What Are Green Energy Sources
June 3, 2009 by
Filed under General
Many homeowners today are looking into integrating green energy sources for developing more energy efficient homes and businesses. A green energy source is power generated through renewable resources, such as the sun, wind and water. The other benefit of green energy sources is their low contribution to global warming, pollution and other environmental issues.
The most popular of green energy sources is the sun. Energy captured from the sun is called solar energy. Of the green energy sources, solar energy is the most popular because it offers multiple options for use. It is possible to harness electrical energy from the sun using solar panels consisting of photovoltaic cells that convert energy from the sun into electricity you can use in your home or business. There are also solar hot water collectors that use the heat of the sun to produce hot water. These solar green energy sources are readily available and increasing in popularity as most homes and businesses can have them mounted on their roof and they can take advantage of lowered utility costs.
The most efficient of green energy sources is wind. Wind has been used to power water pumps for centuries, but has grown in popularity as a way to supplement home and business electricity needs. Wind is the safest and cleanest of the green energy sources as it produces no pollutants and does not contribute to global warming. Wind energy is harnessed by erecting a turbine that spins in the breeze generating electricity. Unlike the sun, which can be found almost anywhere, in order to utilize wind as a green energy source, you must live in an area where wind is readily available.
Water is also a viable participant of green energy sources. Water is less widely used as a green energy source for homes, as not all homes have an available stream to produce the needed electricity. The Amish have used water to power entire shops using conveyer belt systems, so it is an old practice, but it is still being used successfully today. As with solar and wind energy, energy harnessed from moving water is almost completely pollutant free and is generated from a renewable resource.
Green energy sources are available for use to combat global warming, our dependence on fossil fuels and to lower our monthly budget. Investing in green energy sources for your home and business needs can add dollars to your wallet and years to the life of our Earth.
Concentrated solar power could make up 25% of world’s energy
May 28, 2009 by
Filed under General

A new study by Greenpeace International, the European Solar Thermal Electricity Association and the International Energy Agency considers three different potential scenarios for concentrated solar power’s (CSP) growth over the next few decades. In the third and most aggressive scenario, we could see CSP generating 25 percent of the world’s electricity by 2050.
The scenario includes increased investment in the technology to $29 billion a year by 2015 and $243 billion a year by 2050. These investments would lead to installed CSP plant capacity of 1,500 GW by 2050. The second scenario saw more modest investment increases and a total capacity of 830 GW by 2050, still an impressive 12 percent of the world’s energy needs. The first scenario assumed no investment increases at all, with CSP making up only 0.2 percent of the world’s energy.
The technology has been taking off recently. Spain alone has 50 projects in the works and will be generating 2 GW from CSP by 2015. Worldwide, CSP currently makes up 436 MW and investments in the technology will reach about $2.8 billion this year. Based on current global plans, by 2017, close to 20 GW of CSP capacity will be installed. While the dramatic investment increases that the study explores are very unlikely, it’s interesting to see the full potential of the technology and maybe it will lead to at least a modest increase in investment and development.
The technology is best fitted for desert regions and the entire sun-belt around the equator, including parts of southern U.S., North Africa, Mexico, China and India could make great use of CSP.
The full study is available here (PDF).
via Guardian
The hydrogen road rally hits the West Coast
May 28, 2009 by
Filed under General
The FCX Clarity at the hydrogen tour kickoff
last year in Maine. (Photo: Jim Motavalli)
Although hydrogen just took a hit Energy Secretary Steven Chu cut $100 million in transportation-related fuel-cell funding from the 2010 budget that hasn’t meant flat tires for the Hydrogen Road Rally, which kicked off yesterday in Chula Vista, California, on its way to Vancouver, British Columbia. The rally lasts until June 3, and you can follow its progress here.
I was at the kickoff of last year’s rally, in Portland, Maine. I chatted with Senator Olympia Snowe (R-ME), who didn’t know much about hydrogen but seemed enthusiastic about it all and sat behind the wheel of the Honda FCX Clarity. Fuel-cell cars are “consistent with Maines environmental leadership, she said. We are a can-do state.
Among the hydrogen-powered vehicles taking part are the aforementioned Honda, Hyundai Tucson FCEV, Daimler F-Cell, Chevy Equinox, Kia Borrego FCEV, Nissan X-Trail and the Toyota FCHV Highlander. Note that the Chevy Equinox is the only American participant. Both the Department of Energy and the Department of Transportation were sponsors of last year’s much longer tour, but are absent from this one. Is the U.S. falling behind in the hydrogen race? How about falling off the map completely?
To be fair, hydrogen-fueled cars haven’t taken off as battery vehicles have, and the simple explanation is a lack of infrastructure. There are only 65 hydrogen stations in North America, which is why all the cars on the road rally are relying on mobile refueling stations. At last year’s rally, Roy Kim of the California Fuel Cell Partnership told me there were 61 stations, so we have a net gain of four.
California Governor Arnold Schwarzenegger was supposed to have his hydrogen highway in place, but the state’s budget cuts have gotten in the way. The goal is to have 40 stations built in four years. Schwarzenegger showed up at a West Los Angeles stop on the tour yesterday and a reporter asked him, “Are you satisfied with the number of hydrogen stations and vehicles we have today?”
The governator replied, “I wouldn’t be here if I was.I’m hungry!I want more cars, more stations, and not just in California.I think Washington has to get with it…We will find the partners and we will build the stations. We always march forward.”
The U.S. government is definitely marching backwards compared to the Europeans and Japanese, who offer large hydrogen subsidies. Given their realities, no Big Three automaker has committed to actually selling a fuel-cell car.
Daimler has benefited from those funds, and recently said it would be getting fuel-cell vehicles to customers as early as next year, with what it calls “marketability” as early as 2015. Its B-Class F-Cell, with a a stack that is 40% smaller (but 30% more powerful) than the one on the A-Class in the tour, will appear at the end of 2009, with 250-mile range. Toyota, not to be outdone, has also pledged to have a commercially viable fuel-cell car on the road in late 2014.
More from The Daily Green
- The 10 Most Fuel-Efficient Cars of 2009
- Which of These Cars Will Get 100 MPG?
- Hottest New Cars Prove Small Is Beautiful
- Six Safe Green Investments
- Electric Bikes: The Fun, Cheap Way to Get Around
Reprinted with permission of Hearst Communications, Inc
Why Choose A Wind Turbine For Your Home Energy Requirements?
May 28, 2009 by greenway
Filed under Alternative Energy
As energy resources in the earth become more valuable and (as it would seem) in ever more short supply, the race is on to find sources of renewable energy, both for domestic and industrial use. For the purposes of this article, I will consider the supply of power for an average-sized family home. More and more families are turning to renewable sources of energy, such as home wind power from a wind turbine. It is not very difficult to set up such a system, and it will pay for itself many times over.
There is hardly a place on earth that does not have enough wind activity to keep a home-built turbine whirring away. The great thing about wind energy is that its free! Like solar power and of course water which powers various hydro-electric power stations, it is something that occurs naturally. Its available all the time, waiting to be harnessed, to be tapped into.
It is possible to build such a system for $200 or less. With a little know-how, and a reasonably good DIY ability, you could conceivably build such a system over the course of a weekend. And the materials you will need should be available in your local hardware store.
Its no wonder really, that so many people are turning to this source of energy. It is very satisfying to be able to produce your own home made wind power. You could even produce more than you need then you could sell it back to the electricity company. That would be sweet! It would be nice to see the electricity meter going backward for a change.
There are many arguments in favour of building such a system - one thing I like about wind power is that its so clean there is no smoke, no waste material to worry about. And you can store the energy you produce in batteries, which can be had for no charge.
And of course the savings that can be achieved are one of the main attractions for a home wind system. It is estimated that it would reduce your energy bill by 80% - or even eliminate it completely. In times of belt-tightening , this is one of the main attractions of a system like this. And once it is up and running, it will not need a lot of maintenance, and should not cost much to run.
Its already being used successfully by thousands and Im sure the trend will continue. Another good thing about producing home wind power, is that it is of course helping in the fight against global warming, and reducing ones carbon footprint.
Wind power has been around for a long time and its a proven system of power supply . It has now become available for the average family and I believe that wind and other sources of alternative energy will be used more and more by people in our neighbourhood, as people realise its many benefits.
Some of the best home energy products available online are found at Home Wind Energy Review and a favourite of mine is Earth 4 Energy.
Get useful points of view about parenting classes - your individual knowledge pack.
Less carbon, more jobs
March 10, 2009 by
Filed under General

America is finally on the cusp of enacting a federal law to cap global warming pollution and the focus on how it will affect our economy has never been greater. When President Obama last week called on Congress to send him such a bill, he underscored the economic necessity of creating new jobs by reinventing our energy supply. Not surprisingly, longtime opponents of taking action argued that a cap will hurt business and consumers.
But the most important piece of this debate has largely been overlooked. Right now, tens of thousands of workers in hundreds of communities are poised to benefit from a nationwide cap on carbon emissions and they’re right in our backyards.
When America caps its carbon emissions, manufacturing companies from coal country to the rust belt and beyond will see a surge of customers looking to cut pollution, reduce energy use and expand their use of renewables like wind and solar.
These are real companies with real employees in real American communities. And it’s time for their stories to be heard.
Take Dwayne Esterline of Eaton Rapids, Michigan. Dwayne spent 15 years manufacturing auto parts for everyone from General Motors to Daimler Chrysler. In June 2008, with the auto industry struggling, he took a chance and joined Dowding Industries. Dowding has been in Michigan for over 40 years, and they’d recently begun manufacturing large-scale machine parts for wind turbines.
Dwayne’s manufacturing background was a perfect fit, and he sees his story as a model for workers across the country.
“I look at the future of the wind industry, and this is a positive place to be,” he says. “It’s nice to be a part of something that’s growing and creating jobs. I think people in communities like mine need to reinvent themselves and apply their skills to the green energy revolution.”
LessCarbonMoreJobs.org, a new resource created by Environmental Defense Fund, was designed to give a voice to stories like Dwayne’s. Users can search by city, state, Congressional district and media market to find companies like Dowding Industries in twelve key manufacturing states Ohio, Pennsylvania, Michigan, Indiana, Tennessee, Virginia, Georgia, Missouri, New Hampshire, Florida, Colorado and Arkansas.
We chose these states because their elected representatives in Washington will play a key role in deciding whether we place a cap on carbon this year, and because their workers are ready and waiting for economic opportunities.
Bill Keith of St. John, Indiana, operates a company that employs 25 of those workers at its main facility and many more in its local and regional supply chain. A few years ago Bill, who co-owned a roofing company with his brother, invented a solar-powered attic fan that vents hot air and reduces energy bills. Demand took off quickly, and today Bill’s fans are installed in the Honolulu airport, the Michigan governor’s mansion and the visitors’ centers at several national parks.
Now Bill runs a company called SunRise Solar that builds and sells his fans, and he like entrepreneurs across the heartland is waiting for the customers that will come knocking when America passes a carbon cap and industries big and small look to lower their energy consumption.
“We’ve been greeted with overwhelming support and demand,” Bill says. “But we know there’s much more to do. We’re hoping Congress finally puts the economy on a path to embrace these technologies. My operation is ready to grow, and I know others companies like mine are ready too.”
Of course, many companies in this sector are struggling in the midst of the recession, and they’re a part of LessCarbonMoreJobs.org too. Firms that saw rapid growth and hired quickly are now hoping for something to reinvigorate demand as they try to avoid layoffs. The clock is ticking and these companies don’t have much time to lose.
Short-term steps, like the funding for efficiency and renewables in the recent stimulus bill, will help. But nothing will compare to the flood of private investment in solutions and the companies and workers to produce them that a cap on carbon emissions will unleash.
The science tells us we have to act now to fight climate change, and the thousands of business owners and workers on LessCarbonMoreJobs.org tell us that unless we move quickly, we risk losing the progress made in so many manufacturing communities. Let’s hope our leaders see the opportunity at hand, and embrace it.
This was originally posted on Huffington Post.
Jackie Roberts is Director of Sustainable Technologies at the Environmental Defense Fund.
Do It Yourself Kit - Building Your Own Solar Panels/Wind Power Generator
March 4, 2009 by
Filed under Green Homes
With the World slowly and surely moving into a dreaded energy crisis, it is important for us to now think of other sources of energy and reduce our dependency on non-renewable sources. The so-called non-renewable sources are becoming extinct. Some reports suggest that the present Oil reserves will deplete by 2050 at the present rate of consumption.
So, it is high time that we think of other sources of energy like renewable sources which as the name itself suggests are RENEWABLE.
There are most importantly 3 sources of renewable energy namely - 1. Hydro or Water 2. Solar or the Sun power 3. Wind Power. Lets take each individually
1. Hydro This type of energy is produced by building huge hydro electric generating stations whereby water which is stored in reservoirs are let out and pass them through generators to create electricity. This type of generating electricity is one of the oldest and is also capital intensive meaning it requires huge investments.
2. Solar / Sun Power - This is generating electricity by using the power of the Sun. As you know, Sun power is unlimited and is available in abundancy and all the more important it is FREE. We are blessed with this power which is being wasted without harnessing it. We can generate electricity by building Solar Panels and capturing the Solar Power in the Panels which are made up of Solar cells also known as Photovoltaic Cells.
3. Wind Power - This is another type of power which is available in abundancy and again is FREE. Electricity can be generated by building Windmills which rotate when there is wind blowing and generate electricity through a generator.
Nowadays, the Technology is so improved that we can build our own Solar Panels or Wind Power Generators at home with materials available in our local hardware stores to generate electricity. This way we can eliminate or reduce our Electricity bill.
For more information on this please visit www.smash-marketing.COM
Courtesy SHARATH HARDIKAR
https://www.amazines.com/article_detail.cfm/752391?articleid=752391
Reduce the Cost of Keeping Your Home Warm - Reduce the Cost to the Environment
March 4, 2009 by
Filed under Green Homes
We all like to keep warm in our homes while the weather does its worst outside, but we are being made more and more aware that while we are keeping warm inside we are damaging the environment outside. In this day and age there are lots of environmentally friendly products and sustainable heat sources, solar power, wind power etc. Whilst we all know that these are fantastic was to help reduce the damage we are doing environmentally, not everyone wants to install solar panels or change boilers in fact any extra expense.
There is a way that everyone can help reduce the impact on the environment whilst still keeping warm. And the best part of all is that the more you do to make your home energy efficient the less your heating bills will be. Therefore helping to save the environment helps to save you money.
Small changes in your home can have a big impact. Turning down room thermostats, not leaving appliances on standby and just simply closing doors all makes a huge difference.
Doors and windows can loose up to 60% of household heat. Tuck your curtains behind your radiator to make the heat stay in the room rather than straight out the window. As mentioned earlier, keep doors closed. Many doors will have a gap at the bottom, heat can pour out through the gap and drafts push into the room. If you do not have a draft excluder then rolled up towels will do just as well.
Starting from the top of the house the biggest difference can be made by insulating your loft. One of the most important things you can do to save energy in your home is to install or improve your insulation which keeps the heat inside your home.
The recommended level of insulation in the loft is 270mm and this could save you over 100 on heating costs and about one tonne of co2 (carbon dioxide). There are two traditional types of loft insulation; loose fill or fibreglass and mineral fibre on a roll.
Change to low-energy light bulbs. These are now much cheaper to purchase than they used to be and whilst they will help to save on your energy bills they will also last far longer than a conventional bulb. They are now even available for different socket types and in a range of styles. Why not replace them one by one to make the change less of an expense. Remember to turn the lights off when you leave the room. If you have a hot water cylinder, make sure it has a cylinder jacket and that this is fitted properly. This could save over 70% of the heat lost. There really is no need to have this cylinder kept full of hot water all day set the timer for when the hot water will be needed. Reducing the water temperature is another simple change you could make.
Insulating accessible and exposed hot water pipes will help towards keeping bills down.
Think about when you need the central heating on set a timer accordingly.
Thermostatic radiator valves can be fitted to a radiator and these actually turn the radiator off when the room reaches a desired and preset temperature. These are fantastic for rooms that tend to overheat whilst the rest of the house is cooler.
There may be rooms in your house that do not need to he heated turn the radiators off.
There are now many energy efficient central heating boilers available. If you do not want to replace your boiler you could clean the system. Keeping your existing heating system running efficiently will also help to save on your bills. Make sure you understand your system and treat it accordingly. If you are unsure seek professional help.
Underfloor heating is about 30% cheaper to run than traditional central heating, and whilst this may not be an option for your whole house is may be an idea for your kitchen or an added luxury in your bathroom.
If you have a chimney in your home a small door (register plate) can be fitted to close the chimney when the fire is not in use.
Making sure your home is energy efficient is not something to be taken lightly. The cost of heating our homes is spiralling. By being energy efficient is very good for the environment but it is also good for you by keeping the cost of heating you home to a minimum.
Courtesy: Claire Hamill
https://www.amazines.com/article_detail.cfm/431779?articleid=431779
How To Build Your Own Solar Panel
March 3, 2009 by
Filed under Alternative Energy, Feature, Green Homes
With precious energy resources like oil and gas dwindling fast and global warming rapidly changing climates across this planet of ours, more and more people are looking to renewable energies for reducing their carbon footprint. However, even the most environmentally conscious person cannot accomplish this task without the proper financial resources. Having a solar energy system installed in your home or business can cost in the thousands. Because of this, many individuals are looking at more cost effective methods to have this done.
You can certainly build your own solar panel, however these panels are small and do not produce the necessary electricity to power more than a simple lamp, and only for a couple of minutes at best. The most effective way to produce power from the sun, when you cant afford to hire the professionals, would be with a solar panel kit. These build your own solar panel kits come with everything you need to successfully build your own solar panel in the comfort of your living roomthe garage may be a wiser choice.
Surprisingly, the build your own solar panel kits are not difficult at all to find. With large companies like GE manufacturing these kits in bulk quantities, the build your own solar panel sets are extremely affordable and offer much quicker returns on your investment than purchasing and having a solar energy system professionally installed. In general the instructions are easy to follow, even for teens and childrenyoull be on your way to having your own solar power system in no time.
If youre looking to build your own solar panel there are numerous resources and guides available to help you through the process. By involving the whole family in the building process, every one will learn how a solar power system works and exactly how the components are put together. Also, when you build your own solar panel you are giving yourself the knowledge to expand your system on your own, without calling back the installers, and the ability to adapt your current system to meet any new design needs.
Making the choice to build your own solar panel is a great investment for your future and the worlds future. Start making your own power at home and take advantage of this great way to educate yourself while saving money and helping the environment and learn how to build your own solar panel today.
About The Author: John Lynch is a global warming advocate and has published hundreds of articles on renewable energies.
To get a Step-by-step guide on how to make your own energy for 100$ or less, John recommends you visit www.HomeMadeEnergy.org
Also check out our store for great deals on solar panels and equipment at http://www.mygreenway.com/?p=172
Should We Harvest A Natural Resource: Wind Power?
March 3, 2009 by
Filed under Alternative Energy, Feature, Green Planet
In todays economy, with increasing use of electricity and natural resources, the possibility of a low-cost, inexhaustible and dependable energy source is seen by consumers as a breath of fresh air in a stale environment. Thats where wind energy comes in. According to the Department of Energy, contemporary wind turbines can convert winds in most U.S. states and coastal waters into certain, clean electricity. While wind today supplies only a small percentage of our national electricity demands, it is a tremendous energy resource and is the fastest-growing energy supply technology available.
There are solutions to the worlds power problems that can be simply employed and evolved to their fullest and most efficient for future use. Solar power is beginning to make excellent headway in technology and application as are other alternative renewable energy solutions. One of these choices is wind turbine energy, a source of uninterrupted clean energy that is actually making great advancement in cutting coal power demand where it is being utilized. The only negative here is the 24 hour need for wind flow.
The basics of electricity production through wind farms are pretty simple. Highly efficient wind turbines are situated in positions where they will receive the maximum amount of wind energy. Regardless, the wind turns the blades as it passes, which turns a generator within the turbine. The turning motion converts the wind energy into electricity when the generator cranks, and this power is then fed into a utility company power grid.
A wind turbine used for making electrical energy is not all that difficult a thing to handle. It is very much like the water wheels that past generations used to grind their grain to produce flour. The only difference is that instead of using water to turn the water wheel wind is used. The wind makes the blades of the wheel turn which; with the help of some gears, magnets and resistance creates electricity. As the speed of the wind turning the turbines increases the amount of power the turbine produces increases as well. Unfortunately, at the moment the energy generated from the turbine is difficult to store in batteries so there is a need for back-up systems but, for the most part, it is a fairly efficient system.
Location - Wind energy is the fastest growing source of power of any of the inexhaustible energy sources and technologies. In areas where winds are strong, inexhaustible wind energy is a smart choice for providing power to homes and businesses. The point about not being able to store the generated energy in batteries for later use puts quite a bit of emphasis on where the wind turbines are situated. Since the energy that is generated demands to be input into the power grid and used right away, the turbines need to be based in a place where the wind is always blowing. One might think, well that shouldnt be that difficult. The turbine needs to be situated where there is a constant and steady wind most of the time, but it also demands to be based in a place where quite a few turbines can be located. The goal is to find locations where wind exists as frequently as possible.
Put in realistic terms, ideal spots are in areas where ground variation occurs as wind is produced when different surface areas heat up at different rates. As each surface heats up, the air rises and cooler air rushes in to replace it. Thus, we have wind. Given this situation, ideal positions for wind farms are often along shorelines or in valleys funnelling winds from the shore.
The current issue is that one turbine generates quite a bit of energy, but not enough energy to make it economically feasible. A considerable number of turbines need to be in place to make this happen. There are many places around the world where this is possible, but the overall concept is regional in nature. In other words, the power made in an area, stays in that area to some degree. This is not generally a bad thing since the area gets some benefit as an offset to the trouble of hosting the turbines and putting up with endless wind. Localities can derive a nice chunk of their power from the wind turbines which diminishes the need to use coal, oil or gas power as in other places.
On an individual basis, even if you dont live in a windy area, you can still supplement your current electricity supply by employing inexhaustible wind energy. The best part is by using do-it-yourself guides; even the least skilled handymen can build their own windmills and start using inexhaustible wind energy to lower their electricity bills each month. However, if you do live in an especially windy area you can feasibly generate an abundance of electricity from renewable wind energy systems.
Smaller wind systems are being used to generate on-site power and provide additional power to local utilities, and the market is expanding at over 20 percent annually. However, wind power represents more than just competitive electricity. It offers: rural economic profits from project development; a hedge against changeable natural gas prices and planned use of imported liquid natural gas; cost-effective clean air compliance option for businesses and communities; strong future partner for other domestic power industries including coal and nuclear; and a inexhaustible option for producing hydrogen for transportation fuels. Wind energy is a home-grown energy source that can contribute to national energy security by shrinking a countries dependence on oil and natural gas-most of which are imported from other countries. In addition, unlike most other electricity sources, wind turbines dont consume water.
Construct It But Not Near Me - The unique problem of people not desiring to look up at or listen to wind turbines all day every day has become a bit of an issue. Where the issue is likely to be decided is in more urban areas where the use of wind turbines is just commencing to creep in. As vocal suburbanites hear about suggested turbine wind farms they all-of-a-sudden decide they are fine with wind power but dont want to look at multiple turbines within their sight on a mountain top, coastal shoreline or in their virtual back yard.
People may become vocal about not desiring to see or hear wind turbines on a daily basis but they need to picture that alternative power sources are here to stay. They had better think hard about their needs and how they are going to come to terms with the issue on a personal basis. Power up with solar, wind, water or nuclear because preferring a source sooner rather than later may be the best way to go. It is definitely worthwhile to learn more about inexhaustible wind energy. By building your own wind turbines you can add needed dollars to your pocket and help the environment at the same time. Inexhaustible wind energy. Free power from the wind. The future for our planet and our economy. Noel is an experienced economist, sociologist and marketer. He has an interest in renewable and solar energy and our environment and the social and economic costs absorbed by our society to change to renewable energy. If you have similar feelings and are motivated to research the matter further then visit my blog at http://homesolarsystemguide.com
Courtesy https://www.amazines.com/Environment/article_detail.cfm/750591?articleid=750591
California to get world’s largest solar project
February 12, 2009 by
Filed under Alternative Energy, General
Despite the onslaught of a global recession the exponential increase in renewable energy continues! Good thing, or else this job would get, like, boring, and I’d hate to take a week off.
The desert outside of Los Angeles is about to get a system of solar thermal plants that will, at maximum output, produce 1.3 gigawatts of power. Yes, that is more even than large nuclear plants. And please…while commenting, do our best to avoid Back to the Future jokes. This is officially the world’s largest planned solar project (at least for a while) beating out China’s 1 GW PV plant that was announced this December.
The plant is a joint project of Southern California Edison, the utility that serves the area, and Brightsource, the company who will be building the power plant. The power will be produced by focusing light from a large area with mirrors onto a tower. The heat will then be used to boil water and the steam will turn a turbine, just like a traditional coal or nuclear power plant.
The main advantage of these “solar thermal” power plants over photovoltaic power plants is that the technology is very simple, and thus cheaper. They aren’t as efficient per acre, but they’re a lot cheaper to build. Solar thermal plants have been shown to, over their lifetimes, be an even better investment than coal-fired power plants, even without government subsidies, so the resurgence in their construction should come as no surprise.
There will be seven of these towers built, each producing between 100 and 300 megawatts of electricity. The first will be finished in 2013 with the rest of the seven to follow.
While BrightSource is emerging as an early leader with more than two gigawatts of capacity planned for construction already, other companies are also actively pursuing the space, and creating a bit of a gold-rush for the world’s desert lands. It’s good news for us all, and I’m looking forward to watching these massive plants get themselves online!
Via WIRED



