Tougher Rules Urged for Offshore Drilling
By JOHN M. BRODER Published: January 11, 2011
Releasing its final report, the commission found that the Deepwater Horizon explosion and subsequent oil spill arose from a preventable series of corporate and regulatory failures. It warned that unless industry practices and government regulation improved, another such accident was inevitable.
For the rest of the story go here http://www.nytimes.com/2011/01/12/science/earth/12spill.html?_r=1&ref=earth
The Latest in Renewable Energy News
From Renewable Energy News....
What's Behind Record-Breaking Solar Cell Efficiencies, Part 1
In solar, it's hard to go a month without hearing news about conversion efficiencies. In September, for example, Oerlikon Solar and its partner, Corning, said they broke the world efficiency record for a lab-created tandem-junction amorphous-silicon cell. The cell, which was tested by the U.S. National Renewable Energy Laboratory, delivered 11.9 percent stabilized efficiency. Full Story »
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Social responsibility should be practiced by all
What's Behind Record-Breaking Solar Cell Efficiencies, Part 1
In solar, it's hard to go a month without hearing news about conversion efficiencies. In September, for example, Oerlikon Solar and its partner, Corning, said they broke the world efficiency record for a lab-created tandem-junction amorphous-silicon cell. The cell, which was tested by the U.S. National Renewable Energy Laboratory, delivered 11.9 percent stabilized efficiency. Full Story »
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Social responsibility should be practiced by all
The Definition of Renewable Energy - Present and Future Outlooks
By M.S. Rochell
The definition of renewable energy is dependent on the term renewable. An energy source that naturally replenishes is considered renewable. Unlike fossil fuels which take millions of years to form, wind, rain, water and sunlight are self contained and naturally replenishing, thus renewable.
Many people think solar energy, the most popular form of renewable energy, is a new concept. The truth is solar panels were used as far back as the 1920s to heat water in lieu of more expensive electrical heating systems.
Renewable Energy Past to Present
When fossil fuels were unearthed, much of the previous solar energy use was abandoned for the cheaper, more reliable fossil fuels. As these fuels began to have an impact on the environment and their levels diminished, a resurgence of the renewable energy sources occurred.
Today, wind farms, solar electrical plants and solar thermal plants are used to power entire towns and cities.
Alternative energy communities are also popping up throughout the world with Canada being the first country to boast of an entire community based on solar energy. Technology is constantly changing and the future definition of renewable energy is also changing.
The Future of Renewable Energy
Everything that moves creates energy. This fact applies to wind, water and sunlight which are the most commonly used renewable energy sources. However, the movement of man is also being viewed as a source of renewable energy.
Speed bumps that harvest kinetic energy are one concept currently being tested by New Energy Technologies. The "bumps" are actually an inversion of the typical motion inhibitors. These flat panels sink slightly into the ground when a car passes over. The bump is created by the difference in height between the road and the lowered panel.
Under the panel, 2000 watts of instant energy is created for every passing car. With 1000 cars passing over the speed bump every day, 2,000,000 watts or 2000 kilowatts are produced every day.
Over the course of a month, that number jumps to 60,000 kilowatts. That is enough electricity to power 60 average homes for an entire month!
This type of kinetic energy harvesting is not limited to speed bumps. In Israel, roadways are being tested that collect small amounts of energy as cars pass over the special roadway surface.
The amount of energy is small, at an average of 400 kilowatts per kilometer (0.6 miles). While this does not seem like a lot of energy, if the entire United States interstate system were converted to kinetic energy harvesting material, the 75,000 km would produce 30,000,000 kilowatts of power. That is one very new and innovative definition of renewable energy!
The world is just beginning to see the potential kinetic energy has as a renewable source of electricity. Tokyo is installing flooring that harvests energy from daily subway visitors. Dance clubs are utilizing the energy created from movement on the floor to harvest energy.
Even asphalt is being considered as a prime material for harvesting thermal energy in desert climates where roadways can reach temperatures hot enough to fry an egg.
There are an abundant supply of new and innovative renewable energy solutions available to help us to transition our world to more sustainable and environmentally friendly solutions. Even today there are many new technologies that can help us to heat our homes, recharge our batteries and light our yards using clean, green energy sources.
M.S. Rochell is the editor of http://www.Go-Green-Solar-Energy.com which offers education and inspiration on the benefits of going green with solar energy, DIY solar power, and affordable solar energy solutions. Visit for more on the definition of renewable energy, and to receive our free Affordable Solar eBooks.
Article Source: http://EzineArticles.com/?expert=M.S._Rochell
The definition of renewable energy is dependent on the term renewable. An energy source that naturally replenishes is considered renewable. Unlike fossil fuels which take millions of years to form, wind, rain, water and sunlight are self contained and naturally replenishing, thus renewable.
Many people think solar energy, the most popular form of renewable energy, is a new concept. The truth is solar panels were used as far back as the 1920s to heat water in lieu of more expensive electrical heating systems.
Renewable Energy Past to Present
When fossil fuels were unearthed, much of the previous solar energy use was abandoned for the cheaper, more reliable fossil fuels. As these fuels began to have an impact on the environment and their levels diminished, a resurgence of the renewable energy sources occurred.
Today, wind farms, solar electrical plants and solar thermal plants are used to power entire towns and cities.
Alternative energy communities are also popping up throughout the world with Canada being the first country to boast of an entire community based on solar energy. Technology is constantly changing and the future definition of renewable energy is also changing.
The Future of Renewable Energy
Everything that moves creates energy. This fact applies to wind, water and sunlight which are the most commonly used renewable energy sources. However, the movement of man is also being viewed as a source of renewable energy.
Speed bumps that harvest kinetic energy are one concept currently being tested by New Energy Technologies. The "bumps" are actually an inversion of the typical motion inhibitors. These flat panels sink slightly into the ground when a car passes over. The bump is created by the difference in height between the road and the lowered panel.
Under the panel, 2000 watts of instant energy is created for every passing car. With 1000 cars passing over the speed bump every day, 2,000,000 watts or 2000 kilowatts are produced every day.
Over the course of a month, that number jumps to 60,000 kilowatts. That is enough electricity to power 60 average homes for an entire month!
This type of kinetic energy harvesting is not limited to speed bumps. In Israel, roadways are being tested that collect small amounts of energy as cars pass over the special roadway surface.
The amount of energy is small, at an average of 400 kilowatts per kilometer (0.6 miles). While this does not seem like a lot of energy, if the entire United States interstate system were converted to kinetic energy harvesting material, the 75,000 km would produce 30,000,000 kilowatts of power. That is one very new and innovative definition of renewable energy!
The world is just beginning to see the potential kinetic energy has as a renewable source of electricity. Tokyo is installing flooring that harvests energy from daily subway visitors. Dance clubs are utilizing the energy created from movement on the floor to harvest energy.
Even asphalt is being considered as a prime material for harvesting thermal energy in desert climates where roadways can reach temperatures hot enough to fry an egg.
There are an abundant supply of new and innovative renewable energy solutions available to help us to transition our world to more sustainable and environmentally friendly solutions. Even today there are many new technologies that can help us to heat our homes, recharge our batteries and light our yards using clean, green energy sources.
M.S. Rochell is the editor of http://www.Go-Green-Solar-Energy.com which offers education and inspiration on the benefits of going green with solar energy, DIY solar power, and affordable solar energy solutions. Visit for more on the definition of renewable energy, and to receive our free Affordable Solar eBooks.
Article Source: http://EzineArticles.com/?expert=M.S._Rochell
From Green Energy News: THE PUSH TO ELECTRIC DRIVE: A WORK IN PROGRESS
The editors of this blog strongly disagree with the following post:
The following article is found in Green Energy News
July 18, 2010 – Vol.15 No.18
THE PUSH TO ELECTRIC DRIVE: A WORK IN PROGRESS
by Bruce Mulliken, Green Energy News
Spencer Abraham, U.S. Secretary of Energy in George Bush’s first term, says this regarding setting ground rules for energy technology investments in his recently released book, “Light’s Out! Ten Myths About (And Real Solutions To) America’s Energy Crisis:”
“First, there should be no congressional earmarking of federal energy research funds. The Department of Energy should be free to choose funding objectives using its expert panels and advisors rather than ceding decisions to the interests of legislators.
Second, once a priority is chosen, we should stick with it. There should be no flavor of the month oscillations. Research is a long-term undertaking and we should treat it as such.”
He goes on to say that government funding should team with private investment to stretch research dollars. And that Government, including Congress should stay out of the business of picking specific winners and losers.
For the rest of the article click here
The following article is found in Green Energy News
July 18, 2010 – Vol.15 No.18
THE PUSH TO ELECTRIC DRIVE: A WORK IN PROGRESS
by Bruce Mulliken, Green Energy News
Spencer Abraham, U.S. Secretary of Energy in George Bush’s first term, says this regarding setting ground rules for energy technology investments in his recently released book, “Light’s Out! Ten Myths About (And Real Solutions To) America’s Energy Crisis:”
“First, there should be no congressional earmarking of federal energy research funds. The Department of Energy should be free to choose funding objectives using its expert panels and advisors rather than ceding decisions to the interests of legislators.
Second, once a priority is chosen, we should stick with it. There should be no flavor of the month oscillations. Research is a long-term undertaking and we should treat it as such.”
He goes on to say that government funding should team with private investment to stretch research dollars. And that Government, including Congress should stay out of the business of picking specific winners and losers.
For the rest of the article click here
What is Green Energy? Green energy is energy that is produced so that it has less of a negative impact on our environment than other energy sources that we use such as the fossil fuels of coal and oil. Greener types of energy that are used are solar, wind, hydro-electric, and geo-thermal.
Here are the top ten reasons to convert to "greener" energy.
Stop strip mining for coal. Strip mining for coal is an environmental travesty. Entire tops of mountains and surrounding countryside are left standing bare and naked because of strip mining.
Stop drilling for oil. If we we using more green energy we wouldn't have to drill for so much more, and all the danger that entails like exploding oil rigs and oil wells that leak millions of barrels of fuel oil into our oceans.
Stop spilling the oil. All the oil that is spilled in drilling and transportation is tremendously damaging to our oceans and shorelines. Also, oil spills kill numerous seabirds and other sea-life.
Stop buying oil from countries who hate us but like our money. This is geo-politics 101.
Stop burning coal to make electricity which causes severe air pollution
stop burning oil products (gasoline, jet fuel, diesel oil) for transportation purposes which creates poor air quality.
Using free wind power to create electricity is cheaper.
Using free sun power (solar energy) to create electricity is cheaper.
Using free hydro-electric and geo-thermal power to create electricity is cheaper.
Not using our limited planetary resources for transportation and lighting and heating is just better!
Click here for more information: http://www.reviewed-by-james.com, to learn more about alternative, green energy. Jim Hess is passionate about green energy and is an expert author regarding green alternative energy conversions. See his website at http://www.reviewed-by-james.com
Article Source:
Here are the top ten reasons to convert to "greener" energy.
Stop strip mining for coal. Strip mining for coal is an environmental travesty. Entire tops of mountains and surrounding countryside are left standing bare and naked because of strip mining.
Stop drilling for oil. If we we using more green energy we wouldn't have to drill for so much more, and all the danger that entails like exploding oil rigs and oil wells that leak millions of barrels of fuel oil into our oceans.
Stop spilling the oil. All the oil that is spilled in drilling and transportation is tremendously damaging to our oceans and shorelines. Also, oil spills kill numerous seabirds and other sea-life.
Stop buying oil from countries who hate us but like our money. This is geo-politics 101.
Stop burning coal to make electricity which causes severe air pollution
stop burning oil products (gasoline, jet fuel, diesel oil) for transportation purposes which creates poor air quality.
Using free wind power to create electricity is cheaper.
Using free sun power (solar energy) to create electricity is cheaper.
Using free hydro-electric and geo-thermal power to create electricity is cheaper.
Not using our limited planetary resources for transportation and lighting and heating is just better!
Click here for more information: http://www.reviewed-by-james.com, to learn more about alternative, green energy. Jim Hess is passionate about green energy and is an expert author regarding green alternative energy conversions. See his website at http://www.reviewed-by-james.com
Article Source:
Green Energy Costs - What to Expect If You Want to Switch Your House Over to Green Energy!
By Kari Klein
If your goal is to do your part to help save our planet, then you can make sure you pitch in by finding out what the green energy costs and switching your home over to the type of energy that is natural and good for the earth. The best part is you can both help save the planet and you can save a ton of cash on your power bill as well. Here are the things you should know if you want to switch over to a green home.
First, you can do so with a contractor and it will be very quick and professionally done. There are green contractors that can install solar panels for you and help you get your power switched over. This can save you a ton of cash. The only downfall is using a professional is very expensive and could run as much as $20,000 in total.
Second, the green energy costs that you can save by doing this yourself will be significant. You can get a plan that will help you set up your entire system and you can do it for quite cheap. You would only need to put together a few solar panels and you can discover how to do this for about a $100 per panel and this can save you nearly 90% of your power bill each and every single month.
Last, getting the green energy you need for your home is not hard to do. It is an easy step by step plan that anybody can follow. If you can read and you can follow directions, then you can get the plans you need to set up you green home in a matter of a few days.
Stop paying high utility bills and start saving today. Get the Best DIY Green Energy Guide by Clicking Here!
Article Source:
If your goal is to do your part to help save our planet, then you can make sure you pitch in by finding out what the green energy costs and switching your home over to the type of energy that is natural and good for the earth. The best part is you can both help save the planet and you can save a ton of cash on your power bill as well. Here are the things you should know if you want to switch over to a green home.
First, you can do so with a contractor and it will be very quick and professionally done. There are green contractors that can install solar panels for you and help you get your power switched over. This can save you a ton of cash. The only downfall is using a professional is very expensive and could run as much as $20,000 in total.
Second, the green energy costs that you can save by doing this yourself will be significant. You can get a plan that will help you set up your entire system and you can do it for quite cheap. You would only need to put together a few solar panels and you can discover how to do this for about a $100 per panel and this can save you nearly 90% of your power bill each and every single month.
Last, getting the green energy you need for your home is not hard to do. It is an easy step by step plan that anybody can follow. If you can read and you can follow directions, then you can get the plans you need to set up you green home in a matter of a few days.
Stop paying high utility bills and start saving today. Get the Best DIY Green Energy Guide by Clicking Here!
Article Source:
How You Can Reduce Your Car's Carbon Footprint and Reduce Global Warming - Discover Ten Top Tips
Running a fuel efficient car isn't just about the manufacturer's fuel consumption figures. There are many simple things that you can do to run your car as efficiently as possible. Here are ten tips:
1. Make sure that your car is serviced regularly; it's the best way to make sure that it's running efficiently.
2. Check the oil each week: make sure that it's topped up with oil to the manufacturer's specification. For example, VW's TDI PD engines need a high-spec oil.
3. Make sure that the tyres are inflated to the right pressure: under-inflated tyres create more rolling resistance and therefore increase fuel consumption. Heavy loads often require higher tyre pressures, so check with handbook for the correct pressures.
4. Plan your route on a long journey and use a computer route planner or sat nav so that you don't get lost and waste fuel.
5. Put your car on a diet: weight is the enemy of good fuel economy. Check the boot (trunk) for anything that doesn't need to be there.
6. Check the roof: roof racks and roof boxes increase drag which can negatively affect fuel economy as the engine has to work harder.
7. Drive smoothly: hard acceleration drinks fuel like it's going out of fashion. Accelerate and brake gently.
8. Drive a car with a manual (stick shift) gearbox and change up at 2500 rpm for a gasoline car and 2000 revs for a diesel. Using a high gear can do wonders for fuel economy.
9. Turn the air con down at low speeds: air con drains a lot of power from the engine. Around town, wind down the window or open the sunroof instead.
10. Drive at lower speeds: typically, most cars are operating at their most efficient at about 50mph.
Stephen Moore writes on environmental and green matters at Green Questions And Answers.com
Article Source: http://EzineArticles.com/?expert=Stephen_William_Moore
and then there is......
1. Make sure that your car is serviced regularly; it's the best way to make sure that it's running efficiently.
2. Check the oil each week: make sure that it's topped up with oil to the manufacturer's specification. For example, VW's TDI PD engines need a high-spec oil.
3. Make sure that the tyres are inflated to the right pressure: under-inflated tyres create more rolling resistance and therefore increase fuel consumption. Heavy loads often require higher tyre pressures, so check with handbook for the correct pressures.
4. Plan your route on a long journey and use a computer route planner or sat nav so that you don't get lost and waste fuel.
5. Put your car on a diet: weight is the enemy of good fuel economy. Check the boot (trunk) for anything that doesn't need to be there.
6. Check the roof: roof racks and roof boxes increase drag which can negatively affect fuel economy as the engine has to work harder.
7. Drive smoothly: hard acceleration drinks fuel like it's going out of fashion. Accelerate and brake gently.
8. Drive a car with a manual (stick shift) gearbox and change up at 2500 rpm for a gasoline car and 2000 revs for a diesel. Using a high gear can do wonders for fuel economy.
9. Turn the air con down at low speeds: air con drains a lot of power from the engine. Around town, wind down the window or open the sunroof instead.
10. Drive at lower speeds: typically, most cars are operating at their most efficient at about 50mph.
Stephen Moore writes on environmental and green matters at Green Questions And Answers.com
Article Source: http://EzineArticles.com/?expert=Stephen_William_Moore
and then there is......
Geothermal Power on the Rise
By Euan Blauvelt
Geothermal power generation capacity worldwide rose from 7,972.7 MW in 2000 to 8,933 MW in 2005, with 8,035 MW running. This is about 0.2% of the total world installed power generating capacity.
The geothermal heat pump (GHP), also known as the Ground-Source Heat Pump (GSHP) or generically as geoexchange, is the fastest growing geothermal application today. GSHP is a highly efficient renewable energy technology that is gaining wide acceptance for both residential and commercial buildings, with 1.4 million installations worldwide by 2005, and growth from 1,854 MWt of capacity in 1995 to 15,284 MWt in 2005.
Ground-Source Heat Pumps are used for space heating and cooling, as well as water heating. The technology relies on the fact that the Earth (beneath the surface) remains at a relatively constant temperature throughout the year, warmer than the air above it during the winter and cooler in the summer. GSHP systems do work that ordinarily requires two appliances, a furnace and an air conditioner and use 25%–50% less electricity than conventional heating or cooling systems.
Geothermal technology is suitable for integrated regional energy systems, rural electrification and mini-grid applications, especially in distributed generation systems, in addition to national grid applications. It is being promoted as a regional resource, combining the exploitation of renewable energy resources together with environmental advantages.
Geothermal energy is contained in the heated rocks and fluid that fill the fractures and pores within the earth’s crust. It can be harvested in two ways, direct use of hot water or steam for space heating or industrial use such as aquaculture, thermal baths and hot springs, and to power electricity generation plants. Direct use is confined to low temperatures, usually below 150o C whereas, power generation employs high temperature resources over 150o C. 80 countries have developed direct use of geothermal energy and 20 exploit geothermal energy for power generation. Direct low-temperature use employs about twice the energy capacity as is used for power generation.
Direct use of geothermal heat has been used for thousands of years. The major direct use applications today are GSHP installations for space heating, presently estimated to exceed 500,000 and are the first in terms of global capacity but third in terms of output. Direct use of geothermal energy achieves 50-70% efficiency, compared with the 5-20% efficiency achieved with the indirect use of generating electricity.
Geothermal power started in 1904 with the Larderello field in Tuscany, which produced the world's first geothermal electricity. Major production at Larderello began in the 1930s and by 1970; power capacity had reached 350 MW. The Geysers in California started in the 1960s is the largest geothermal plant in the world. Individual geothermal power plants can be as small as 100 kW or as large as 100 MW depending on the energy resource and power demand.
The three countries with the largest amount of installed direct heat use capacity are USA (5,366 MW), China (2,814 MW) and Iceland (1,469 MW), accounting for 58% of world capacity, which has reached 16,649 MW.
The global installed capacity of geothermal power generation at in December 2005 was 8,933 MW, of which 8,035 MW was operational. Six countries accounted for 86% of the geothermal generation capacity in the world. The USA is first with 2,564 MW (1,935 MW operational), followed by Philippines (1,931 MW, 1,838 MW operational); four countries (Mexico, Italy, Indonesia, Japan) had capacity at the end of 2005 in the range of 535-953 MW each. Mexico and Indonesia have grown 26% and 35% respectively between 2000 and 2005. Although on a smaller base, Kenya achieved the highest growth, from 45 MW to 129 MW.
In the last five years geothermal power generation has grown at an annual rate of 2.3% globally, a slower pace than the 3.25 in the previous five years, while direct heat use showed a strong increase. With current technology, the global potential capacity for geothermal generation is estimated at 72,500 MW and at 138,100 MW with enhanced technology.
A strong decline in the USA in recent years, due to over-exploitation of the Geysers steam field, has been partly compensated by important additions to capacity in several countries: Mexico, Indonesia, Philippines, Italy, New Zealand, Iceland, Mexico, Costa Rica, El Salvador and Kenya. Newcomers in the electric power sector are Ethiopia (1998), Guatemala (1998), Austria (2001) and Nicaragua.
In 2005 and 2006 the United States showed strong signs of renewed growth for geothermal power generation. Five states now have geothermal power generating facilities; California, Nevada, Utah, Alaska and Hawaii. The Richard Burdett Power Plant (formerly Galena I) in Nevada commenced generating power in 2005 and the first geothermal power plant in Alaska being installed in 2006 at Chena Hot Springs. A fairly extensive list of projects has been
announced for the next ten years, with new installations planned in Arizona, Idaho, New Mexico and Oregon, in addition to the existing five ‘geothermal’ states. Japan, Philippines and Nicaragua have all announced ambitious plans for further development of geothermal power.
There are three basic technologies for generating electricity from geothermal energy. Dry steam power plants using dry steam systems were the first type of geothermal power generation plants to be built. They use the steam from the geothermal reservoir as it comes from wells and route it directly through turbine/generator units to produce electricity. Flash steam plants are the most common type of geothermal power generation plants in operation today. They use water at temperatures greater than 182°C that is pumped under high pressure to the generation equipment at the surface. Upon reaching the generation equipment, the pressure is suddenly reduced, allowing some of the hot water to convert or "flash" into steam.
This steam is then used to power the turbine/generator units to produce electricity. Binary cycle geothermal power generation plants differ from dry steam and flash steam systems in that the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units but is used to heat another "working fluid" which is vaporised and used to turn the turbine/generator units.
Geothermal power projects require high capital investment for exploration, drilling wells and installation of plant, but have low operating costs because of the low marginal cost of fuel. Return on investment is not achieved as quickly as with cheaper fossil fuel power plant, but longer term economic benefits accrue from the use of this indigenous fuel source.
Construction costs of geothermal plants can vary widely, depending on local conditions and range from a minimum of $1.1 million to $ 3 million per megawatt. The DOE has calculated an average cost of $1.68 million for geothermal plants built in the Northwest of America in the last two years, where the bulk of US plants are situated or planned. However, while this is high in
comparison with gas power, which can be as low as $460,000 per megawatt, the operating cost can be lower because there is no cost of fuel.
The leaders in developing geothermal technology and installing new plants are three American companies - Calpine, Unocal and Ormat, and one Japanese company- Marubeni. These companies have been active in establishing joint ventures in the Philippines and Indonesia and more recently in Central America.
USA
In December 2005 the installed geothermal capacity in the USA was 2,564 MW, of which 1,935 MW was usable. The considerable difference between installed capacity and operating capacity in the USA was due to lack of steam caused by over-exploitation of the Geysers geothermal field in California. On this site, available steam can now only supply 888 MW out of the 1,421 MW installed capacity.
Current geothermal resources using today’s technology are estimated at 6,520 MW and at 22,000 MW with enhanced technology.
Over the last three decades, the US geothermal power-generation industry has grown to be the largest in the world, with over 2,445 MW of installed electrical capacity. Growth during the first two decades (1960-1980) was due to a single utility’s development of one dry-steam resource. After 1983, growth shifted toward independent power producers and development of waterdominated geothermal resources at several locations.
The steady growth of geothermal development in the United States from 1960 to 1979 was led by activities at The Geysers, where the field developments of the partnership of Union Oil Company of California, Magma Energy Company, and Thermal Power Company were greatly expanded toprovide steam to the Pacific Gas and Electric Company (PG&E) electrical-generation system.
This construction made The Geysers field the largest geothermal development in the world. Production from The Geysers peaked in 1988 but pressure declines in the reservoir limited any further expansion of the field. In December 2006, it was announced that the 55 MW Bottle Rock Geothermal Power Plant at The Geysers will reopen after being dormant since 1990. It will operate initially at 20 MW with plans to expand.
Geothermal well drilling has tapered off in the US since the 1980s. In California, four wells were drilled in 1996 (one at The Geysers and three at Salton Sea), nine in 1997 (four at Coso, two at The Geysers and three at Salton Sea) and seven in 1998 (three at Coso, one at The Geysers and three in the Salton Sea). In all, between 1996 and 1998, only 13 production and seven injection wells were drilled in California. The most promising new areas for geothermal
exploration are in Hawaii and the Cascade Mountains of Washington, Oregon, and northern California.
Future developments are planned, with projects being considered in some 55 stages. Not all of these will happen since some are in the pre-planning phase and others are awaiting approval. The opinion in the geothermal industry in the US is up-beat for future expansion.
Philippines
The Philippines is the second largest geothermal power generating country in the world after the USA, with installed capacity of 1,930 MW at the end of 2005, of which 1,838 MW was operational.
The Philippines now leads the world in terms of wet steam field capacity and ranks just behind the US in terms of geothermal power generation.
The Philippines is located in the Pacific Rim of Fire, a volcanic region which extends in a crescent from Sumatra in Indonesia at the western end, across the 3,000 mile archipelago of Indonesia, through the Philippines archipelago to Japan in the east. It has a considerable number of high quality geothermal resources. These are all island arc volcanic systems as typically found in the Circum-Pacific region, and show close similarities with geothermal systems in Indonesia and Japan. The widely distributed nature of the geothermal resources in the Philippines has long been an impediment to geothermal power development.
With over 20 years of experience in geothermal development and power generation, the geothermal industry in the Philippines is now in a mature state and currently the Philippines Department of Energy is supervising the operations of nine geothermal service contract areas. In the early 1990s, there was a rapid upswing in geothermal power development and 1,000 MW of geothermal capacity was added between 1993 and 1997. This was largely due to BOT
legislation in the Philippines, which allowed international power utilities to enter the market and to fund and construct geothermal power plants. This enabled an increase in the much needed generating capacity without increasing national debt.
The Philippine government plans to add 526 MW of new capacity between 2002 and 2008.
Indonesia
Development of geothermal potential has proceeded very slowly in Indonesia and is currently facing difficult challenges and uncertainty. Over a span of 20 years, Indonesia has developed only 797 MW of geothermal power, approximately 4% of 20,000 MW geothermal potential. In the early 1990s, eleven contracts for development of geothermal power plants were awarded, with a total committed capacity of 3,417 MW and original completion dates between 1998 and 2002. As a result of the 1997-1998 financial crisis, which brought PLN, the state utility to technical bankruptcy, the Government suspended nine conventionally powered IPPs and seven geothermal projects. The government is now attempting to resuscitate the seven contracts but
with little progress.
The new oil and gas law, passed in October 2001, bars geothermal as an area of regulation, requiring the Indonesian Government to develop a new legislative basis quickly. PLN understands that the future of geothermal power will depend on its competitiveness against other means of electricity generation. High capital costs and the associated electricity tariff required remain core problems. In addition, unresolved decentralization issues, uncertainties in security and contracts, and the potential regulatory changes of a planned geothermal law
discourage investment in geothermal projects. In the long run, Indonesia still presents one of the world’s most attractive geothermal regions, but the Indonesian Government must develop new approaches to maximize its potential.
PLN is currently negotiating to bring down tariff rates on various geothermal ESCs, with the intent of lowering prices from US ¢ 6-8 cents/kWh agreed under Power Purchase Agreements (PPAs) to around US ¢4 cents/kWh. The original prices negotiated by the geothermal developers ranged between US ¢7.25-9.81/kWh, about double the viable rate.
Italy
Italy is one of the world’s leading countries in terms of geothermal resources. Commercial power generation from geothermal resources began in Italy in 1913 with a 250 kW unit at Larderello. Subsequently, the main emphasis has been on the production of power. Geothermal electric power generating capacity in Italy has reached 791 MW with four geothermal power plants in 2005.
The geothermal development has been almost entirely privately funded. Since 1985, $US 280 million has been spent on R&D and $US 1254 million on field development. Of these funds, 99% were obtained from private sources and only 1% was derived from public sources.
Mexico
Mexico is one of the fastest growing geothermal producers in the world. Twenty-seven geothermal power plants are operating in the three Mexican fields, with total geothermal capacity of 953 MW in December 2005. There is a project to install 75 MW in 2006-2008 in the new area La Primavera pending resolution of some environmental matters. CFE has programmed to increase capacity in Cerro Prieto (100 MW) and Los Humeros (25 MW) in 2010.
Direct uses of geothermal heat are widespread in Mexico, including industrial laundries, refrigeration, district and greenhouse heating, and fruit and wood drying.
Japan
The first experimental geothermal power generation in Japan took place in 1925 in Beppu and capacity reached 535 MW in December 2005, which ranks Japan sixth in the world. The government target for the year 2010 is installed geothermal capacity of 2,800MW. The plants range in size from the 65 MW Yanaizu-Nishiyama unit to the 100 kW Kirishima International Hotel back- pressure generator in Beppu, Kyushu.
The Japanese government gives substantial support to the development of geothermal power. ANRE, the Agency for Natural Resources and Energy is playing a core role in development and utilisation of geothermal energy in Japan, such as providing subsidy. NEDO plays a central role to support renewables and after a slow start is now promoting geothermal development as an element of the concept of regional renewable integrated self-sufficient systems. The introduction and promotion of geothermal energy as an alternative for petroleum, has been its major task.
The organisation is also encouraging international cooperation relating to geothermal engineering.
Other countries
A further 16 countries have geothermal generating facilities of varying size, ranging from under 500 kW in Argentina to 435 MW in New Zealand. Many of the smaller countries have higher direct use.
A graduate of Cambridge University, Euan Blauvelt was trained in market research in London, later moving to Southeast Asia for twelve years where he was responsible for many research studies for a wide range of industries and governments. On his return to London he was a co-founder of ABS Energy Research seventeen years ago, which specialises in energy and environmental services market research.
ABS Energy Research publishes research on the renewable energy industry and the Geothermal power market as well as all other types of energy and environmental services. http://www.absenergyresearch.com
Article Source: http://EzineArticles.com/?expert=Euan_Blauvelt
and then there is..........
Geothermal power generation capacity worldwide rose from 7,972.7 MW in 2000 to 8,933 MW in 2005, with 8,035 MW running. This is about 0.2% of the total world installed power generating capacity.
The geothermal heat pump (GHP), also known as the Ground-Source Heat Pump (GSHP) or generically as geoexchange, is the fastest growing geothermal application today. GSHP is a highly efficient renewable energy technology that is gaining wide acceptance for both residential and commercial buildings, with 1.4 million installations worldwide by 2005, and growth from 1,854 MWt of capacity in 1995 to 15,284 MWt in 2005.
Ground-Source Heat Pumps are used for space heating and cooling, as well as water heating. The technology relies on the fact that the Earth (beneath the surface) remains at a relatively constant temperature throughout the year, warmer than the air above it during the winter and cooler in the summer. GSHP systems do work that ordinarily requires two appliances, a furnace and an air conditioner and use 25%–50% less electricity than conventional heating or cooling systems.
Geothermal technology is suitable for integrated regional energy systems, rural electrification and mini-grid applications, especially in distributed generation systems, in addition to national grid applications. It is being promoted as a regional resource, combining the exploitation of renewable energy resources together with environmental advantages.
Geothermal energy is contained in the heated rocks and fluid that fill the fractures and pores within the earth’s crust. It can be harvested in two ways, direct use of hot water or steam for space heating or industrial use such as aquaculture, thermal baths and hot springs, and to power electricity generation plants. Direct use is confined to low temperatures, usually below 150o C whereas, power generation employs high temperature resources over 150o C. 80 countries have developed direct use of geothermal energy and 20 exploit geothermal energy for power generation. Direct low-temperature use employs about twice the energy capacity as is used for power generation.
Direct use of geothermal heat has been used for thousands of years. The major direct use applications today are GSHP installations for space heating, presently estimated to exceed 500,000 and are the first in terms of global capacity but third in terms of output. Direct use of geothermal energy achieves 50-70% efficiency, compared with the 5-20% efficiency achieved with the indirect use of generating electricity.
Geothermal power started in 1904 with the Larderello field in Tuscany, which produced the world's first geothermal electricity. Major production at Larderello began in the 1930s and by 1970; power capacity had reached 350 MW. The Geysers in California started in the 1960s is the largest geothermal plant in the world. Individual geothermal power plants can be as small as 100 kW or as large as 100 MW depending on the energy resource and power demand.
The three countries with the largest amount of installed direct heat use capacity are USA (5,366 MW), China (2,814 MW) and Iceland (1,469 MW), accounting for 58% of world capacity, which has reached 16,649 MW.
The global installed capacity of geothermal power generation at in December 2005 was 8,933 MW, of which 8,035 MW was operational. Six countries accounted for 86% of the geothermal generation capacity in the world. The USA is first with 2,564 MW (1,935 MW operational), followed by Philippines (1,931 MW, 1,838 MW operational); four countries (Mexico, Italy, Indonesia, Japan) had capacity at the end of 2005 in the range of 535-953 MW each. Mexico and Indonesia have grown 26% and 35% respectively between 2000 and 2005. Although on a smaller base, Kenya achieved the highest growth, from 45 MW to 129 MW.
In the last five years geothermal power generation has grown at an annual rate of 2.3% globally, a slower pace than the 3.25 in the previous five years, while direct heat use showed a strong increase. With current technology, the global potential capacity for geothermal generation is estimated at 72,500 MW and at 138,100 MW with enhanced technology.
A strong decline in the USA in recent years, due to over-exploitation of the Geysers steam field, has been partly compensated by important additions to capacity in several countries: Mexico, Indonesia, Philippines, Italy, New Zealand, Iceland, Mexico, Costa Rica, El Salvador and Kenya. Newcomers in the electric power sector are Ethiopia (1998), Guatemala (1998), Austria (2001) and Nicaragua.
In 2005 and 2006 the United States showed strong signs of renewed growth for geothermal power generation. Five states now have geothermal power generating facilities; California, Nevada, Utah, Alaska and Hawaii. The Richard Burdett Power Plant (formerly Galena I) in Nevada commenced generating power in 2005 and the first geothermal power plant in Alaska being installed in 2006 at Chena Hot Springs. A fairly extensive list of projects has been
announced for the next ten years, with new installations planned in Arizona, Idaho, New Mexico and Oregon, in addition to the existing five ‘geothermal’ states. Japan, Philippines and Nicaragua have all announced ambitious plans for further development of geothermal power.
There are three basic technologies for generating electricity from geothermal energy. Dry steam power plants using dry steam systems were the first type of geothermal power generation plants to be built. They use the steam from the geothermal reservoir as it comes from wells and route it directly through turbine/generator units to produce electricity. Flash steam plants are the most common type of geothermal power generation plants in operation today. They use water at temperatures greater than 182°C that is pumped under high pressure to the generation equipment at the surface. Upon reaching the generation equipment, the pressure is suddenly reduced, allowing some of the hot water to convert or "flash" into steam.
This steam is then used to power the turbine/generator units to produce electricity. Binary cycle geothermal power generation plants differ from dry steam and flash steam systems in that the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units but is used to heat another "working fluid" which is vaporised and used to turn the turbine/generator units.
Geothermal power projects require high capital investment for exploration, drilling wells and installation of plant, but have low operating costs because of the low marginal cost of fuel. Return on investment is not achieved as quickly as with cheaper fossil fuel power plant, but longer term economic benefits accrue from the use of this indigenous fuel source.
Construction costs of geothermal plants can vary widely, depending on local conditions and range from a minimum of $1.1 million to $ 3 million per megawatt. The DOE has calculated an average cost of $1.68 million for geothermal plants built in the Northwest of America in the last two years, where the bulk of US plants are situated or planned. However, while this is high in
comparison with gas power, which can be as low as $460,000 per megawatt, the operating cost can be lower because there is no cost of fuel.
The leaders in developing geothermal technology and installing new plants are three American companies - Calpine, Unocal and Ormat, and one Japanese company- Marubeni. These companies have been active in establishing joint ventures in the Philippines and Indonesia and more recently in Central America.
USA
In December 2005 the installed geothermal capacity in the USA was 2,564 MW, of which 1,935 MW was usable. The considerable difference between installed capacity and operating capacity in the USA was due to lack of steam caused by over-exploitation of the Geysers geothermal field in California. On this site, available steam can now only supply 888 MW out of the 1,421 MW installed capacity.
Current geothermal resources using today’s technology are estimated at 6,520 MW and at 22,000 MW with enhanced technology.
Over the last three decades, the US geothermal power-generation industry has grown to be the largest in the world, with over 2,445 MW of installed electrical capacity. Growth during the first two decades (1960-1980) was due to a single utility’s development of one dry-steam resource. After 1983, growth shifted toward independent power producers and development of waterdominated geothermal resources at several locations.
The steady growth of geothermal development in the United States from 1960 to 1979 was led by activities at The Geysers, where the field developments of the partnership of Union Oil Company of California, Magma Energy Company, and Thermal Power Company were greatly expanded toprovide steam to the Pacific Gas and Electric Company (PG&E) electrical-generation system.
This construction made The Geysers field the largest geothermal development in the world. Production from The Geysers peaked in 1988 but pressure declines in the reservoir limited any further expansion of the field. In December 2006, it was announced that the 55 MW Bottle Rock Geothermal Power Plant at The Geysers will reopen after being dormant since 1990. It will operate initially at 20 MW with plans to expand.
Geothermal well drilling has tapered off in the US since the 1980s. In California, four wells were drilled in 1996 (one at The Geysers and three at Salton Sea), nine in 1997 (four at Coso, two at The Geysers and three at Salton Sea) and seven in 1998 (three at Coso, one at The Geysers and three in the Salton Sea). In all, between 1996 and 1998, only 13 production and seven injection wells were drilled in California. The most promising new areas for geothermal
exploration are in Hawaii and the Cascade Mountains of Washington, Oregon, and northern California.
Future developments are planned, with projects being considered in some 55 stages. Not all of these will happen since some are in the pre-planning phase and others are awaiting approval. The opinion in the geothermal industry in the US is up-beat for future expansion.
Philippines
The Philippines is the second largest geothermal power generating country in the world after the USA, with installed capacity of 1,930 MW at the end of 2005, of which 1,838 MW was operational.
The Philippines now leads the world in terms of wet steam field capacity and ranks just behind the US in terms of geothermal power generation.
The Philippines is located in the Pacific Rim of Fire, a volcanic region which extends in a crescent from Sumatra in Indonesia at the western end, across the 3,000 mile archipelago of Indonesia, through the Philippines archipelago to Japan in the east. It has a considerable number of high quality geothermal resources. These are all island arc volcanic systems as typically found in the Circum-Pacific region, and show close similarities with geothermal systems in Indonesia and Japan. The widely distributed nature of the geothermal resources in the Philippines has long been an impediment to geothermal power development.
With over 20 years of experience in geothermal development and power generation, the geothermal industry in the Philippines is now in a mature state and currently the Philippines Department of Energy is supervising the operations of nine geothermal service contract areas. In the early 1990s, there was a rapid upswing in geothermal power development and 1,000 MW of geothermal capacity was added between 1993 and 1997. This was largely due to BOT
legislation in the Philippines, which allowed international power utilities to enter the market and to fund and construct geothermal power plants. This enabled an increase in the much needed generating capacity without increasing national debt.
The Philippine government plans to add 526 MW of new capacity between 2002 and 2008.
Indonesia
Development of geothermal potential has proceeded very slowly in Indonesia and is currently facing difficult challenges and uncertainty. Over a span of 20 years, Indonesia has developed only 797 MW of geothermal power, approximately 4% of 20,000 MW geothermal potential. In the early 1990s, eleven contracts for development of geothermal power plants were awarded, with a total committed capacity of 3,417 MW and original completion dates between 1998 and 2002. As a result of the 1997-1998 financial crisis, which brought PLN, the state utility to technical bankruptcy, the Government suspended nine conventionally powered IPPs and seven geothermal projects. The government is now attempting to resuscitate the seven contracts but
with little progress.
The new oil and gas law, passed in October 2001, bars geothermal as an area of regulation, requiring the Indonesian Government to develop a new legislative basis quickly. PLN understands that the future of geothermal power will depend on its competitiveness against other means of electricity generation. High capital costs and the associated electricity tariff required remain core problems. In addition, unresolved decentralization issues, uncertainties in security and contracts, and the potential regulatory changes of a planned geothermal law
discourage investment in geothermal projects. In the long run, Indonesia still presents one of the world’s most attractive geothermal regions, but the Indonesian Government must develop new approaches to maximize its potential.
PLN is currently negotiating to bring down tariff rates on various geothermal ESCs, with the intent of lowering prices from US ¢ 6-8 cents/kWh agreed under Power Purchase Agreements (PPAs) to around US ¢4 cents/kWh. The original prices negotiated by the geothermal developers ranged between US ¢7.25-9.81/kWh, about double the viable rate.
Italy
Italy is one of the world’s leading countries in terms of geothermal resources. Commercial power generation from geothermal resources began in Italy in 1913 with a 250 kW unit at Larderello. Subsequently, the main emphasis has been on the production of power. Geothermal electric power generating capacity in Italy has reached 791 MW with four geothermal power plants in 2005.
The geothermal development has been almost entirely privately funded. Since 1985, $US 280 million has been spent on R&D and $US 1254 million on field development. Of these funds, 99% were obtained from private sources and only 1% was derived from public sources.
Mexico
Mexico is one of the fastest growing geothermal producers in the world. Twenty-seven geothermal power plants are operating in the three Mexican fields, with total geothermal capacity of 953 MW in December 2005. There is a project to install 75 MW in 2006-2008 in the new area La Primavera pending resolution of some environmental matters. CFE has programmed to increase capacity in Cerro Prieto (100 MW) and Los Humeros (25 MW) in 2010.
Direct uses of geothermal heat are widespread in Mexico, including industrial laundries, refrigeration, district and greenhouse heating, and fruit and wood drying.
Japan
The first experimental geothermal power generation in Japan took place in 1925 in Beppu and capacity reached 535 MW in December 2005, which ranks Japan sixth in the world. The government target for the year 2010 is installed geothermal capacity of 2,800MW. The plants range in size from the 65 MW Yanaizu-Nishiyama unit to the 100 kW Kirishima International Hotel back- pressure generator in Beppu, Kyushu.
The Japanese government gives substantial support to the development of geothermal power. ANRE, the Agency for Natural Resources and Energy is playing a core role in development and utilisation of geothermal energy in Japan, such as providing subsidy. NEDO plays a central role to support renewables and after a slow start is now promoting geothermal development as an element of the concept of regional renewable integrated self-sufficient systems. The introduction and promotion of geothermal energy as an alternative for petroleum, has been its major task.
The organisation is also encouraging international cooperation relating to geothermal engineering.
Other countries
A further 16 countries have geothermal generating facilities of varying size, ranging from under 500 kW in Argentina to 435 MW in New Zealand. Many of the smaller countries have higher direct use.
A graduate of Cambridge University, Euan Blauvelt was trained in market research in London, later moving to Southeast Asia for twelve years where he was responsible for many research studies for a wide range of industries and governments. On his return to London he was a co-founder of ABS Energy Research seventeen years ago, which specialises in energy and environmental services market research.
ABS Energy Research publishes research on the renewable energy industry and the Geothermal power market as well as all other types of energy and environmental services. http://www.absenergyresearch.com
Article Source: http://EzineArticles.com/?expert=Euan_Blauvelt
and then there is..........
Renewable Energy, Rising Popularity and Efficiency
Energy that is generated from natural resources and is naturally replenished is renewable energy. Renewable energy harvesting encompasses many types of technologies, and the popularity and successes of those vary considerably. There are those technologies that are already proven and economically competitive, while some need additional development to become competitive. According to the Energy Information Administration, "in 1850, about 90% of the energy consumed in the United States was from renewable energy resources, and in 2004, about 6% of all energy consumed and about 9% of total electricity production was from renewable energy resources." It is widely accepted that the use of renewable fuels will need to continue to grow over the next 30 years for a number of economic, societal, and environmental reasons.
Due to the Energy Policy Acts of 2002 and 2005 and a number of State and Federal Government incentives, the harvesting and use of renewable fuels have grown considerably. This trend is also driven by higher prices for oil and natural gas. Although we continue to depend on non-renewable fuels to meet our immediate needs, the harvesting of atmospheric, solar, wind, rain, tides and geothermal heat energies will in time replace the limited and environmentally unfriendly fuels. Of course, improving efficient use of energy is one of the most cost-effective and immediate ways to reduce foreign fossil fuel dependence, improve national security, and secure the environmental health.
The immediate remedy of energy efficiency through new green building, home weatherization, and conservation education will reduce economic costs, alleviate environmental damage and hold off the inevitable for the short term. However, currently the most common and inexpensive energy sources are non-renewable, very finite, and we are addicted. The world is heavily reliant on the non-renewable fossil fuels and we must shift the world's energy dependence from fossil fuels to reliable renewable solutions. This will require "massive amounts of capital with long timelines to returns." Corporations are reluctant to make such long term investments in energy research and development despite the global community's need.
There are compelling reasons to make an investment in the research and development of renewable energy sources and the harvesting of green energy. First and foremost, as the demand for green alternatives grows the corporations will gladly provide what the public wants. "According to the Economist, "Moreover, a new rationale for promoting green investments is beginning to emerge. Many luminaries, from the head of the United Nations Environment Programme to Barack Obama, America's president-elect, tout the industry as a means both to address global warming and stimulate flagging Western economies. Reports enumerating the economic benefits of state support for clean technology, in the form of industries fostered and jobs created, abound.... American lawmakers, at any rate, seem convinced: they slipped an extension of all-important subsidies for renewable energy into the recent bail-out for financial services."
Reliable, renewable energy is the future. The development and improvement of solar, tidal, wind, geothermal among other exciting resources is worth our time and money. Wave energy is always available. Solar and wind is "forecastable" and improvements in harvesting are made every day. Most of our power comes from central-station power plants, losing vast amounts of harvested power in the transmission. Many renewable energies may offer the generation of electricity closer to remote villages, towns, and cities which increases availability, and reduces cost for the consumer. The reduction of energy us through efficiencies and the increased development and resulting reliance on reliable renewable resources will save money, create jobs, increase national security, and preserve our planet for generations to come.
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