single point solution like Nest and those attempting to fully connect the home under one automation system.

Efficient and connected lighting is coming, particularly in the commercial and industrial space. LEDs are expensive, but lighting-as-a-service models could make them more attractive to customers.

The smart grid epitomizes the data services theme, connecting energy users’ data to the network with smart metering. Look for two-way communication, decentralized power generation, and a much more controllable and flexible demand side of the grid to change how energy is distributed and consumed.

Environmental sensors will become increasingly widespread as they are made more compact and function on less power. Startups with simple, elegant, and creative solutions to producing value from that sensor data will find customers.

To Christ Episcopal Church in the City of Poughkeepsie, which on Aug. 17 hosted “Christmas in August” for children getting ready to go back to school.

The event, which is in its seventh year, provided 2,000 local children with free backpacks filled with much-needed school supplies. This year’s program distributed about $15,000 in goods.

The event also included free food, face painting and music, and was coordinated by the Freedom Plains United Presbyterian Church and sponsored by local businesses.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products.

Dianne Phillip of the City of Poughkeepsie said she appreciated the help because, “They’re giving you more than just a bag, they’re actually involving the community.”

Kudos to all those involved in making this year’s Christmas in August such a success!

To the Beacon Elks lodge, which donated more than $2,000 worth of food to the Beacon branch of Dutchess County Community Action Agency’s Food Pantry. The donation was funded by a Gratitude Grant, awarded through the Elks National Foundation.

Mangalore, Aug 26:

Aristaa Enclave, an apartment project of the Mangalore-based Allegro Builders and Developers, has been awarded a ‘Mangalore-5 Star’ rating by Crisil Real Estate Star Ratings (Crest).

Quoting D.B.How does a solar charger work and where would you use a solar charger? Mehta, Chairman of Allegro Ventures India Pvt Ltd, a press release said here that Crisil carried out an exercise by visiting the project site, builder, architects, structural engineers, legal consultants, contractors, and officers to collect all the technical details about the project.A solar bulb that charges up during the day and lights the night when the sun sets.

“For any prospective customer a 5-star rating by Crisil ensures the project quality and the builder’s capacity to deliver as a mark of approval,” he said.

Star ratings is based on an eight-point scale from ‘City 7-Star’, the highest, to ‘City 1-Star’, the lowest being ‘non-deliverable’ project. This rating is assigned on the basis of five key parameters, on which the project is evaluated.Shop funtional and elegant solar lights, outdoor solar lighting, solar garden lights, path lights and decorative solar lights.

The parameters are: sponsor quality, legal documentation, financial quality, construction quality, and innovation.

Aristaa Enclave has 84 apartments at Pandeshwar area in the city. The release said that the project incorporates features for rainwater harvesting, common solar lighting and solar water heating, among others.

Launched in 2010 by Crisil, Crest conducts third-party property ratings. Currently Crest covers over 220 projects in 40 cities, the release added. Thank you for providing us with information to help us maintain street light.

Click on their website www.soli-lite.com for more information.

Solar paint paves the way

Using quantum dotThank you for providing us with information to help us maintain street light.s as the basis for solar cells is not a new idea, but attempts to make such devices have not yet achieved sufficiently high efficiency in converting sunlight to power. The latest advances in quantum dots photovoltaics have recently resulted in solar cell power conversion efficiencies exceeding 7% (see for instance: "Graded Doping for Enhanced Colloidal Quantum Dot Photovoltaics"). Although these performance levels are promising, all high-performing device results to date have relied on a multiple-layer-by-layer strategy for film fabrication rather than employing a single-layer deposition process.

The attractiveness of using quantum dots for making solar cells lies in several advantages over other approaches: They can be manufactured in an energy-saving room-temperature process; they can be made from abundant, inexpensive materials that do not require extensive purification, as silicon does; and they can be applied to a variety of inexpensive and even flexible substrate materials, such as lightweight plastics.

In new work,A solar bulb that charges up during the day and lights the night when the sun sets. reported in the August 12, 2013 online edition of Advanced Materials ("Directly Deposited Quantum Dot Solids Using a Colloidally Stable Nanoparticle Ink"), a research team from the University of Toronto and King Abdullah University of Science and Technology (KAUST) developed a semiconductor ink with the goal of enabling the coating of large areas of solar cell substrates in a single deposition step and thereby eliminating tens of deposition steps necessary with the previous layer-by-layer method.

"We sought an approach that would achieve highly efficient utilization of CQD materials," says Professor Ted Sargent from the University of Toronto, who, together with Osman Bakr,How does a solar charger work and where would you use a solar charger? an assistant professor in the Solar & Photovoltaics Engineering Research Center at KAUST, led the work. "To achieve this, we made a solar cell ink that can be deposited in a single step which makes it an excellent material for high-throughput commercial fabrication."

The team's 'solar paint' is composed of semiconductor nanoparticles synthesized in solution – so-called colloidal quantum dots (CQDs). They can be used to harvest electricity from the entire solar spectrum because their energy levels can be tuned by simply changing the size of the particle.
Previously, films made from these nanoparticles were built up in a layer-by-layer fashion where each of the thin CQD film deposition steps is followed by curing and washing steps to densify the film and form the final semiconducting material. These additional steps are required to exchange the long ligands that keep the CQDs stable in solution for short ligands that allow efficient charge transport. However, this means that many steps are required to build a thick enough film to absorb enough sunlight.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products.

"We simplified this process by engineering the CQD surfaces with short organic molecules in the solution phase to enable a stable colloidal solution and reduce the film formation to a single step," Bakr explains to Nanowerk. "At the same time, the post processing steps are reduced significantly, since the semiconducting material is formed in solution. This means that CQD films can be deposited quickly and at low cost, similar to a paint or ink."

Besides the reduction in processing steps, the new process is also much more efficient in terms of materials usage. While the layer-by-layer, solid-state treatment approach provides less than 0.1% yield in its application of CQD materials from their solution phase onto the substrate, the new approach achieves almost 100% use of available CQDs.Shop funtional and elegant solar lights, outdoor solar lighting, solar garden lights, path lights and decorative solar lights.

"This means that for the same amount of CQD material, we could make a thousand-fold larger area of solar cells compared with conventional methods," Bakr points out. "Our technology paves the way for low-cost photovoltaics that can be fabricated on flexible substrates using roll-to-roll manufacturing, similar to a printing press," adds Lisa Rollny, a PhD candidate in Sarget's group and a co-author of the paper. "Our ink is also useful in biological applications, e.g. in biosensors and tracing agents with an infrared response."

"In previous work, we found new routes of passivating the CQD surface using a combination of organic and inorganic compounds in a solid state approach with large improvements in efficiency," says Rollny. "We intend to integrate this knowledge with our solar CQD ink to further improve the performance of this material, especially in terms of how much solar energy is converted into usable electrical energy."

Read the full story at www.streetlights-solar.com!

Solar street light campaign kicks off

Fosera Lighting, a spin-off company from SiHow does a solar charger work and where would you use a solar charger?ngapore's Solar Energy Research Institute (SERIS), began a crowdfunding campaign earlier this month to use solar energy to bring street lights to three villages in the Kimpong Chhanang Province of Cambodia. The campaign hopes to raise $33,500 for the lights and there are 12 days remaining to make contributions.Shop funtional and elegant solar lights, outdoor solar lighting, solar garden lights, path lights and decorative solar lights.

Fosera has developed an integrated solar powered street and community light, called the Commlight.

Commlight utilizes solar cells in combination with lithium iron phosphate batteries, LED technology and an energy management system. Fosera Lighting claims that this makes Commlight a "long lasting … low cost" solution.Thank you for providing us with information to help us maintain street light. The company began operations this month.

Fosera hopes to raise $33,500 for its campaign, yet as of the writing of this report, it had only raised around $4,500 over the indiegogo crowdfunding platform. Even if the project does not reach its funding goal, it will still receive all the funds pledged.

The crowdfunded project hopes to provide lighting for the villages Kraing Learve, Toek Laak and Trapaing Kravann. "The street lights will be placed around the areas of the village wells, schools, healthcare centers, temples and cross roads to promote safety and security after sunset," said Robert Haendel, Founder and CEO of Fosera Lighting, in a statement announcing the campaign.

In the release, Keo Phonn, a local farmer, said that the street lights will help with avoiding attacks from poisonous animals,Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products. reduce the risk of rape and prevent motor accidents.

Crowdfunding is becoming more common within solar, particularly within the offgrid space. The U.S.-based Sierra Club worked with SunFunder to raise $15,000 to provide ReadySet Solar Kits for mobile phone charging and lighting for households in Uganda. SunFunder alone has raised $120,000 for eight projects. It claims that all the projects will provide electricity solutions to around 40,000 people.

In a post on the greentechmedia website, the Sierra Club's Justin Guay wrote that crowdfunders can fill the financing gap in providing offgrid solutions and solar arrays for communities that may struggle with traditional lenders. Guay also argued that small crowdfunders are far more effective in providing electricity solutions than traditional institutions like the World Bank.

"It's clear that crowdfunding-specific products are needed. These could be funds that match money raised from the crowd, or loan guarantees that can help unleash capital for local entrepreneurs," wrote Guay. "This marries the nimble ability of crowdfunders to support small-scale projects with the larger pools of capital the development institutions can tap into without forcing them to engage in small scale-projects directly."

Outside of the offgrid space, California's Solar Mosaic has been effective in providing crowdfunded finance for solar installations. At the Intersolar Trade Show earlier this year, in San Francisco, pv magazine learned that for the first time Solar Mosaic is now offering variable returns to investers into some photovoltaic arrays – truly an industry first.A solar bulb that charges up during the day and lights the night when the sun sets. In his greentechmedia piece today, Guay also notes that Milaap and Abundance Generation are both turning to the crowd to fund renewable development.

Click on their website www.soli-lite.com for more information.

2013年8月21日 星期三

Graphene Could Replace Platinum

One of the most promising types of solar cells has a few drawbacks. A scientist at Michigan Technological Univ. may have overcome one of them.

Dye-sensitized solar cells are thin, flexible, easy to make and very good at turning sunshine into electricity. However, a key ingredient is one of the most expensive metals on the planet: platinum. While only small amounts are needed, at $1,500 an ounce, the cost of the silvery metal is still significant.

Yun Hu, the Charles and Caroll McArthur Professor of Materials Science and Engineering, has developed a new, inexpensive material that could replace the platinum in solar cells without degrading their efficiency: 3D graphene.

Regular graphene is a famously two-dimensional form of carbon just a molecule or so thick. Hu and his team invented a novel approach to synthesize a unique 3D version with a honeycomb-like structure. To do so, they combined lithium oxide with carbon monoxide in a chemical reaction that forms lithium carbonate (Li2CO3) and the honeycomb graphene. The Li2CO3 helps shape the graphene sheets and isolates them from each other, preventing the formation of garden-variety graphite. Furthermore, the Li2CO3 particles can be easily removed from 3D honeycomb-structured graphene by an acid.

The researchers determined that the 3D honeycomb graphene had excellent conductivity and high catalytic activity, raising the possibility that it could be used for energy storage and conversion. So they replaced the platinum counter electrode in a dye-sensitized solar cell with one made of the 3D honeycomb graphene. Then they put the solar cell in the sunshine and measured its output.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products.

The cell with the 3D graphene counter electrode converted 7.8 percent of the sun’s energy into electricity,A solar bulb that charges up during the day and lights the night when the sun sets. nearly as much as the conventional solar cell using costly platinum (eight percent).

Synthesizing the 3D honeycomb graphene is neither expensive nor difficult, says Hu, and making it into a counter electrode posed no special challenges.Shop funtional and elegant solar lights, outdoor solar lighting, solar garden lights, path lights and decorative solar lights.

Solar leasing has been such a successful model for rapidly expanding solar installations in the US that it's being adopted across renewable energy technologies - geothermal, fuel cells and now,How does a solar charger work and where would you use a solar charger? small wind.

In all of these situations, upfront costs are the biggest barrier and as most of you know by now, being able to lease a system removes those costs. It also takes the risk out of owning and operating the systems.

United Wind is introducing WindLeaseTM for wind turbines 10 kilowatts (kW) and higher - targeting larger residential customers, schools, commercial, small industrial, and agricultural land owners.

Installed in 2010, two 6 kW wind turbines produce more than half the electricity for North Kohala Public Library in Hawaii.

United Wind is entering this market by merging its most important elements - distribution and the ability to evaluate how well wind will perform on sites.

Two companies merged to form United Wind. Talco is a small wind distributor in the US with a network of about 100 dealers and 150 installations, and Wind Analytics developed software for small wind projects that quickly, accurately and remotely analyzes the wind potential of a site and its associated financial benefits. You can get an estimate right on the website.

As in solar leasing, when a customer leases a small wind system, the company handles everything from getting a permit to financing and installing the turbines. The customer simply signs a long-term lease and gets a guaranteed electricity price for the duration of the contract.

Small wind systems are finding a strong niche and Home Depot even sells them in windier parts of the country. Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions.

Click on their website www.streetlights-solar.com for more information.

Kaco Completes Smart Module

Kaco new energy, a specialist in solar inverter manufacturing, validates and approves of the new technology from Tigo Energy that enables smart modules to achieve 30% longer string lengths.

The nine month, in-depth test successfully validated claims that Smart Modules with this technology could regulate the maximum voltage output of a solar panel under any number of conditions thus allowing 30% longer strings and enhanced inverter functionality.

The patented technology from Tigo energy, called “Smart Curve”,regulates the maximum voltage output of a solar panel.Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. A typical 60-cell polycrystalline module, for example, could be programmed to a max voltage of 32V as compared to 38V for a traditional module.

The maximum voltage does not change with temperature.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products. This enables modules to be designed with 30% longer strings than traditional modules while still remaining within IEC and NEC requirements. This represents about 5 cents per watt of BOS (Balance of system) savings, according to Kaco,Shop funtional and elegant solar lights, outdoor solar lighting, solar garden lights, path lights and decorative solar lights. from fewer combiner boxes, fuses, and fewer home runs.

Kaco new energy recently launched their three-phase,A solar bulb that charges up during the day and lights the night when the sun sets. transformerless inverter solution optimized for use with smart modules using Tigo Energy’s patented Smart Curve technology.

Available today, blueplanet 50.0 TL3 inverters optimized for Smart Modules offer a best-in-class solution to commercial installations.The Kaco new energy inverter design offers the highest power density in this product class, Kaco reports. This transformerless inverter is highly efficient at 97.5% and very lightweight, contributing only 7.6 pounds per kilowatt.

US thin-film module manufacturer First Solar and Australian PV developer and installer Ingenero have formed a partnership agreement aimed at serving the market in Australia and the Asia-Pacific region.

The two companies will target the commercial and off-grid markets.

Ingenero has experience of building small to medium-scale projects,How does a solar charger work and where would you use a solar charger? while First Solar is more commonly associated with utility-scale projects.

“First Solar’s primary focus has been utility-scale projects…this collaboration will provide us with additional origination and execution diversity in medium-scale projects that will allow us to broaden our accessible demand pool across the region and meet the needs of customers that are looking to utilise our thin-film PV module technology in these types of applications,” said Jack Curtis, Asia Pacific vice president of business development at First Solar.

First Solar’s experience to date in Australia includes the building of the first utility scale solar farm in Australia, Greenough River Solar Farm, while the company recently inked a deal to supply and build Australia's largest PV projects.

Notable projects for Ingenero so far include a rooftop PV system at the University of Queensland and an off-grid solar power plant on the Tongan island of Vava’u. Ingenero chief executive officer Steve McRae said: “A collaboration agreement with First Solar and the opportunity to utilise its thin-film PV module technology brings with it the increased capability and flexibility needed to be successful in a growing market.”

Click on their website www.soli-lite.com for more information.

The Price to Install Solar

With profound solar projects in the works and expected to come online in the next three years, solar prices in the U.S. are forecast by the Department of Energy to fall drastically, reaching parity by 2020.

Could It Be True?
Greentech Media reported that worldwide photovoltaic capacity is set to double by 2015, adding another 100 gigawatts of installed solar capacity. During the past two and a half years, upwards of 50 gigawatts of solar were installed - more solar than the previous 40 years combined. What drove that significant growth? It could be that businesses are linking renewable energy sources like solar to greater security in a warming climate and increasingly unpredictable weather patterns. It could also be the 62 percent drop in solar module prices since January 2011. However, solar module prices are just part of the overall installation cost equation.

"[There is] the issue of exactly how meaningful a reduction of around $0.20 per watt in module prices (from $0.62 per watt at the end of 2012 to $0.42 per watt in 2017) is in the overall context of [solar] economics," said Shyam Mehta,How does a solar charger work and where would you use a solar charger? an analyst at Greentech Media, as quoted by Mother Jones. "Assuming an installed cost of $2.25 per watt for a utility-scale system in the U.S. right now, our base-case forecast implies a system cost reduction of less than 10 percent ... It's not exactly a game-changer."

Areas Costs Can Improve
The Department of Energy's Lawrence Berkeley National Laboratory recently determined that soft costs,Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products. the non-module price for things such as mounting hardware,Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. inverters and permitting, have only declined marginally. Such soft costs now make up a much larger portion of the total cost of a solar installation, a fact that David Roberts, at Grist, said must be addressed in order for solar to move forward.

"When it comes to accelerating the wide deployment and falling costs of clean energy, market innovation is every bit as important as technological innovation," said Roberts. "Even if PV technology remains static (which of course won't happen), enormous savings could be had simply through market building - helping markets with high soft costs match the performance of those with low soft costs."

The disparity between the U.Shop funtional and elegant solar lights, outdoor solar lighting, solar garden lights, path lights and decorative solar lights.S. and Germany - a place that has aggressively shortened the length of time the permitting process takes - is staggering. For instance, as outlined by David Crane in The New York Times, it takes eight days to install and license a solar array in Germany. It takes between 120 and 180 days in the U.S. As a result, the cost of a 4 kilowatt solar system in the U.S. costs $20,000, whereas the same system installed in Germany would cost around $7,500 to $8,000, while the installer makes roughly the same amount of profit in both cases.

Hope Is Not Lost
The Telegraph cited data from the U.S. Department of Energy that revealed as more solar systems are installed worldwide and in the U.S., technological improvements and reductions in soft costs will contribute to lowering installation costs. The DOE is projecting a 75 percent drop between 2010 and 2020. If this forecast is realized, it will give solar power without subsidies grid parity with fossil fuel sources such as coal and natural gas, according to the Institute for Local Self-Reliance.

"Is it too ambitious to assume the price of solar continues to fall by 7 percent per year?" said John Farrell, of the ILSR. "On the contrary,A solar bulb that charges up during the day and lights the night when the sun sets. if the cost of solar continues at that pace, it will take the U.S. until 2025 - 13 years! - to match today's cost of solar in Germany. Can anyone honestly claim we'll remain so far behind for so long?"

Click on their website www.soli-lite.com for more information.

Why Your Solar-Powered Home Is Still Light

For years, solar power has been long on promise, but short on delivery: Photovoltaic cells -- the building blocks of the panels that you sometimes see on houses -- were available, but the high cost of PV-cell installation and their low efficiency meant that, watt for watt, solar power was much more expensive than that from fossil fuels. For families looking to get off the grid, the economic factor was a big hindrance.

But, as Mother Jones recently reported, that equation is in the process of changing. PV cells are becoming both more efficient and less expensive, a recipe for cheaper electricity. Unfortunately,Shop funtional and elegant solar lights, outdoor solar lighting, solar garden lights, path lights and decorative solar lights. the "soft" costs -- all the assorted taxes, permitting and installation costs -- have remained fairly steady. Currently, the solar panels and the assorted hardware comprise less than a third of the cost of installation; the rest goes to labor, permits, taxes, overhead, supply chain and assorted other charges.

To get an idea of how much all of these soft costs impact solar usage, it's worth comparing the U.S. to Germany,A solar bulb that charges up during the day and lights the night when the sun sets. a country that is widely regarded as the gold standard for solar use. In Germany, PV cells cost almost the same as in the U.S., and hardware costs are about half as much. The big jump, however, comes in soft costs, which are huge in the U.S.,How does a solar charger work and where would you use a solar charger? making the price of American solar watts nearly three times the price of German ones.

Ultimately, it seems, the biggest barrier for solar energy may not lie in green cells but in red tape.

This Research in Action article was provided to LiveScience in partnership with the National Science Foundation.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products.

A University of Colorado Boulder research team has moved closer to what some call the Holy Grail of a sustainable hydrogen economy — splitting water with sunlight.

The CU-Boulder team has devised a solar-thermal system designed to use a vast array of ground mirrors to concentrate sunlight onto a single point atop a central tower up to several hundred feet tall. The tower would gather heat to roughly 2,500 degrees Fahrenheit (1,350 Celsius) and then deliver it into a reactor containing chemical compounds known as metal oxides.

As the metal oxide compound heats up, it releases oxygen atoms, changing its material composition and causing the newly formed compound to seek out new oxygen atoms. The team showed that adding steam to the system would cause oxygen from the water molecules to adhere to the metal oxide surface, freeing up hydrogen molecules for collection as hydrogen gas. To get the steam, the concentrated sunlight beamed to the tower would heat the water to boiling.

Conventional theory holds that producing hydrogen through the metal oxide process requires 1) heating the reactor to a high temperature to remove oxygen 2) then cooling it to a low temperature before 3) injecting steam to re-oxidize the compound and release hydrogen gas for collection. The innovation here is that no swing in temperature is required. The whole process can be undertaken at the same temperature, and can be driven by turning a steam valve on or off.

With the new method, the amount of hydrogen produced to power fuel cells or for storage is entirely dependent on the amount of metal oxide (a combination of iron,Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. cobalt, aluminum and oxygen), and how much steam is introduced into the system.

The researchers envision building reactor tubes roughly a foot in diameter and several feet long, filling them with the metal oxide material and stacking them on top of each other. A working system to produce a significant amount of hydrogen gas would require a number of the tall towers, each with its own reactor, to gather concentrated sunlight from several acres of mirrors surrounding each tower.

A paper on the National Science Foundation-funded research was published in the August 2 issue of Science.

Click on their website www.streetlights-solar.com for more information.

2013年8月19日 星期一

Examining Chicago's Top 5

The rustle of suits. The clink of fine china. The kerplunk of a rubber ball careening off a glass wall. These are the sounds of high society: the Union League, the University,An emergency light is a battery-backed lighting device that comes on automatically when a building experiences a power outage. the Standard, the Cliff Dwellers, and The Arts Club of Chicago. They’re the urban oases—the squash courts; the guest rooms; the cigar, wine, and golf societies; and the dining rooms—where the landscape of the city has been imagined, negotiated, and shaped for more than a century.

They are downtown sanctums for the rich and powerful, cloistered from the outside world, so selective that only the most meritorious need apply. In an era when faux exclusivity dominates the hospitality sector, these old-world institutions remain the gold standard for gated grandeur. Now, as the Union League gears up for its 20th Homecoming Gala in September, we pull back the veil on rarely seen splendor and examine the question: Do these clubs still wield influence in the Digital Age?

Community and Country
“The Homecoming Gala is the party of the year,” says Rebecca Thomson,Choose your favorite street lamp paintings from thousands of available designs. a real estate broker who’s one of the Union League Club of Chicago’s youngest directors, as we sip Scotch in one of the many bars in the organization’s 23-story clubhouse. Situated on Jackson Boulevard, it practically sits in the shadow of the Board of Trade and boasts a membership comprised largely of investors and financiers in addition to the attorneys, physicians, insurers, politicians, and other professionals who frequent the social clubs of Chicago.

It’s a Tuesday afternoon in June, the day after the Blackhawks won the Stanley Cup. Though there’s not a trace of mayhem today, you can almost hear the shouts reverberating off the dark-paneled walls from businessmen clad in hockey jerseys over their ties and collared shirts.

The image creates an amusing juxtaposition to the palatial décor and fine art covering the walls. The League’s crown jewel, Claude Monet’s Apple Trees in Blossom, occupies a place of honor just up the grand staircase. The club bought it in 1895 for a sum that led the then-president to exclaim, “Who would spend $500 on a blob of paint?” (It was not displayed until his tenure ended.)

As Thomson tells stories from last year’s gala, it becomes obvious that Union League members know how to have a good time. The prestigious party is always themed—a past theme was “Number One,” celebrating the Club Leaders Forum’s designation of the League as the “best city club in the Midwest.” Each of the myriad rooms offers its own spin on the theme, and the hospitality staff is so agile that, throughout the night, rooms will periodically shut down and reopen under a completely different interpretation. (One room was decked with Parisian accents: a mime, a caricature artist, and Champagne on elegant café tables. Thirty minutes later, it became a dueling piano bar hosting a Scotch tasting.)

Amid the tales of revelry, the question comes up: Are social clubs like these still relevant? For Thomson, the answer is an emphatic yes. “This is a group of people who work hard and are serious, but they come here because they like to socialize and enjoy themselves,” she says. “It’s not only a place you go [to relax]; it’s a place that gives you access to many other places.”

The Union League does indeed open numerous doors. It affords its members the opportunity to influence the city around them, just as it has done since its founding in 1879,Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. championing causes such as racial equality, women’s suffrage, labor reforms, and civil rights. Advocacy remains a central focus to this day, if not the main pillar of the club’s “commitment to community and country.” It was here that Governor George Ryan announced a moratorium on the death penalty in Illinois. In the Presidents’ Room, where past club leaders are honored, Senator Dick Durbin convinced a senator named Barack Obama to become a different sort of president. And so it continues. “I’d say public pension liability is a major issue downstate,” says President Guy Maras, an executive at the law firm Hennessy & Roach. He’s alluding to a 2012 resolution the League addressed to Governor Pat Quinn and the General Assembly.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products. “And is redistricting being handled properly?”

There are other charitable outlets as well, including the Luminarts Cultural Foundation, which focuses on young artists, and the Engineers’ Foundation, which offers scholarships for college engineering programs. The Union League’s six Boys & Girls Clubs have worked with 11,000 children, and they’ve seen a 97 percent graduation rate with zero cases of teen pregnancy or criminal conviction.

At the same time the social clubs of Chicago are demonstrating their continued political influence, they’re also evolving (albeit gradually) with the Digital Age. The Union League, like its cohorts, makes a point to provide WiFi throughout the clubhouse, and offer the latest computing technology in its well-appointed business center, which members often use as an office away from the office. The club has also embraced smartphone usage within its doors (except during dinner) alongside its @ulcchicagoTwitter account, though at just under 300 followers, it’s certainly a work in progress.

In many ways, the Union League offers a complete package: a high-powered social network, fine dining, fitness,A solar bulb that charges up during the day and lights the night when the sun sets. art, and philanthropy. But that doesn’t mean there aren’t challenges. Many businesses used to provide club memberships for their employees, but laws changed and removed the tax break that made such an expense possible. Membership declined, and up-and-comers joined less frequently. The recession made it worse. Clubs had to reinvent themselves or wither.

At present, membership dues are tiered according to age and residency in the city, ranging from $195 per month for 21- to 24-year-olds at one end and $285 per month for those over 35. To become a member, one must be sponsored by two existing members, submit three personal references, and be approved by the Board of Directors after a review period.

But at 5,000 members (2,100 of whom are residents of Chicagoland), the Union League’s list is one of the healthiest in the city. Twenty percent of its members are under the age of 35. Eighteen percent are women, and that number is growing. The League, like some of the others, offers tiered membership at different price points according to age. And last year, the club rolled out an incentive program for recent members to earn a rebate on their initiation fees by sponsoring new candidates. Growth continues to be paramount.

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Do you want to live in a smart city?

Around the world such cities are already being built, from Masdar in Abu Dhabi to Songdo in South Korea. Now the chaotic city near you may be in line for a makeover.

In the future everything in a city, from the electricity grid, to the sewer pipes to roads, buildings and cars will be connected to the network. Buildings will turn off the lights for you, self-driving cars will find you that sought-after parking space, even the rubbish bins will be smart.

But how do we get to this smarter future.An emergency light is a battery-backed lighting device that comes on automatically when a building experiences a power outage. Who will be monitoring and controlling the sensors that will increasingly be on every building,Choose your favorite street lamp paintings from thousands of available designs. lamp-post and pipe in the city?

And is it a future we even want?

Technology firms such as IBM, Siemens, Microsoft, Intel and Cisco are busy selling their software to solve a range of city problems, from water leaks to air pollution to traffic congestion.

In Singapore, Stockholm and California, IBM is gathering traffic data and running it via algorithms to predict where a traffic jam will occur an hour before it has happened.

Meanwhile in Rio, it has built a Nasa-style control room where banks of screens suck up data from sensors and cameras located around the city.

In total IBM has some 2,500 smarter cities projects around the world and has even trademarked the term "smarter cities".

But when, at a recent smart cities event that IBM hosted, one of its engineers joked that the company "tends to look at the pipes and then people come along and destroy all our nice optimised systems", it summed up the issue that some have with the corporate-led approach to city management.

"Some people want to fine tune a city like you do a race car but they are leaving citizens out of the process," said Anthony Townsend, director of the Institute of the Future and author of Smart Cities: Big Data, Civic Hackers, and the Quest for a New Utopia.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products.

IBM argues that it does get citizens involved in its smart city projects. In Dublin it has worked with the city council to open up the vast amounts of data it has,Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. which has led to clever little apps such as ParkYa which uses traffic data to find people the best parking space in the city.

And in the US city of Dubuque, Iowa, where it is developing smart water meters, it has offered the data to citizens via a community portal, so that individuals can see their water usage and even compare it with that of their neighbours.

But there is a sense that for the firm, cities are a problem just waiting to be solved.

"We need to build cities that adapt to the needs of [their] citizens but previously it was not possible because there was not enough information," says Dr Lisa Amini, director of IBM Research.

She makes the comparison between the "assets" of cities, such as street lights, traffic, water pipes and those of large corporations, for which IBM's systems were originally designed.

Mr Townsend is not convinced that the technology can so easily be transferred.

"Government doesn't make decisions like businesses do. Citizens are not consumers," he says.

China is busy building dozens of new cities and is starting to adopt huge control rooms like the one IBM has created in Rio.

It worries Mr Townsend.A solar bulb that charges up during the day and lights the night when the sun sets.

"The control room in Rio was created by a progressive mayor but what if the bad guys get in? Are we creating capabilities that can be misused?" he asks.+

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Star Light

"There goes one..." a man's voice called in the darkness. "It left a trail!"

A flashlight with a dim red beam clicked on for a moment. "It was a Perseid, a nice bright meteor."

"I have the Swan Nebula, do you want to look?" a different voice seemed to ask no one in particular.

Under pristine skies south of Spring Grove, the sixth annual StarBQ was hitting its stride.Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products.

"I like to listen to the chatter," said local resident Dean Johnson as he swung his 11-inch Schmidt-Cassegrain towards another object.

As event organizer, he knows the value of a truly dark sky. Light pollution often drives city-bound stargazers into the countryside, where the splendor of the night can be appreciated.

The StarBQ star party draws telescope owners, binocular users, and plenty of folks who just like to sit back and appreciate the heavens from Rochester, La Crosse, and all over the region. The two-night event was sponsored by the Rochester Astronomy Club on Aug. 10 and 11. It's traditionally free and open to all.

Johnson knows his way around the night sky better than most people know their own living room. A seasoned observer, his cap was adorned with a flurry of badges, each denoting the successful completion of an observer's course from the Astronomical League, a national group headquartered in Kansas City. His latest button is for a program called "Lunar II." Only 50 other individuals in the United States have it.

Nearby, Randy Hemann of Rochester was unloading the parts of his gargantuan telescope from its trailer. Called a Dobsonian, it's a common enough type of amateur instrument. The uncommon part was that this one sported an objective mirror 30 inches across.An emergency light is a battery-backed lighting device that comes on automatically when a building experiences a power outage.

"It's 3 years old today," he said. "I was thinking as I drove down from Rochester that it was exactly three years ago today when I got it."

Hemann is president of the Rochester Astronomy Club. He brought along a stepladder for looking through his scope, since the eyepiece is near the aperture, and the truss-tube is 12 feet long. "It has the light gathering power of 40,000 pupils (naked eye equivalent)."

A club member helped Hemann assemble the leviathan in pitch darkness, aided only by a couple of red LED lights. At a star party, nobody uses a bright white flashlight, since it would spoil night vision.

The event was timed to coincide with one of the best and most reliable meteor showers of the year. The name "meteor shower" may be a misnomer for those unacquainted with observing shooting stars, since most showers resemble a sprinkle at best.Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. A day and a half before the peak of the shower, there was often a four or five minute gap between the trails of light. Some were bright, some dim. Some zipped across the sky in a blink, while others proceeded in a statelier manner.

But meteors only represented the icing on the cake. Both evenings began with some grilling (bring your own beverage and steak with a dish to pass). There was talk about telescopes, talk about things to view, talk about upcoming events in the night sky.

"We usually warm up by going after the obvious stuff," Johnson said.Huge collection of solar outdoor light and garden lighting fixtures. "Tonight there's a crescent moon that sets early on. Then we can view Venus in the west. Saturn is well placed early in the evening as well. After that, we'll go after some double stars..."

As full darkness descended, a whole universe of deep sky objects opened up. Johnson ticked off some likely candidates for viewing... globular clusters, open clusters, extended nebula, planetary nebula, galaxies. Later, the outer planets Neptune and Uranus would rise high enough to take a peek at.

Johnson pondered his options. "We may want to look at NGC 7789 in Cassiopeia. It looks like diamond dust... As the night wears on we start looking for more difficult objects to find."

A voice called out,Choose your favorite street lamp paintings from thousands of available designs. "There's pass of the ISS (international space station) in just a couple minutes. It will appear in the west and head to the northeast."

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Downers Grove, Lisle, Westmont

The prep football season gets under way next weekend, but boys and girls golf is already going strong, and sports such as soccer and tennis will start competing before the Friday Night Lights’ switch is flipped on.

There’s plenty of star power to be found outside the hash marks and sidelines of the gridiron. The Bugle has selected 10 non-football athletes from schools in its coverage area (listed in alphabetical order) who will undoubtedly make some noise in their respective sports before all is said and done this fall.

Andrew Bassetto, sophomore, Benet boys golf—Bassetto didn’t qualify individually for state last year, but he’s a strong candidate to do so this season.Huge collection of solar outdoor light and garden lighting fixtures. Bassetto’s got quite a resume. In July, 2012, he won the Naperville Junior City Championship C-Flight for 14- and 15-year-olds after shooting an eyebrow-raising 65. At last year’s Class 3A Naperville Central regional, Bassetto fired a 2-under par 70—just one stroke behind Naperville North product Raymond Knoll, who placed third at state.

Eric Diaz, junior midfielder, Downers South boys soccer—Diaz shared the team lead in goals with eight last year, was named all-conference and was an Illinois High School Soccer Coaches Association all-sectional pick. He and the Mustangs will be aiming to go deeper in the playoffs after making it to a regional final last year.An emergency light is a battery-backed lighting device that comes on automatically when a building experiences a power outage.

Brianna Gilley, senior outside hitter, Westmont girls volleyball—The captain of the Sentinels’ girls soccer team last spring also will be a catalyst for Westmont on the volleyball court once again. Gilley gave the Sentinels a lift in their 2012 Class 2A regional title victory over rival Lisle with eight digs. She also served eight straight points during Game 1. The Sentinels compiled a 24-9 record and made it to the sectional semifinals.

Jon Harmon, junior forward, Lisle boys soccer—The Lions, who advanced to the Class 1A sectional championship last fall and were state runners-up in 2011, will need someone to step up and help fill the void left by the graduation of goal-scoring machine Eric Osika. Harmon could be that player.

Katherine Mahlke, senior right-side hitter, Downers North—Mahlke was being recruited by Ohio State and Marquette, among others, but has verbally committed to the University of Michigan. Considered one of the best right-side hitters in the area last season after compiling over 270 kills, she’ll not relinquish that distinction this year. The lefty will be a go-to player and leader on a Trojans’ team that should make a deeper postseason run this season.

Brittany Pavich, senior middle hitter,Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. Benet girls volleyball—The Redwings have lost a plethora of seniors from their two-time defending Class 4A state championship team, but Pavich returns and will be a force once again. The Boston College recruit accumulated over 280 kills and 40 blocks for the season.

Gabby Sims, senior, Downers North swimming—The Sims family is synonymous with swimming excellence. Burke and Haley Sims, both former state champions, are at Stanford, but Gabby may be the best of the clan. A multiple state qualifier and state champion, Gabby took the state 100-yard backstroke title in 2011, and was the state champ last year in the 100 freestyle. She also finished second to state and national record-holder Olivia Smoliga in the backstroke last November. Smoliga has since graduated, opening the door for Gabby to take back the backstroke crown. Additionally, she teamed up with her twin sister,Soli-lite is a premier supplier of exceptional quality solar led light and other solar outdoor lighting products. Maddy, to form the Trojans’ 400 freestyle relay, which captured fourth in 2012.

Zach Smith, senior, Downers North cross country—The Trojans, usually a shoo-in to qualify downstate as a team, missed going the past two seasons, but they should make a strong push to qualify this year, led by Smith. Smith motored to an eight-place overall finish at the 2012 meet. He owns the third-fastest time among all returning Class 3A state runners.

Leah Tzakis, senior, Benet girls tennis—A state qualifier in 2010, Tzakis missed the cut as a sophomore, but moved up from No. 2 to No. 1 singles last season and returned to state where she advanced to the fifth consolation round. In July, she competed at the G18’s USTA Regional Segment in St.Choose your favorite street lamp paintings from thousands of available designs. Louis as a doubles player, advancing to the semifinals. Her sister, Coco, was the Redwings’ No. 2 singles player in 2012.

Read the full story at www.streetlights-solar.com!

2013年8月15日 星期四

Title 24 update

California facility managers and those in commercial real estate may want to grab a seat before reading on. The new 2013 Title 24 building energy compliance standards are set to be extremely stringent, without exception provisions, and swiftly implemented starting Jan. 1, 2014, causing a bit of concern, to say the least, for those in the industry.

At an International Facility Management Association meeting Wednesday, Martyn Dodd, principal of EnergySoft LLC, stressed the sheer mass of these changes, as well as what they mean for those affected.

“There’s about five hours of material here, literally,” he said. “I’m compressing it down to about 40 minutes, so if I’m going a little too fast that you can’t write, I apologize. But the changes to the standards are the most stringent we’ve had since the inception in '78, so there’s a lot, lot, lot of material.”

Included in all that material are updates to indoor and outdoor lighting code, window regulations, separation of electrical loads, mechanical equipment requirements, solar panel space needs and even new rules on lighting retrofits, which had never been considered under Title 24 until now.

The California Energy Commission drafted the updates over the course of two or three years, and approved the language May 31, 2012.

“The stringency of these Title 24 standards is very significant,” Dodd said. “The commission is saying that the change in the standards should result in about a 30 percent reduction in building energy usage. That’s pretty significant. I think that’s a little bit of a stretch in my opinion -- maybe it’s closer to 20 percent. But whether or not it’s 20 or 30 percent, it’s a big change.”

Dodd said the reason behind the steep hikes in efficiency requirements is that the state Energy Commission is hoping to stay on track for delivering zero-net-energy buildings by 2030.

“Theoretically, in 2030, the regulations will simply say that your commercial building shall use zero energy, so that’s a pretty stringent goal,” he said.

Some of the more significant updates to the code include an overhaul on windows, both for new construction and fenestration alteration.

For new construction, Title 24 will require a high-performance glazing specification, as well as improved U-factor, solar heat gain coefficient and visible transmittance levels.

The IFMA presentation was held at the SDG&E Energy Innovation Center, the windows of which Dodd said wouldn’t meet the updated requirement.

“You guys are sitting in a LEED Platinum building here, so top-notch. The windows in this building almost meet that specification.The LED Composite Material Bulb's optical design yields more productive beam lumens and good cutoff. Almost, but not quite. So new construction they’re asking for, as far as the envelope goes, what we would normally consider to be LEED Platinum on projects,” he said.

New windows as part of existing building alterations are not required to be quite as efficient, though Dodd said they fall just slightly short of LEED Platinum levels, so it’s still a huge jump from current standards.

Aside from the added cost, the issue of sourcing this material may pose a problem, as well.

“There’s probably 5 percent, maybe 3 percent, of the products in the industry that will meet that specification,” Dodd said.

Additionally, all nonresidential buildings, as well as hotels, motels and high-rise residential buildings applying for permits on or after Jan. 1, 2014, must leave a minimum of 15 percent of their roof space available for possible solar paneling. This space can’t be used for heating, ventilation or air conditioning systems or other equipment.

There is an exception to this stipulation if there is space designated for solar elsewhere on the premises -- one of the only exemptions allowed throughout the new code.

One of the biggest changes to outdoor lighting regulations is the requirement for motion sensors on any light fixture mounted lower than 24 feet, and applicable to any outdoor lighting reconfiguration. The idea is that if no one is in a certain area, a parking lot for example, the lights will dim by 50 percent, and then increase to 100 percent when someone walks by. In the parking lot situation, each light would use full capacity when someone walked by that individual fixture, meaning the lights would come on one after the other as someone walked to his or her car,We are expanding more cooperation partners of LED PL Lights all over the world. as opposed to coming on all at once.

Attendees asked about exemptions for security lights or for security reasons, but Dodd’s answer was simple: nope.

“I am not aware of any exceptions in there for outdoor lighting related to security,” he said.The most important aspect when it comes to 100-200W Square Flood Light is the fact that they need very low power to work. “So it’s still got to have the motion sensors.”

The only way out of this is to install pole-mounted lights less than 75 watts or non-pole-mounted lights less than 30 watts. Basically,These are one of the 10-70W Square Flood Lighting you can buy, with one of the lowest defect rates in the industry. you’re off the hook if you want to use low-wattage LED lights, but if not, the motion sensors are mandatory.

The updates outlined above are just the tip of the iceberg. Indoor lighting will also have occupancy sensor requirements,Indoorilite offers the best LED Spotlights and the best halogen spotlights around. and there will be outdoor air regulations. HVAC and mechanical equipment use-efficiency will mandatorily increase, though this is part of a Department of Energy policy not taking effect until Jan. 1, 2015.

While the goal of these planned changes is reflective of the state’s attempt to be more sustainable and use less energy throughout all sectors, facility managers Wednesday said the new Title 24 requirements serve to dissuade people from making upgrades to their building, even those that would improve the efficiency of older buildings.

“You’re saying it [is a disincentive for] people from doing upgrades to their building, and I would agree with you,” Dodd said. “I’m not in disagreement there.”

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DPR Construction's Phoenix office

Located on a declining area at the corner of 44th and Van Buren, the windowless concrete block,Rectangular shaped Led Flood Light designed to replace 150W Metal Halide. 16,533ft building, built in the 1970s, was transformed into an efficient, sustainable workplace for adaptive reuse. The building was previously used as an adult-themed boutique, which remained vacant for three years.

Designed as an ultra-energy efficient and modern workplace, the renovated building integrated solar and wind technologies, and implemented efficient HVAC and lighting systems to reduce energy use.

To achieve Net Zero Energy Building Certification, the facility demonstrated a net zero energy consumption in one year time span, incorporating advanced, sustainable design solutions.

An 87ft solar chimney has been installed in the building for a passive cooling system, releasing hot air,I'm not sure how led downlight fit into that equation if they are left on. and drawing cooler air in.

The building includes 90 operable windows in tandem with the energy monitoring system to open and close according to indoor and outdoor temperatures.

To let in abundant natural light, 82 solar optical tubes and solatubes harness light from rooftop domes while twelve 8ft diameter Big Ass Fans ventilate the office. A “vampire” switch eliminates drawing power at night when the building is unoccupied, cutting off 90% plug loads.

For building temperature regulation,It is also known as led dimmable driver, LED daytime running lamps. four evaporative shower towers are installed, which direct water-cooled air inside.

A 78.96 kW photovoltaic-covered canopy, instrumental for the facility to achieve Net Zero energy consumption, generates power to offset the building’s annual energy usage and supplies power to the building and half of the parking lot.

The office’s reception area features an online building dashboard to track the building’s energy production and consumption in real time.

The interior has been designed as a workplace of the future, including open work areas void of enclosed, private offices; video conferencing rooms; a learning lab; and a glass-walled innovation room with whiteboards and reconfigurable furniture.

The rolling, glazed, garage-style doors join the inside offices with an outside courtyard.

The on-site amenities of the office include a gym with men’s and women’s showers, a Zen Room, 18ft wine bar, a kitchen with café, and two green-screened outside courtyard.

DNV KEMA Energy and Sustainability served as sustainability consultant while PK Associates provided structural engineering services.

The office was completed in October 2011.

Dramatic twist

But the full facts about the incident remain murky – not least because there is another dramatic twist to the tale.

What Thordarson did not know at the time was that Sabu, the loudmouth figurehead of LulzSec and one of the hackers he was communicating with, was in fact working as an FBI informant – and the online chat about hacking Icelandic government infrastructure was apparently being monitored by the feds.

About four days later, the FBI contacted Icelandic authorities to warn them about an "imminent" hacking attack, according to Iceland's state prosecutor, and this prompted Icelandic police to travel to the United States to discuss the matter.

(Sabu, it later turned out, was a then-28-year-old hacker from New York named Hector Monsegur. The FBI reportedly tracked him to his Lower East Side apartment in early June 2011 and managed to "flip" him, because he was the guardian of two young children and desperate to stay out of jail.)

Thordarson says LulzSec never gave WikiLeaks any information about Icelandic government corruption, but hackers close to the group did hand over a confidential Icelandic state police document related to the security of the US Embassy in Reykjavik.

He also claims that hackers affiliated with LulzSec and Anonymous turned over documents from a bank in Mexico, files from BP, and emails hacked from the Syrian government and the security think tank Stratfor, among others.

Between February 2012 and July 2012, a large cache of Syrian government and Stratfor emails were published by WikiLeaks under the names the "Syria Files" and the "Global Intelligence Files." (As a matter of policy, WikiLeaks does not comment on how its releases are sourced.)

Being at the centre of the action had given Thordarson the adrenaline rush he was looking for. But the contact with LulzSec, which he had initiated, made him feel like he had gone too far.

He was worried that in maintaining contact with the hackers,Dimmable and Non-Dimmable LED Driver for LED Lighting Products.An electronic LED Ceramic Bulb for preventing elevator overspeed by enabling safety devices. he was "breaking quite a lot of laws." Meanwhile, news reports were saying that the U.S. government was already investigating WikiLeaks for its publication of classified documents, including the Collateral Murder video, diplomatic cables, and military war logs from Afghanistan and Iraq.


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5.32 Wpeak cell power

IBC cells are an attractive concept for a future cell generation since optical shading losses due to front-side metallization are avoided and the rear-side metallization can be completely silver-free. By application of novel and smart module interconnection concepts the prominent advantages of an IBC-cell are fully exploited: high voltage, extraordinarily high current density and nice appearance.

With conventional techniques, the process sequence for IBC cells is quite complex,For direct lighting applications T12 tube lights uses both light and energy more efficiently. since patterning steps and several furnace steps are required to form the locally doped regions on the rear side and the full area doping of the front side. Ion implantation offers a huge process simplification potential here, because implantation is per se single-sided and patterning is realized in-situ by inserting shadow masks into the ion beam. Moreover, only one high temperature step, the co-annealing of all irradiation defects, is required. Due to this drastic simplification of the process flow,Rectangular shaped Led Flood Light designed to replace 150W Metal Halide. ion implantation technology is disruptive to the IBC cell cost structure.

The focus of the program was to develop industrial-like IBC cells without the usage of lab-type techniques. For example, an industrial evaporation tool was used for PVD (physical vapor deposition) metallization and laser-based structuring rather than photolithography was applied.I'm not sure how led downlight fit into that equation if they are left on.

Some alternative processes, especially passivation of the doped regions with aluminum oxide, their insulation after evaluation of various insulation layer stacks and PVD metallization using sputtering instead of evaporation were developed in the parallel publicly funded project "xμ-Zellen – Phase 2" in the frame of the Cluster "Solarvalley Mitteldeutschland.It is also known as led dimmable driver, LED daytime running lamps.Our LED Dimmable COB downlight are the answer to your lighting prayers!"

The best energy conversion efficiency achieved for the pseudosquare 156mm×156mm solar cells on n-type Czochralski-grown Silicon wafers, supplied by Bosch SE, was measured to be 22.1 percent where the open circuit voltage (Voc) was 676.2mV, the short circuit current density (jsc) 41.6mA/cm2, and the Fill Factor (FF): 78.5 percent. This corresponds to a cell power of 5.32 Wpeak which is the highest value reported for a homojunction silicon solar cell.

Moreover, potential is identified for further improvements of Voc and FF.
The project results have shown the high efficiency potential of this solar cell concept and the patterned ion implantation as an enabling and economical doping technology.

Viridian Solar has announced that its new range of Clearline PV modules has broken the 500Wp barrier.

The company claims that the use of higher performing cells coupled with a larger panel format has taken the rating of the range to 500Wp per panel.

Commenting on the new Clearline range, Mike Chorlton, said: "People like to think in round numbers and often target array sizes in that way, particularly in whole kWps."

He continued: "The 500Wp panel now means that you can hit those targets with just two panels for each kWp, giving a much neater looking installation."

The Clearline range of solar PV modules are designed for in-roof installations and also have a matching range of solar thermal panels.

Read the full story at www.streetlights-solar.com!

2013年8月14日 星期三

Help Asheville Darkroom

The Asheville Darkroom is approaching the end of an Indiegogo fundraising campaign aimed at raising $4,400 by Aug. 21 for operating funds and program expansion. To that end, there will be a benefit at The Odditorium this Saturday, Aug. 17. The evening will feature performances from area musicians Claypool, Wes Tirey and Option Anxiety, as well as karaoke and a late-night DJ dance party. Also featured are raffles for local goods and gift certificates and a silent auction for local artwork by photographers such as Jason Scott Furr, Laila Alamiri and Wesley Duffee-Braun — not to mention works by Asheville Darkroom directors Bridget Conn and Jason Clements.

As with many Indiegogo campaigns, donors will be rewarded with various prizes ranging from buttons to hand-printed photographs. Larger donations garner grander prizes, such as year-long memberships, one-on-one darkroom lessons or large-scale photographs by some of the AD artists.

This is the second such event for the soon-to-be 501(c)3 Asheville Darkroom. Andrew Fedynak, an Asheville-turned-Richmond-based photographer, created the space in 2009. Since then, it has resided in a small chamber-like room in the Flood Gallery at the bottom of the Phil Mechanic Studios. Last year the Darkroom launched a Kickstarter campaign to help generate much-needed operating funds to support programming as the directors and the AD’s scope changed.

In April 2012, Conn and then-co-director Miranda Maynard began running the Asheville Darkroom. The leadership change-out also marked the Darkroom’s transition from a small, member-stocked and meagerly-funded secret space to a fully-public community utility on its way to non-profit status.

Conn and Clements finished filing the necessary paperwork with the state in January. But now it’s down to a waiting game, they say. “The Flood [Gallery] took a year and half to get approval,” Conn told the Xpress, “so we don’t know what to expect.”

Nonprofit status will allow the Darkroom to apply for grants to bolster growth and expand the workshops, classes and community programs they offer. Since opening, the AD has offered classes and workshops ranging from photo-101 and entry level classes to those that teach advanced techniques and practices.

They also host an ongoing series of monthly, group-led photo critiques. The critiques are open to the public, though there are some restrictions — you must be in the field of analog (darkroom, not digital) photography and you have to bring finished works of art.How does a solar charger work and where would you use a solar charger?We have a great selection of blown glass backyard solar landscape lights and solar garden light.

The critiques started out with just the core Darkroom members showing up, she says — four or five people. But recently, they’ve had photographers coming from as far away as Johnson City and Bristol. Conn says that out-of-town visiting artists all travel here for the same reason: “There’s nobody around us to really look at the art, to really discuss it.”

Criticism often gets a bad rap in such tight-knit and relatively small arts communities. It can be seen as crass and occasionally harsh. Some even propose that it hurts the arts community because critiques, by their very nature,How are solar outdoor lighting products different from other lighting, like fluorescent or incandescent? are not entirely positive. This writer believes those people are wrong — nothing grows stronger if everyone hides their distaste with crossed arms and kind comments.

Conn says the critiques are constructive. They tackle the basic concepts and principles of art while fostering improvements in film exposure,A solar bulb that charges up during the day and lights the night when the sun sets. darkroom developing and printing techniques. “Nobody leaves crying,” she says.

It’s a program that Conn and Clements say they often think about expanding to include other mediums and artists. “It’s mostly photo,” she says, “but we’re entertaining the idea of taking in other mediums.”

Conn and Clements are also looking to implement a lecture series and host regular film screenings.Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. The lecture series, Conn says, would bring in a mix of photographers and non-photo artists and educators from the local and national arts scene and academia.

To a degree, the programs transcend photography and enter into the greater artistic landscape. “What we’re doing needs to be seen as art first, then photography,” says Conn. The Asheville Darkroom invests in and enriches the Asheville photography community, and thus the Asheville art community.

Read the full story at www.soli-lite.com!

DTLA federal

Officials broke ground last week on a new federal courthouse in downtown Los Angeles that will eventually fill a long-vacant lot on 1st and Broadway with a 600,000 square-foot building.

The new home of the U.S. District Court will be designed to use more solar heat and let in more natural light. It will also house several government agencies that serve the Central District of California, including the U.S. Marshals Service, U.We have a great selection of blown glass backyard solar landscape lights and solar garden light.S.Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. Attorneys' Office and the Federal Public Defender.

“It’s going to be a giant step forward in terms of its use of energy and leaving as small an environmental footprint as possible," said Langston Trigg, interim director for design and construction on the project. "It’ll be a very attractive addition to downtown Los Angeles.”

It will be a $319 million addition, which will also include increased security measures, a new cafeteria and more outdoor space. The building itself will look like a large cube.

"The shape of this courthouse, through its simplicity and luminous, Euclidean clarity, will define its role as an important and timeless civic addition to Los Angeles' governmental precinct," said project designer Craig Hartman, in a statement. "Its gardens, courtyards and civic plaza - accessible to all- will convey a generous sense of public-spiritedness."

But as one hole gets filled, another may be left empty — or at least a building left unused.How are solar outdoor lighting products different from other lighting, like fluorescent or incandescent? Trigg said that the GSA has not decided what to do with the old courthouse yet, or whether they will tear it down or fix it up.

Officials at the GSA previously told KPCC that the Spring Street courthouse has asbestos issues, security problems and is need of a seismic retrofit. All are issues that would need to be addressed if the building will be used for some other purpose.

The new courthouse should be completed by 2016. Crews are currently in the process of testing the soil and prepping the site for construction.

The grid's reliability is high, according to a May report from the North American Electric Reliability Corp., which sets standards and tracks the performance of the power plants and high-voltage transmission lines that make up the bulk power system. Last year was particularly good. Not including extreme weather events, major transmission lines caused power losses only twice in 2012, after averaging nine instances annually from 2008 to 2011.

The report says transmission lines have been functioning normally and available for use an average of 99.6 percent of the time, not including for planned outages, since tracking began three years ago.

Most outages residents experience stem not from the bulk system, but from smaller failures in distribution systems managed by local utilities and regulated by states. Not including storm-related outages, the average U.S. customer goes without power 1.2 times annually for a total of 112 minutes, according to PA Consulting Group.

The bulk power system is changing, a result of the declining use of coal and nuclear power and the rising use of natural gas and renewable power.

One-sixth of the existing coal capacity is projected to close by 2020, much of it at small, inefficient units in the Ohio River Valley, the Mid-Atlantic and the Southeast, according to the Energy Information Administration. The permanent closure of four nuclear reactors in California, Florida and Wisconsin was announced this year, and reactors in New York, Vermont and elsewhere may also close.

Plant shutdowns mean there's less of a cushion in electrical capacity when power demand is high or problems arise. Shutdowns also create pockets of transmission congestion or regions where power is scarce. Both situations drive up power prices for customers, make the grid less stable and present planning challenges.

"That is a new stress that we hadn't thought about" a decade ago,How does a solar charger work and where would you use a solar charger? said Scott Moore,A solar bulb that charges up during the day and lights the night when the sun sets. vice president of transmission engineering and project services at American Electric Power, one of the nation's biggest utilities.

The reliability report raises concerns about the Texas grid, one of the three major U.S. grids, where the amount of wiggle room in capacity is expected to dip below targeted minimum levels.

Growing reliance on natural gas-fired generation also creates weak spots.

For example, utilities that supply natural gas to customers for heat can typically take all the gas they need from pipelines before any excess goes to electricity generators. In regions with limited pipeline capacity, such as the Northeast, planners say there might not be enough gas to heat homes and generate electricity simultaneously during a cold snap.

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Etchells class action

The week kicked off with a bit of drama as a crew member went overboard from Freelance down a windy run in race 1 and quite a few of the fleet had to interrupt their races to assist in picking him up. This left the winning boat from two years ago having to retire as the kick off to their campaign. Last years winner James Howells was not out this year. Another likely contender, recent winner of the Bedrock Trophy, Robert Elliot also posted 18 points on the board with an OCS but perennial Cowes Week challenger Mark Downer in Moonlight could be happy with his day after taking the bullet in race 1. Rob Goddard was second and in a sign of what was to come in terms of tight racing Exabyte (Shaun Frohlich) and Ziggy (Kevin Downer) couldn’t be separated for third.

Race 2 saw the start of the turmoil that was in the end to ruin Mark Downer's week. Despite being in the vanguard of the fleet (Editors note; as he always is when racing at Cowes Week!) he inexplicably had a navigation error and slipped down the fleet to score an uncharacteristic 13th. Goddard’s early form deserted him and he added a ninth to his second while Elliot got his campaign back on track with a solid second place.How does a solar charger work and where would you use a solar charger? Winners of race 2 were the RYA youth team who had qualified in the RYA / Etchells spring trials to win a fully funded race prepared Etchells for the season thanks to the continued support of Ted Fort OBE. Tarra Gill Taylor and crew (Matt Wallace, Harry Derbyshire and Tom Pain) showed that despite this being their first Cowes Week they would be contenders after their first season of Etchells sailing. In the overall scores it was mayhem,How are solar outdoor lighting products different from other lighting, like fluorescent or incandescent? with only Exabyte being sailed by Shaun and Emily Frohlich along with Duncan Truswell having two decent scores (3, 3) and the week was wide open.

Race 3 saw Laurence Mead return to the helm of 1339 after a few days away and the fleet were treated to a difficult race heading east on an ebb (west going) tide so the first leg was a choice of going up under the Norris headland for tidal relief or staying further offshore for better breeze and hoping it was enough to stem the tide. Offshore was better: Downer and Cooper were offshore and led,A solar bulb that charges up during the day and lights the night when the sun sets. Mead was the most inshore boat and therefore well and truly last after the Norris headland (some welcome back to the Solent for Mead who has moved to Hong Kong) so his regatta looked to be in trouble. The fleet circulated around with not a lot changing until almost unbelievably Mark Downer who had worked his way into the lead led his brother Kevin and Andrew Cooper (who had two top five finishes so far) the wrong way round the fourth windward mark. As this was also down tide it took them a long time to correct their mistake. They eventually finished ninth, 11th and 12th which really shook up the overall standings for the week. Goddard won, Elliot was second, Gill Taylor third and lots had changed very suddenly!!!

Race 4 was lost to a day of sunshine and light air after the sea breeze filled in too late for any sailing to take place so Race 5 on Wednesday was a must deliver for some of the contenders. Cowes Week is eight long days so there is plenty of time to catch up but at some point if you are going to win it you have to start putting scores on the card which are in low single digits. For at least three of the possible contenders that day had come.

Another start to the east but this time with the tide under the fleet and this time in a weak but established north easterly.Soli-lite provides the world with high-performance solar roadway and solar street lighting solutions. At the gun four boats were head to wind all squeezing inside the pin end with Mead deciding to go back for the second time in as many days (both proving later to have been unnecessary!) while Mark Downer led the left hand pack into a quick and commanding lead. The rest of the fleet swapped between wanting a bit of right hand action for better tide with the fact that the mark position meant a long starboard and not much port to do.An emergency light is a battery-backed lighting device that comes on automatically when a building experiences a power outage. Mead came back by footing hard into better pressure left while Goddard and Frohlich got too far right and softer pressure saw them both struggling. Also up and running in the top three were Wilfred Wagner on 'Wake' and ex Chairman of the International Etchells Association Bill Steele in Chelsea Lady sailing with David Heritage and young Casper Groenewegen from Holland on the bow. At the first mark a decent left shift made the next leg a tight reach and those who had looked in trouble to leeward suddenly found themselves arcing up to the fleet to be top five again.

This bought all the main contenders back into the fray and from there the race was a great battle amongst the top six or seven with only Downer having an easy ride of it out front. On this beat Mead pulled his regatta back together by getting into second while Goddard really put a claim in for the week by getting into third and Gill Taylor with a 10th and Elliot (DSQ after he lost a port starboard protest and scored another 18 points) both saw their regatta get a lot harder.

Click on their website www.soli-lite.com for more information.