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Colin Bennett

Wind power: Europe wants to pick your brains - 0 views

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    The European Commission is currently in the process of dreaming up an offshore wind power action plan and it's put a shout out for anyone with an opinion to come forward.
davidchapman

Expert: All electricity from renewable sources - 0 views

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    Given the political will, Europe could within a few years meet 100 percent of its electricity needs from renewable energy sources, at no cost difference to today's fossil fuel-based system. The scenario includes the construction of a high-voltage direct current European super grid linking all countries in Europe, and the continent externally to Africa and the Middle East.
Hans De Keulenaer

Sustainable energy blueprint | Gristmill: The environmental news blog | Grist - 0 views

  • The three primary, longer-term objectives for the nation's energy policy should be: reduce greenhouse gas emissions to a level consistent with a world-wide goal of global climate stabilization (assumes curbing U.S. CO2 emissions by 60-80% from current levels by mid-century); eliminate U.S. energy imports (i.e., oil and natural gas - now 58% and 15% respectively), while reducing overall use of oil and natural gas; phase out the current generation of nuclear power while substantially curbing the production and consumption of fossil fuels, by increasing the use of energy efficiency and making a transition to sustainable, environmentally safer renewable energy sources.
Hans De Keulenaer

The Energy Blog: 1.2 MW Tidal Energy Turbine Ready for Installation - 0 views

  • According to a June 6, 2007 press release by Marine Current Turbines Ltd (MCT), the installation of its 1.2 MW SeaGen commercial tidal energy system will commence during the week of August 20th in Northern Ireland’s Strangford Lough. SeaGen will be the world’s largest tidal current device and will generate clean and sustainable electricity for approximately 1000 homes. Being a full size prototype, no scale up will be required for future commercial installations.
Hans De Keulenaer

Kirchoff's Laws - 1 views

  • To all, who know how to solve the problems mathematically, something for you all? Please solve it Kirchoff’s Current Law (KCL): At every node, the sum of all currents entering a node must equal zero. Kirchoff’s Voltage Law (KVL): The voltage law says that the sum of voltages around every closed loop in the circuit must equal zero.
davidchapman

World's Largest Thin Film Roof-Top Power Plant Goes Online - 0 views

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    The world largest thin-film rooftop photovoltaic power plant was connected to the grid Wednesday after four months of construction. Over 37,000 First Solar thin-film modules have been installed on the 90,000 sqm large rooftop of a logistic centre in Ramstein, Germany. Three inverters convert the continuous current into alternating current. Under the supervision of COLEXON up to 40 mechanics and electricians were working at the construction site. Thorsten Preugschas, board member of RPSE AG, is proud of the success:" With this landmark project we were able to confirm our strong position as a project developer, demonstrating high product and service quality, a quick implementation and excellent price-performance ratio for our costumers." The solar power plant will produce about 2.4 million kWh per year. Based on a feed-in tariff of 46.3 cent/kWh the installation will earn over 1.1 Mio Euro per year. This also accounts for saving of 2 tonnes of CO2 emissions per year.
Arabica Robusta

Biofuels and Food Security should be a very important aspect of this group - 154 views

I agree that biofuel is a dead end, and in fact is perhaps worse than the disease. I will cross-post some recent articles I have found on biofuels and the scramble for African land (and land elsew...

renewables food bioenergy

Colin Bennett

Kenya to Have Africa's Largest Windfarm Built by 2012 - 0 views

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    Africa's most ambitious project of renewable energy will be the installation of 365 giant wind turbines around Lake Turkana in northern Kenya. The project will be completed in 2012, when the £533m project will have a capacity of 300MW, a quarter of country's current capacity.
Colin Bennett

US Wind in 2009 - 0 views

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    Building off sharp growth in 2007‐2008, US wind power development in 2009 has been impacted dramatically by the current economic climate-and US wind players must readjust their strategies in the wake of this new competitive environment. The US wind power industry finished 2008 at a record pace with 8,546 MW of new wind plant added, led by Texas, Iowa, New York, Kansas, and Wyoming. EER forecasts a sharp decline in 2009, but a rebound in 2010 and growth of 12 GW per year on average from 2010‐2020 to supply nearly 14% of total US power demand.
Jeff Johnson

Engineering a Smart Grid For Energy's Future - washingtonpost.com - 0 views

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    The process, Current says, lets a utility more efficiently manage the distribution of electricity by allowing two-way communication between consumers and energy suppliers via the broadband network on the power lines. Based on data they receive from hundreds of homes, utilities can monitor usage and adjust output and pricing in response to demand. Consumers can be rewarded with reduced rates by cutting back on consumption during peak periods. And computerized substations can talk to each other so overloaded circuits hand off electricity to underused ones, helping to prevent blackouts.
Gina-Marie Cheeseman

Increasing Efficiency In Wind Power - - 0 views

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    Despite the current economic crisis, there is good news for the U.S. wind power sector: R&D is paving the way for increased efficiency in wind power.
Colin Bennett

ABB secures power line order in Brazil - 0 views

  • ABB will deliver five turnkey 34.5/69kV substations including 12 step-up power transformers rated at 33MVA, air and gas-insulated switchgear, medium-voltage reclosers, and distribution transformers. The company will also supply and install 60km of 69kV overhead transmission lines to connect a 290MW wind farm to the national electricity grid that is currently under construction in the northeastern state of Bahia. According to ABB, Brazil currently has around 600MW of wind power capacity, with another 450MW under construction.
Hans De Keulenaer

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.
Jeff Johnson

Friedman: Learning to Speak Climate (NYTimes) - 0 views

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    Some countries have vintage whiskey. Some have vintage wine. Greenland has vintage ice. Sometimes you just wish you were a photographer. I simply do not have the words to describe the awesome majesty of Greenland's Kangia Glacier, shedding massive icebergs the size of skyscrapers and slowly pushing them down the Ilulissat Fjord until they crash into the ocean off the west coast of Greenland. There, these natural ice sculptures float and bob around the glassy waters near here. You can sail between them in a fishing boat, listening to these white ice monsters crackle and break, heave and sigh, as if they were noisily protesting their fate. Greenland is one of the best places to observe the effects of climate change. Because the world's biggest island has just 55,000 people and no industry, the condition of its huge ice sheet - as well as its temperature, precipitation and winds - is influenced by the global atmospheric and ocean currents that converge here. Whatever happens in China or Brazil gets felt here. And because Greenlanders live close to nature, they are walking barometers of climate change.
Sergio Ferreira

Middlemen helping small businesses tap green power - 0 views

  • That is one reason for the rise of renewable energy middlemen like Clean Currents in Washington, D.C. The company bundles small businesses that want to buy wind power credits and submits a collective application to a utility. The businesses get better rates, and Clean Currents pockets a 1 percent commission.
Hans De Keulenaer

Feed-in Tariffs in Ukraine ranking among the highest in Europe - Environmental technolo... - 0 views

  • Ukraine seeks to reduce its current dependency on gas imports. To address the issue, a number of initiatives are being taken which are aimed at boosting energy efficiency, introducing energy saving technologies and renewable energy resources. The feed-in tariffs effective since April 2009, rank among the highest in Europe, which considering the saturated European market, makes Ukraine especially luring for the foreign investors in the field. As forecasted by the government, in the next 3-4 years Ukraine will be able to attract about 3 billion dollars of private investments for the development of renewable energy production.
Hans De Keulenaer

Screening Africa's renewable energies potential - News & events - JRC - European Commis... - 1 views

  • The JRC has published a study mapping the potential of renewable energy sources in Africa. The report analyses the continent's current energy consumption and assesses potential of renewable energy sources - solar, wind, biomass and hydropower - and their cost efficiency and environmental sustainability.
Hans De Keulenaer

Breakthrough on energy efficiency deal - 2 views

  • ALDE MEP Fiona Hall (UK, Liberal Democrats), who took part in the negotiations with Member States on the Energy Efficiency Directive on behalf of the Liberals and Democrats, has welcomed the deal brokered last night. Commenting on the deal, she said: "Although the text in Article 6 on the energy efficiency obligation schemes is not as strong as the Parliament wanted, it is an important achievement that for the first time ever Member States will have to have a long term strategy with policy and measures in place for dealing with the energy efficiency of their buildings. "In addition, the Parliament secured an early review of the deal in 2016 including of the exemptions that currently weaken Article 6. "Thanks to the changes insisted upon by the Parliament, the directive will now achieve 17% of the 20% energy efficiency savings needed by 2020 - as compared to less than 15% before last night.
Energy Net

Amory Lovins on the Transition to Renewables & How They Enhance Security and Sustai... - 1 views

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    "In the wake of the BP Gulf oil disaster, the natural gas explosion in Texas this month and the coal mine diaster earlier this year. It seems like public consciousness is finally shifting. While being green and supporting renewable energy was a good public relations move for the last few years, it now seems like a practical one as well to prevent disasters like these from occurring again. It seems like the mood is ripe for the transition to renewables and other sustainable energy technologies to begin in earnest. I had the chance to sit down with Dr. Amory Lovins, chief scientist and co-founder of the Rocky Mountain Institute, to talk about how the transition to renewables will make the U.S. energy system more secure and stable and where the country currently stands in that process."
Energy Net

DOE Loans to Make Nevada the "Saudi Arabia of Geothermal Energy" | Inhabitat ... - 0 views

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    "The Silver State-based company has developed the Faulkner 1, a 49.5 MW geothermal power project at NGP's Blue Mountain site in northwestern Nevada. Currently, the project is planning two new injection wells to enhance the distribution of injected fluids and further augment the plant's power output. As such, the DOE is acting as loan guarantor for up to 80 percent of the $98.5 million loan to NGP for the scheme. As part of the Obama administration's Recovery Act, alternative energy has seen a real increase in investment with projects such as the Cape Wind Farm being finalized. Recent tragedies such as the Gulf of Mexico oil spill have only solidified support for alternative energy. Geothermal projects haven't dominated headlines like solar and wind projects have, but US Senator Harry Reid hopes to see that change. Speaking about the DOE's support, Senator Reid said, "I am glad to see economic recovery funding being used to put Nevadans to work on a project that will help us achieve energy independence" He went on to say, "Northern Nevada is the Saudi Arabia of geothermal energy.""
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