Archive for February, 2010
I’m writing an essay on solar energy, and I need atleast one source from a periodical about solar energy. I can’t really find good periodicals, but I don’t have access to my library at the moment. Are there any good periodicals on solar energy that can be found online and give decent information about it so I can finish my essay? Thanks.
somewhere in this stack.
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Endex Periodicals List: Library – WSU Energy Program
This is a list of currently published energy-related periodicals (journals, magazines and newsletters) with links …. Journal of solar energy Engineering …
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solar energy | Energy & Utilities > Renewable Energy | Business …
The Oregon Public Utility Commission on Thursday decided that third-party investors in solar energy projects are allowed under … (PERIODICAL ARTICLE) …
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JHU Libraries Catalog
solar energy — Periodicals. 4. 5. Solar energy policy, 1. 6. Solar energy policy — United States. 8. 7. Solar energy policy — United States — Congresses …
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Colorado Renewable Energy Society – Web Links
The Colorado Solar Energy Industries Association (CoSEIA) publishes a bimonthly newsletter … Other Renewable Energy and Energy Efficiency Periodicals …
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Horizon Information Portal
Solar energy — Periodicals. 0. 2. Solar energy — Periodicals. 14. 3. Solar energy plants (Saline water conversion), 0. 4. Solar energy policy, 1 …
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Horizon Information Portal
Search Results. 2 titles matched: Solar energy — Periodicals. Sort by:. Select… None, Author, Format, Title, Publication Date. Limit by: …
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Solar Research Library
Solar Alert, a current awareness bulletin, lists energy related articles of interest to FSEC that have appeared in recent issues of periodicals received in …
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PHILIPPINE GOVT DISCUSSES SOLAR ENERGY OPTIONS. – Journal …
MANILA, Nov 22 Asia Pulse – With abundant sunlight all year round, the Philippine government is tapping solar energy as a viable alternative power for its …
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Horizon Information Portal
Search Results. 23 titles matched: Solar energy Periodicals. …. Dept. of Energy. Office of Conservation and Solar Energy. Office of State and Local …
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Gemstone Team: SHINE
Solar Energy Materials and Solar Cells LOCATION: EPSL Periodical Stacks CALL NUMBER: TJ810.S62471 Also available electronically through Research Port …
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I’ve looked at prices for individual solar panels, and they are pretty affordable. But that’s just the panel and I don’t know what else as for as labor and equipment it costs to install and hook up so that the panel actually powers other things like water heater or whatever. I know it probably depends on many factors but just give me an idea if you can. Thanks.
Just like beauty, costs are in the eye of the beholder. There is a great web site that you should visit before you check prices. You can plan a system that meets your needs and then price it accordingly. The Renewable Energy site for Do-It-Yourselfers. This site sells nothing so you can use it confident that you are not being steered in the wrong direction. Click on this link.
http://www.builditsolar.com/
Good luck and if you run into any dead ends or need a clarification, feel free to contact me from my profile page.
How solar energy can be produced at competitive cost for the welfare of people at large?Presently what is the status of its use in india?
Professor Andrew Blakers from The Centre for Sustainable Energy Systems at the Australian National University will today report to the Greenhouse 2000 Conference in Melbourne that photovoltaic (PV) solar energy conversion can be cost-competitive with any low-emission electricity generation technology by 2030.
His paper describes how extrapolation of the huge economic and technical gains made by photovoltaics over the last 15 years gives confidence that a dramatic shift in electricity generation technology over the next quarter-century is possible.
Worldwide photovoltaic sales are growing at 40 to 50% per year. Government research & market support for photovoltaics of around $400 billion spread over the next 25 years can deliver the technology required to eliminate electricity production as a contributor to climate change. This is a large sum of money – similar to the cost of the Iraq war – but it is dwarfed by the $23 trillion expected investment in oil exploration out to 2030 or the $24 trillion investment in PV systems required to generate half of the world’s electricity by 2040.
Professor Blakers will also describe Sliver solar cell technology, which was invented at Arthur’s Seat in Edinburgh, Scotland, by Dr Klaus Weber and Professor Blakers in 2000 while attending a conference. Origin Energy, one of the sponsors of the Greenhouse 2000 Conference, is commercialising Sliver technology in Adelaide.
Work at ANU shows that Sliver solar cell technology can achieve electricity costs below retail electricity costs within five years, with the right investment. Explosive growth in sales in the commercial and residential sector will then follow.
Professor Blakers said that Sliver solar cell technology "can go all the way."
"It’s not difficult to envisage Sliver based technology delivering electricity at a cost that matches wind energy, zero-emission coal and other clean energy technologies. No leap of faith is required; just careful engineering and adaptation of existing techniques from other industries," he said.
Dr Weber added that it is essential to eliminate carbon dioxide emissions from fossil fuel based electricity generation in order to limit climate change. The cost of doing this with advanced solar technology will be far lower than the pessimistic forecasts advanced by some analysts.
"The key to a clean energy future is the setting of clear and challenging targets and the provision of reliable, long-term support to the solar industry. The industry will respond and deliver the required technology," Dr Weber said. Recent solar and fuel cell articles
Organic solar cells will help spur viability of alternative energy October 10, 2005
Imagine being able to "paint" your roof with enough alternative energy to heat and cool your home. What if soldiers in the field could carry an energy source in a roll of plastic wrap in their backpacks?
Harvesting tornadoes as power plants; renewable wind vortex energy October 9, 2005
Engineers are working to use artificial tornadoes as a renewable energy source according to an article in last week’s issue of The Economist. Storms release a tremendous amount of energy. Hurricane Katrina, a category 4 hurricane, released enough energy to supply the world’s power needs for a year, while the typical tornado produces as much power as a large power station.
Danish researchers develop hydrogen tablet; stores hydrogen in inexpensive and safe material September 21, 2005
Scientists at the Technical University of Denmark have invented a technology which may be an important step towards the hydrogen economy: a hydrogen tablet that effectively stores hydrogen in an inexpensive and safe material. With the new hydrogen tablet, it becomes much simpler to use the environmentally-friendly energy of hydrogen. Hydrogen is a non-polluting fuel, but since it is a light gas it occupies too much volume, and it is flammable. Consequently, effective and safe storage of hydrogen has challenged researchers world-wide for almost three decades. At the Technical University of Denmark, DTU, an interdisciplinary team has developed a hydrogen tablet which enables storage and transport of hydrogen in solid form.
High oil prices make Asia pursue green energy September 9, 2005
For energy-hungry Asian governments, the answer could literally be blowing in the wind. Across the region, renewable energy such as solar, wind and geothermal power is gaining ever greater credence as a way to curb the region’s appetite for oil and cut runaway import bills. With oil prices near $70, and expected by many analysts to stay over $50 through the end of 2006, governments believe alternative energy will help keep their economies growing.
Cockroaches and rats used as batteries? August 24, 2005
An article in today’s Manilla Times highlights some local research into using common household pests as energy sources. A group of scientists from Feati University recently devised a biological fue
Does the solar energy hit the solar panels and creates electricity.. or what ?
Where can you put solar panels ?
There are now thousands of happy Earth4Energy members worldwide who are saving money every time the sun rises and every time the wind blows!
I would like to learn about solar energy and how I can make some panels for my home, of course with in a reasonable budget. My goal is to be able to run a refrigerator and fan off of battery. Any ideas out there?
If your goal is to save money, it will be hard to do that with solar electricity. You can come out ahead under some circumstances, but powering a refrigerator and a fan is an unlikely one. However, if your goal is to learn about this kind of setup, you could get a kit from (say) Harbor Freight for a few hundred dollars, which will (barely) charge a car battery over a period of a couple weeks. The energy you collect could power a fan for several hours.
You could also learn about solar electricity just by searching the web. That way, you don’t need to spend any money at all. Our solar setup is documented at
http://www.angelfire.com/ca2/roderick/solar/photovoltaic.html
That said, there are ways you can save money on energy. A solar hot water heater usually pays for itself over time, depending on where you live. You can buy a kit to retrofit your existing water heater for perhaps $2000 or so.
Also, if your refrigerator is old, just changing to a new, extremely efficient model can save 1/3, maybe even 2/3 of the energy.
I have heard a lot about solar panels and I want to know how these solar panels works and is it really possible to generate electricity using solar panels. And what is the cost of getting a solar panel installed?
Solar panel is made up of a collection of special cells known as photovoltaic cells. These cells are joined together with copper wire and each of them can to generate 5 volts of electricity. You can install as many cells as per your requirement. These solar panel generate AC power which is converted in DC by using an inverter.
Normal installation cost of a solar panel at home is around $5000 but it is true that if you have zeal to learn you can build a solar panel of your own within $200. Making a solar panel is not much difficult but you need to follow a good DIY guide to do that.
For more information visit: http://www.howtobuildasolarpanel.info
3 Examples of how solar energy is used.
solar energy is used as follows:
It heats and lights the earth, without it we would all die on a very cold rock with no plant life.
Photo voltaic cells can collect solar energy and produce an electric current.
Solar collectors, usually roof mounted, are used domestically to heat water in homes.
Some desert areas use an array of mirrors to heat water in a central tower to produce steam to turn a generator and produce electricity.
Hello from SO TX.. I would like to know if anyone out there has SOLAR PANELS on their home?
I have a 850 sq ft. house. I called Austin to a company that offers panels and installation. The cost $18,000.00, for 10 panels . The rep said we would save about 21 to 25% on our electric bill /mo. We use approximately 980 kw/mo. Our bill is around $140.00 / mo…I really don’t think that’s a good enough savings. We figure it would take 25 years to recoup our investment.
And where we live in TX it does not offer any incentives. The gov. allows you a $2000.00 tx break.
You are wasteful in your power usage. To use 980 kWh per month in such a small home is just unbelivable. Chage your lights to CFL (a 28 watt cfl is = to a 100 watt bulb) and use space heating and window A/C units. Unplug that tv set when not in use and same for other items. I found that our tv set alone uses amost 12 watts when turned off. You may say that is not much.. Well add in 4 tv sets and a couple of stereos and other items and do it for a years time. lots of waste. Our home is twice the size of yours and we only use on a heavy month about 500 kWh. With 1860 watts in solar power my last months electric bill was 19 dollars and most of that was meter fees.
18K is really about right and not bad. You will get back 2000 dollars if installed before the end of 2008 but it looks like we may be Bushed and they may not extend the tax credits.
Just have to wait for John McCain to get in office and hope he will do something about it. But McCain is running for a 3rd bush term. Hillary is not going to make it in to office an every time Obama gets under pressure he gets so scared he starts stuttering. So he will just get walked on by big oil and big money. So better do it now while you can get something back.
Just to clear something up about the cost.. If you rent power you have nothing in 30 years but if you buy a system you have a system in 30 years.
As far as new lower priced solar modules.. BS!!! Big time
BS!!!
If they can make a 3000 watt solar module for 1 cent they can sell it for the current market price. So it would take a FOOL to drop the prices. So don’t waste your time setting on your thumb waiting for this great lower price.
Ask Evergreen Solar if they lowered prices when the used OUR TAX DOLLARS to find a new way to make their panels. Well they found a cheaper way and did it and charge the same as anyone else. But that don’t stop them from braging. If they can get your money and don’t take it they woudl be fools.. Would you drop your price if people would pay the higher price? Plus someone would by them out and bring the prices back up anyway..
How does the angle the light makes (Ex. the angle of the sun’s rays) with the surface affect solar energy?
here the experiment
The inside of a shoe box was insulated using Styrofoam and a thermometer was placed through a hole inside the box. Two absorbing surfaces were made from aluminum foil. The upper surface of one sheet was painted black and the other left shiny. The following tests were then carried out.
A sheet of shiny aluminum was placed in the bottom of the box. The top of the box was covered with glass and the temperature of the air inside the box was recorded. The lamp was then turned on and the temperature was recorded after 3 minute.
The procedure was repeated, this time using the blackened aluminum as the absorbing surface. Three set of data were collected. One test was done with the glass cover, one without the glass cover and the third with a glass cover but at an angle of 45º.
The most efficient angle for transfer of solar energy is 90 degrees so there is minimal immediate loss of energy to reflection. The further away the angle of the incoming rays of light from a line perpendicular to the surface of the collector, the more reflection of the light there will be and the less energy will be collected (comparatively).
Following the anvil on a cable in space question. why not attach a couple of wires to a load of solar panels floating in orbit? solving all our energy problem needs. or cover the sahara with solar panels. aparts from a few scorpions and nomads who’s it gonna hurt?
1. Solar panels are extremely inefficient, on the order of only 1-2% efficient.
2. The cost is so high, it is not worth it. The panels cost far more than any "free" electricity.
3. The cable from space would be too heavy, and air resistance would bring the solar panels down.
Instead, use mirrors to concentrate the sunlight, and use it to drive a steam turbine. The efficiency can easily be over 90% if done properly, yielding about 1,000 watts per square meter at high noon at the equator. A mere 20 square kilometers would provide about 360 megawatts. and 2/3 of the energy can be stored for evenings and cloudy days.