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Italy gets first solar power plant - 0 views

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    MONTEFALCONE, Italy, July 23 Israel-based Millennium Electric TOU Ltd. has completed construction of Italy's first solar power station. The 50-kilowatt plant is part of an order for a nationwide network of solar power stations, which will generate an aggregate 10 megawatts, Globes Online reported. The company is scheduled to complete the project in five years. The first solar power station will begin operating immediately. The power station was built in Montefalcone in southern Italy for ES Energy, which operates a multi-megawatt wind driven turbine power station on the site. The present contract deviates from Millennium Electric's business policy in that the company usually only signs contracts through which it both builds solar power stations using its technology for the customer, as well as shares in the power station's sales.
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WTC Presents Solar Cells Manufacturers Database - 0 views

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    WTC, a Munich, Germany-based consulting company, has tracked down more than 130 international manufacturers which are involved in the thin-film solar cell production process-from the cutting edge pilot lines to the major manufacturing plants-and has created a solar cells database listing.
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Fatally flawed attack on renewables by Jesse Ausubel | Gristmill: The environmental new... - 0 views

  • Climate analyst Jesse Ausubel is getting a lot of press with his new, controversial, deeply flawed study, "Renewable and nuclear heresies" (available here with subscription, but you can get the main points from this 2005 Canadian Nuclear Association talk and the accompanying PPT presentation).
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Alternative Energy Futures: The Case for Electricity -- Colombo 217 (4561): 705 -- Science - 0 views

  • The energy trends of the past and their likely evolution in the next 50 years have been analyzed in the light of technological progress. It is concluded that society will tend to become less centralized than in the past and that it is possible to have future per capita values of energy consumption at the world level similar to those at present, with a substantial redistribution to allow for economic growth of the less developed countries. A condition for this is increasing penetration of electricity. The rationale for the suggested scenario is described, and prospects for electricity for both the industrialized and developing countries are discussed.
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CiteSeerX - China's Energy Situation and Its Implications in the New Millennium. - 0 views

  • Abstract Many are interested in China’s energy situation, however, numerous energy related issues in China still remain unanswered, for example, what are the potential forces driving energy demand and supply? Previous reviews focused only on fossil fuel based energy and ignored other important elements including renewable and ‘clean ’ energy sources. The work presented here is intended to fill this gap by bringing the research on fossil-based and renewable energy economic studies together and identifying the potential drivers behind both energy demand and supply to provide a complete picture of China’s energy situation in the new millennium. This will be of interest to anyone concerned with the development of China’s economy in general and the energy economy, in particular.
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How to Make 25% of World's Electricity from Solar Energy by 2050 - 0 views

  • The International Energy Agency (IEA) presented two new solar energy analyses in Valencia, Spain this week, a Solar Photovoltaic Energy Technology Roadmap and a Concentrating Solar Power Technology Roadmap. The key finding from these is that 20-25% of global electricity production could be from solar energy by 2050.
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Latin America News - 0 views

  • The Chilean Agency for Energy Efficiency is developing an energy efficiency labeling system for new vehicles due out in 2011 and will be mandatory starting in September.  (Diario Financiero, 12/16/10)
  • Scientists at the University of Costa Rica are developing solar cells sensitized with dyes from local plants.  Benefits of the cells include its cheaper production price, flexibility and thinness, and ability to produce power with very little light.  However they are not yet as efficient as the present day silicon solar cells. (El Financiero CR, 12/14/10) Mitsubishi Motors will release the first electric car in Costa Rica, called iMiEV.  The car is 100% electric, automatic, is powered by a lithium-ion battery, has room for five people and will cost $61,500.  According to the company, Costa Rica was chosen for car’s release in the Americas due to its environmental record and goal to become carbon neutral by 2021. (El Financiero CR, 12/14/10)
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Scottish Researchers Revolutionize Wind Turbine Engineering With Minor Tweak - 1 views

  • The researchers there have developed a system that is simpler to assemble and manufacture, and laid out their suggestion in a paper (pdf) presented at the 2008 European Wind Energy Conference. Till now; the blades of wind turbines have been connected to a generator via a gearbox. Their technology substituted a “C” shaped core generator (initially in a 20 kW prototype) to test to see if by changing the mechanical structure of the generator they could still maintain rigidity and structural integrity while cutting the weight by more than half. The design is simply a novel arrangement of the electromagnetically active components: the magnets, steel and copper inside the generator and the copper coils.
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Grid-scale energy storage applications in renewable energy integration: A survey - 2 views

  • This paper examines both the potential of and barriers to grid-scale energy storage playing a substantive role in transitioning to an efficient, reliable and cost-effective power system with a high penetration of renewable energy sources. Grid-scale storage is a term that describes a number of different technologies with a wide range of characteristics. This versatility leads to the use of storage to perform a number of grid-services. We first enumerate these services, with an emphasize on those that are best suited to mitigate the effects of uncertainty and variability associated with intermittent, non-dispatchable renewable energy sources. We then provide an overview of the current methods to evaluate grid-integrated storage, summarize key findings, and highlight ongoing challenges to large-scale adoption of grid-scale energy storage. We focus on one particular area that is critical to both the efficient use of energy storage in the power grid and its long-term economic viability: the conflict between the technical benefits of this resource, which can provide both power and energy related grid-services (in some cases simultaneously), and the economic challenges of compensating these services within the current market structures. We then examine recent progress in addressing these issues through regulatory changes and other initiatives designed to mitigate previous market failures. This discussion is followed by some remarks about ongoing regulatory and market design challenges. The paper closes with a summary of the ideas presented and a discussion of critical research needs.
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Teenager Designs Safer Nuclear Power Plants - Yahoo! News - 3 views

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    Very interesting presentation at the TED Conference.  Not quite a nuclear battery, but a really good redesign of nuclear power systems. excerpt: "Instead of finding a new way to boil water, Wilson's compact, molten salt reactor found a way to heat up gas. That is, really heat it up. Wilson's fission reactor operates at 600 to 700 degrees Celsius. And because the laws of thermodynamics say that high temperatures lead to high efficiencies, this reactor is 45 to 50 percent efficient. Traditional steam turbine systems are only 30 to 35 percent efficient because their reactors run at low temperatures of about 200 to 300 degrees Celsius. And Wilson's reactor isn't just hot, it's also powerful. Despite its small size, the reactor generates between 50 and 100 megawatts of electricity, which is enough to power anywhere from 25,000 to 100,000 homes, according to Wilson. Another innovative component of Wilson's take on nuclear fission is its source of fuel. The molten salt reactor runs off of "down-blended weapons pits." In other words, all the highly enriched uranium and weapons-grade plutonium collecting dust since the Cold War could be put to use for peaceful purposes. And unlike traditional nuclear power plants, Wilson's miniature power plants would be buried below ground, making them a boon for security advocates. According to Wilson, his reactor only needs to be refueled every 30 years, compared to the 18-month fuel cycle of most power plants. This means they can be sealed up underground for a long time, decreasing the risk of proliferation. Wilson's reactor is also less prone to proliferation because it doesn't operate at high pressure like today's pressurized-water reactors or use ceramic control rods, which release hydrogen when heated and lead to explosions during nuclear power plant accidents, like the one at Fukushima in 2011. In the event of an accident in one of Wilson's reactors, the fuel from the core would drain into a "sub-critical" setting- or tank-
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AWEA: "U.S. Wind Market Grew by 39% in 2009 - 1 views

shared by Energy Net on 12 Apr 10 - Cached
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    "U.S. Wind Market Grew by 39% The U.S. wind industry brought in a historic year in 2009, installing nearly 10,000 MW of new wind. During one of the worst financial crises in recent history, the wind market grew 39% in 2009, bringing new major developers and turbine manufacturers to the market, making the "top ten" rankings an ever-changing list. The AWEA Finance & Investment Workshop offered insights on how to position your company to gain from the tremendous wind industry growth. The expert speakers, presenters, and financial gurus shared the successes of the American Recovery and Reinvestment Act (ARRA) and how creative uses of new policies could create investment opportunities for 2010. "
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Best Research-Cell Efficiency Chart | Photovoltaic Research | NREL - 1 views

  • NREL maintains a chart of the highest confirmed conversion efficiencies for research cells for a range of photovoltaic technologies, plotted from 1976 to the present.
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How to Make Electricity From Wasted Energy - 0 views

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    Energy efficiency is low hanging fruit in the clean energy movement. Low-grade waste heat may not have the allure of shiny solar panels or a row of wind turbines, but it presents an opportunity that is too good for Michael Newell, CEO of Ener-G-Rotors to pass up. The company is developing a product that generates electricity from low-grade waste heat.
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Metrics - Wasted Energy - NYTimes.com - 0 views

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    It's gone before you even knew it was there: As energy is unlocked from fuels at power plants, two-thirds of the energy consumed to create electricity is lost. The laws of thermodynamics dictate that conversion efficiency will never be 100 percent, because heat is lost at every step of the conversion process. But new technologies may be able to greatly increase conversion efficiency, moving from an overall rate of 36 percent to closer to 50 percent. At present, coal - in all its carbon-belching inefficiency - is king because it's cheap. Still, the use of natural gas to create electricity has been rising rapidly, in part because of more-efficient gas turbines. Natural gas prices have been climbing, however, and coal prices could rise as well.
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Co-Production: Geothermal Energy from Oilfield Waste Water | Expertise | Borealis GeoPower - 0 views

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    Geothermal resources have been successfully utilized in many locations worldwide with significant economic rewards, but geothermal energy for electrical power is currently an untapped, power source in the Canadian energy market and specifically in Canadian oilfield operations. At present, this hot water resource is readily available through the existence of numerous deep, end-of-life oil and gas wells in the Canadian Foothills and the use of the hot water resource for electricity production has the potential to increase energy efficiency and offer carbon offsets for the oil and gas companies.
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Wiley InterScience: Journal: Abstract - 0 views

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    The storage of cold with ice slurries - a special type of thermally multi-functional fluids or phase change slurries (PCS) - is discussed. At first an example of a calculation of a thermal energy storage tank in an ice slurry system with a peak load demand is presented.
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Emissions from Photovoltaic Life Cycles - 0 views

  • Photovoltaic (PV) technologies have shown remarkable progress recently in terms of annual production capacity and life cycle environmental performances, which necessitate timely updates of environmental indicators. Based on PV production data of 2004–2006, this study presents the life-cycle greenhouse gas emissions, criteria pollutant emissions, and heavy metal emissions from four types of major commercial PV systems: multicrystalline silicon, monocrystalline silicon, ribbon silicon, and thin-film cadmium telluride. Life-cycle emissions were determined by employing average electricity mixtures in Europe and the United States during the materials and module production for each PV system. Among the current vintage of PV technologies, thin-film cadmium telluride (CdTe) PV emits the least amount of harmful air emissions as it requires the least amount of energy during the module production. However, the differences in the emissions between different PV technologies are very small in comparison to the emissions from conventional energy technologies that PV could displace. As a part of prospective analysis, the effect of PV breeder was investigated. Overall, all PV technologies generate far less life-cycle air emissions per GWh than conventional fossil-fuel-based electricity generation technologies. At least 89% of air emissions associated with electricity generation could be prevented if electricity from photovoltaics displaces electricity from the grid.
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Research Recap » Blog Archive » Solar Power Could Supply 69% of US Electricit... - 0 views

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    A massive switch from coal, oil, natural gas and nuclear power plants to solar power plants could supply 69% of the US's electricity and 35% of its total energy by 2050, according to Scientific American. However, $420 billion in subsidies from 2011 to 2050 would be required to fund the infrastructure and make it cost-competitive, the publication says in "A Solar Grand Plan" presented in its January 2008 issue.
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ECREEE Validation Workshop on Renewable Energy and Energy Efficiency Policies and Scena... - 1 views

  • The Commission of the Economic Community of West African States (ECOWAS) works towards a voluntary commitment to the Sustainable Energy For All Initiative of the UN Secretary General presented at the Rio+20. In a regional workshop, held from 25 to 27 June 2012 in Dakar, Senegal, the Directors of the ECOWAS Ministries of Energy agreed on the main targets and pillars of a regional renewable energy and energy efficiency policy of ECOWAS. The policies aim at the following objectives: Around 30% of the electricity consumption in the ECOWAS region will be saved through demand and supply side efficiency improvements by 2030. The share of renewable energy (incl. large hydro) of the total installed electric generation capacity of ECOWAS will increase to 35% in 2020 and 48% to 2030. The share of new renewable energy such as wind, solar, small scale hydro and bioelectricity (excl. large hydro) will increase to around 10% in 2020 and 19% in 2030. These targets translate to an additional 2.425 MW renewable electricity capacity by 2020 and 7.606 MW by 2030. To provide universal access to energy services it is envisaged that around 75% of the rural population will be served through grid extension and around 25% by renewable energy powered by mini-grids and stand-alone systems in 2030. By 2020 the whole ECOWAS population will have access to improved cooking facilities either through improved stoves or fuel switching to other modern forms of energy such as LPG. The share of ethanol/biodiesel in transport fuels will increase to 5% in 2020 and 10% in 2030. By 2030 around 50% of all health centers, 25% of all hotels and agro-food industries with hot water requirements will be equipped with solar thermal systems.
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PricewaterhouseCoopers Media Centre - 1 views

  • The study prepared by the European and international climate experts at PricewaterhouseCoopers LLP, the European Climate Forum, the Potsdam Institute for Climate Impact Research and the International Institute for Applied System Analysis, examines the potential for powering Europe and North Africa with renewable electricity exclusively by 2050 and the opportunities this transformation to the power sector presents.  The study provides policy makers and business leaders with clear direction and a step wise approach on how to achieve the 2050 vision.
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