Wednesday, November 25, 2009

Castle Drogo wins award for biomass boiler

Castle Drogo on Dartmoor has won an award for being one of the best examples of sustainable energy in the South West with its new biomass boiler.

One of eight winners, England’s last castle took home a highly-sought after Green Energy Award for its biomass boiler, in the category of ‘Best Renewable Energy Scheme’.

The new biomass boiler has reduced the Castle's annual carbon emissions by 150 tonnes and generated 1,000,000 kilowatt hours of renewable heat per year. It is easily accessible to 125,000+ visitors a year, and is included in visitor tours that further promote renewable energy. The fuel for the installation is supplied by a local woodchip supplier, with 50 per cent coming from the estate itself with 100 per cent by June 2010. Many members of the local community, other businesses and charities have also visited Drogo to have a look at the new boiler to see if our success can be replicated elsewhere.

The winners were chosen from a high-quality shortlist of entrants from across the region by an independent panel of judges who have expert knowledge in sustainable energy.

David Bailey, Castle Drogo Property Manager said: “We are thrilled at receiving this award; it’s a real credit to everyone who has been involved on this project. Our aim is to be free from fossil fuels by 2016 through using hydro and solar power and by reducing our energy requirements. Our new solar boiler has already reduced our fossil fuel needs by 50 percent. We not only want to be the last castle built in England but also the greenest!”

Solar Power 50% Cheaper By Year End

By the end of 2009, there will have been a 50% drop in the levelized cost--i.e. the lifetime cost per kWh before subsidies--of solar power, and a 10% reduction in the levelized cost of other sources of renewable energy sectors compared to the end of 2008, according to new analysis by New Energy Finance.

“So far this year, the steady decline in the cost of equipment in sectors like solar and wind has been largely offset by the increasing costs of financing,” said Michael Liebreich, chairman and CEO of New Energy Finance. “By the end of this year, however, as capital markets loosen up and equipment prices continue their decline, we will see the levelized costs decline, finishing the year 10% below the end of last year across the board and far more than that in solar.”

Photovoltaic (PV) module prices across the board have continued their downward trend, although the rate of decline has tapered. Thin-film remains the low-cost leader in solar with projects as cheap as $3/W, making thin-film projects 25% less expensive than crystalline silicon systems on a levelized basis.

PV projects with tracking systems have seen the least reduction in costs due to the fact that costs for single- and double-axis trackers have remained buoyant relative to panel prices.

Although new transactions have been few, turbine prices have fallen to their lowest levels in several years at 18-20% below early 2008 levels. To date, this drop in equipment prices has mostly been offset by higher costs of financing.

In the offshore market, costs continue to rise with projects moving into deeper waters, facing increasingly complex construction and capital costs. As capital markets begin to recover, both onshore and offshore projects should begin to see falling levelized costs.

Levelized geothermal costs are particularly sensitive to fluctuations in capital markets and drilling stage debt and equity has been in scarce supply through this year. Drilling costs fell by nearly 50% as drilling rigs flew into excess with a falling oil price, but these have recovered in the last quarter in step with oil. In the past quarter levelized costs have risen by 8-10% but should remain flat at year end.

Reprinted with permission from SustainableBusiness.com

Suniva solar cell technology powers India’s first large-scale solar project

Suniva®, Inc., a U.S. manufacturer of high-efficiency monocrystalline silicon solar cells and supplier of Suniva-branded solar modules, today announced the completion of its collaborative project with Titan Energy Systems Ltd. to create India’s first large-scale project in Jamuria, West Bengal. Suniva’s cells power the 1MW solar electric power plant which is expected to expand an additional 250kW early next year.

“High-efficiency solar technology presents significant advantages in terms of land use and balance of system costs, and Suniva is our key partner for delivering the high power and volumes needed to keep projects reliably moving forward,” said Sankar Chodagam, Managing Director of Titan Energy Systems Ltd.

The Indian government recently approved a National Solar Mission, which includes a target of deploying at least 20GW of solar projects by 2020, as part of its national strategy to provide power to millions of citizens and combat climate change. Over the next five years, Titan plans to develop a series of large-scale projects and installations in Andhra Pradesh, India. Suniva fully supports and looks forward to continuing its collaboration with the fast-growing Indian market.

“As India pursues its significant goals for solar power, innovative solar cell technology will be just as crucial as new system designs and deployment strategies,” said John Baumstark, CEO of Suniva. “We maintain a close and open dialogue with Titan in order to provide them with the best possible technology solutions and look forward to partnering with them in the recently announced 1 GW project in Andhra Pradesh. Our collaborative projects in India, the United States and throughout the world will help shape the future of renewable energy.”

Worldwide interest in solar technology made in the United States continues to grow. Suniva’s technology is currently being integrated into a variety of installations throughout the United States, including a 550kW solar farm in North Carolina and a 10MW development in Georgia.

Can I Really Heat My Pool From Solar Panels?

Would you like to heat your pool with solar energy? Because, there’s good news! Installing solar panels to heat your pool won’t cost you much. You can even construct them yourself for under 0 in materials and less than a weekend’s worth of your time. An added benefit is that, after the initial installation cost, you won’t be paying an ongoing fuel bill.

Why Not Discover the Advantages of Building Solar Energy Here?

But before you go forward, you’ll need to take some things into consideration. First, would the system receive ample sunlight throughout the day? The solar panels best for heating pools are simple passive collectors. They usually consist of plastic, water-filled coils encased in shatter-resistant glass. As water collects in the coils, it becomes heated by the sun, then pumped into the pool.

If your property has a lot of shade trees, there might not be sufficient sunlight for a passive solar water heater. However, an unshaded south- or west-facing rooftop is an ideal spot for solar panels to get the full benefit of sunlight.

Building Solar Panel is Much More Simple

Next, think about the difference between how warm you want your pool to be and the temperature outside. For example, if you’re thinking about heating an outdoor pool in Minnesota to 80 degrees during a freezing winter, stay with pool covers and a powerful gas heating system. On the other hand, if you want to heat your outdoor pool in Texas to 80 degrees in 50-degree weather, then a solar heating system would be ideal.

When you do install a solar heater, you’ll still want to cover your pool for such times when the air is cooler than your pool’s water temperature. Any time you notice steam rising from the pool’s surface, it’s best to use the pool cover to retain the heat.

An Informative Instruction on How To Join Solar Cells Cheaply

Here’s a word of caution if you’re just learning about solar heating systems. Some people think they may be able to save even more money by using their pool’s solar heater for hot water in their house. But unfortunately, the two systems don’t mix well. The water in your pool is being conditioned with chlorine and muriatic acid. It won’t do any harm to swim in it or to swallow a little, but you really don’t want to mix it with your home’s drinking water system. Installing a solar water heating system for your home is an entirely separate project.

Causes Of Land Pollution And Recycling Facts

Current info about the causes of land pollution is not
always the easiest thing to locate. Fortunately, this report
includes the latest facts about solar energy available.

Solar energy is energy from the sun. When the sun is shining
solar energy is being produced as it sends the heat
radiating to the earth. Solar energy is as plentiful as
daylight, as limitless as organic life itself, a fuel that
comes free of charge and replenishes itself every time the
earth rotates on its axis. Almost all energy, after all, is
ultimately stored solar power: Oil, gas, and coal were born
of the ancient sunlight that fed prehistoric animals and
plants, the wind is set howling by the sun's unequal heating
of the atmosphere, and even a campfire draws its warmth from
solar power trapped long ago through photosynthesis.

Wind and water have been used to power mills for centuries.
Wind power is a totally renewable energy source with no
greenhouse gas emissions, but due to its unpredictability,
has problems integrating with national grids. Combined
together, wind and hydrogen can cancel out their inherent
defects and be an effective tool in the battle against
carbon dioxide and global warming. Winds are rated in seven
classes; higher class numbers indicate stronger winds.

It seems like new information is discovered about something
every day. And the topic of solar energy is no exception.
Keep reading to get more fresh news about the causes of land
pollution.

Wind forecasting played a significant role in enabling
large-scale wind power penetration and we believe that
forecasting PV production is less complex and will have
similar results for enabling industry growth. Wind energy in
Spain has now entered a dynamic phase where the serious
challenges that arise when wind energy becomes one of the
main energy supply technologies need to be met. Current
policy direction signals how an intermittent power source
can be integrated into the electricity market in significant
quantities.

Solar energy research is expanding rapidly, with many new
ideas being explored - some using exotic nano-materials
combined with ingenious engineering approaches. PVs look set
to contribute significantly to future power generation.
Solar energy use accounted for 129 kilo tons of oil
equivalent (ktoe) in 2000 and is projected to be 431 ktoe
and 828 ktoe in 2010 and 2020, respectively.

Renewable energy provides more jobs per unit of output and
per dollar spent than conventional energies do. Economic
woes and high unemployment rates influenced Spain's 94
decision to invest in renewable energy. Renewable energy is
no less reliable than energy generated from more traditional
sources and using it does not mean that you have to change
your lifestyle or your appliances. Using renewable energy
can be as simple as using the sun for drying clothes or can
mean taking advantage of more sophisticated renewable
technologies, such as photovoltaic cell systems, which
use the sun's heat and light to generate energy, wind
turbines or ground source heat pumps which extract energy
from underground. Renewable energy is important for the
environment as it produces little or no greenhouse gases.
The exception is biomass which is considered as being
'carbon neutral'.

Now you can be a confident expert on the causes of land
pollution. OK, maybe not an expert. But you should have
something to bring to the table next time you join a
discussion on the facts about solar energy.

About the author: EnergySavingSite.info brings you
information on
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Wednesday, November 11, 2009

Solar Energy Is Here To Stay

Solar Power Inc (OTC:SOPW) traded upwards 16.53% to close at $1.41 on news the company will team up with Aerojet to add an additional 2.4 megawatts to the photovoltaic solar power system currently installed at Aerojet’s Sacramento, California site. The system will be expanded to six megawatts and become the largest single-site industrial solar energy location in California and one of the largest in the country. California Governor Arnold Schwarzenegger signed an executive order on September 15th requiring that 33% of energy consumed in California come from renewable resources by the year 2020. Governor Schwarzenegger was quoted as saying, “The addition of this large-scale solar project is further evidence that reliable, renewable and pollution-free technology is here to stay.” Headquartered in Roseville, California, Solar Power Inc is a technology company which manufactures, installs, integrates, and sells photovoltaic panels or modules and solar systems which convert solar energy into electricity, primarily for consumers in the US.

Semiconductor Manufacturing Int’l (ADR) (NYSE:SMI) climbed 60.33% to close at $3.88 on news the company has settled all pending lawsuits with Taiwan Semiconductor Manufacturing Company Ltd. Terms of the settlement includes payment to Taiwan Semiconductor Manufacturing Company of an aggregate of US$200 million payable upon instalments over the next four years. The settlement also grants Taiwan Semiconductor Manufacturing Company 1,789,493,218 shares of SMI (representing roughly 8% of SMI’s issued share capital) and a warrant to purchase 695,914,030 additional shares of SMI, which would allow Taiwan Semiconductor Manufacturing Company to obtain approximately 10% of SMI’s issued share capital. The terms include measures in the case of a breach of these conditions. Headquartered in Shanghai, China, Semiconductor Manufacturing International Corporation designs, manufactures, packages and tests microchips used in almost all electronic equipment. The company’s semiconductors are used in computers, mobile telephones, digital televisions, digital cameras, DVD players, and other entertainment devices; as well as in consumer electronics, and automotive and industrial applications.

Reprapable Solar Power

We've discussed reprapping solar panels for a long time, and - of course - our semi-conductor printing capability isn't quite up to that yet.

But it should be possible to reprap a small-scale solar array like a miniature version of the industrial one at Daggett above.

It would use reprapable solar-powered steerable mirrors. Those would be an autonomous motorized gimbal mirror support with a tracker that keeps the sun's reflection pointing the same way at all times (onto a solar boiler, say). The idea is you'd reprap out a load of these, then walk round a field putting them down. They'd all align themselves and start delivering solar power...

I think the trick is to black out a corner of the mirror except for a small circular spot in the middle of the black. Each steerable mirror has a detector on a flexible arm that you place where you want the reflection of that spot to be. Feedback keeps the spot-reflection on station, and hence the main mirror also on station. A really clever design would combine the spot detector with the local solar cell that provides the motor and controller power.

Sharp Develops a Solar Cell with the World’s Highest Conversion Efficiency of 35.8%

Sharp Corporation has achieved the world’s highest solar cell conversion efficiency of 35.8% using a triple-junction compound solar cell.

Unlike silicon-based solar cells, the most common type of solar cell in use today, the compound solar cell utilizes photo-absorption layers made from compounds consisting of two or more elements such as indium and gallium. Due to their high conversion efficiency, compound solar cells are used mainly on space satellites. Since 2000, Sharp has been advancing research and development on a triple-junction compound solar cell that achieves high conversion efficiency by stacking three photo-absorption layers.

To boost the efficiency of triple-junction compound solar cells, it is important to improve the crystallinity (the regularity of the atomic arrangement) in each photo-absorption layer (the top, middle, and bottom layer). It is also crucial that the solar cell be composed of materials that can maximize the effective use of solar energy.

A Simple Homemade Solar Air Heater

A Simple Homemade Solar Air Heater - Build Cheap DIY Solar Powered Air Conditioning Heaters

The use of solar energy from the sun is one of the ways where depletion of resources (especially that of consumable energy generators such as oil and coal) is lessened and conservation of energy is maximized. Knowing on how to build a simple and cheap diy homemade solar powered air conditioning heater to heat up a room or a house is one example of the application of solar energy for household use.

The basic principle in making a solar air heater lies in the behavior and movements of air, metals and colors. Inside the main body of the solar air heaters are pipes or tubings coated in black paint (using black paint enhances the ability of the pipes to absorb heat). These pipes are also made up of metals which have abilities to attract and absorb heat (some environmentalists use aluminum cans because this metal has a high thermal conductivity and at the same time by doing so recycling is done lessening the garbage and effect to land contamination).

Solar air heaters are usually situated in a vertical position where its body or at least a large portion of the whole apparatus is exposed to the sun’s rays. As cool air enters the bottom portion of the tank, it passes through the black-coated pipes and it is in this process that transfer of heat from the pipes to the transient air happens (convection). The laws of heat transfer states that heat moves from the hotter body to a cooler one, following this law, the pipes which in this situation is the hotter object gives off its heat into the cooler body, the moving air.

Basic theories of science also states that one of the properties of air is that cooler air moves down and hotter air goes up. This is partly one of the hidden reasons why solar air heaters are suggested to be built vertically rather than horizontally, because without using any other equipments or devices cool air enters the bottom of the heater then as the temperature goes up due to the transfer of heat this air goes up into air vents or tubes which is connected to the room or house where increase in temperature is desired. No more compressor or pump is necessary for such movement.

The longer the pipings and tubings are and the more tubes the air passes through the higher the increase of temperature from the final output to the initial input are achieved. Designs such as loops and the “snake” piping configuration are sometimes suggested by literature for use as it requires slower rising of air to the outlet and having more heat transfer processes as it passes through. However by using these complex patterns it must also be taken into consideration that this also has a negative side because if insulation of heat is quite poor the longer the pipings are the more chances the initial heat acquired by the air is instead given off to the surroundings. Now you have a better idea on how to build a simple and cheap diy homemade solar powered air conditioning heater.

Photovoltaic cells to create a base contrarian

In recent days, is located in Zhejiang Province town of Henderson Nanxun practice Photovoltaic Power Technology Co., Ltd. is engaged in the production plan of a new order, this order is from Germany, 550 kilowatts solar photovoltaic power plant design, production and installation. “6 months, we have received two large orders for photovoltaic power generation, production tasks are extremely nervous.” SHI Quan, deputy general manager, said soldiers.

It is understood that the company’s resilient this year, while the financial crisis, not only sell very well, right now is to start two solar photovoltaic project, the province is expected to build the biggest photovoltaic cell production base.

Put into operation in October of last year, a total investment of 185 million PV Henderson, covering 200 acres, an annual output of 100 megawatts of solar photovoltaic cells, and its products are mainly exported to Europe, America, South Africa, the Middle East and other regions. Dust temperature in the company’s automated production line plant, raw materials, through the rigorous process of production and post-test and turned into a solar cell. “These solar cells are used in photovoltaic power generation.” Technical personnel Introduction. In the company’s sample room to see the roof containing four photovoltaic solar cells, after conversion of light energy into electrical energy can be used for lighting, television and other electrical equipment.

“The new energy industry is the world’s emerging industries, companies have their own industrial base, choose to invest in new energy industry is the result of market research before making a decision.” Chairman Xu Jianrong said that this year the national and provincial relevant policies, support the new energy industry, promote the use of new energy products, which will be a photovoltaic Henderson a good opportunity for development.

Henderson emphasis on technology is an important reason for the rapid development of PV. According to reports, Henderson before the start of photovoltaic project, the company that introduced the U.S. Semiconductor Technology Center in solar cell technology, and on this basis re-innovation on the digestion and absorption. Company to introduce a number of international and domestic new energy field of the top talent, formed a 21-member R & D team. With the U.S. Semiconductor Technology Center, the United States Fubon High-Tech Co., Ltd., Chinese Academy of Sciences, Fudan University and other research institutions to establish a technical cooperation platform. More recently, Henderson photovoltaic and from the introduction of four talented people from overseas, focusing on solar energy research and development of core materials.

Attach importance to technical innovation and research and development to make products more competitive, Henderson PV. SHI Quan-Bing said that in 2007 the company’s net installed capacity of solar photovoltaic cells, and at a cost of 65-80 yuan / W, is now down more than half the cost of only 30-35 yuan / watt.