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Ultra High Voltage Direct Current (UHVDC)
Energy From Wind Turbines Actually Less Than Estimated?
Wind Turbine via Shutterstock
The capacity factors and useful service lives of industrial wind turbines are important determinants of levelized wind energy costs. Some recent studies have brought to light the capacity factors are less and useful service lives are shorter than typically used in spreadsheet-based analysis by IWT promoters to obtain bank financing and...[read more]
Why the Power Grid Should Go The Way of the Shuttle
The final voyage of the Endeavour made its way to San Francisco and Silicon Valley on September 21, 2012. It was a gloriously beautiful day, and many people turned out to bid farewell to the fifth and final space shuttle. The shuttle program lasted thirty years, and has a remarkable record of accomplishments, such as being...[read more]
HVDC Takes Offshore Wind Farther in Germany
Eugene Suslo/Shutterstock
Offshore wind energy is one of the big sources of hope for a successful clean energy turnaround in Germany. The existing wind parks in the North Sea and the Baltic Sea, however, have a performance of only 200 megawatts (MW) altogether - low compared to countries like Great Britain, with a current offshore performance of almost 1600 MW, or Denmark, with 850 MW.[read more]
Why is China Investing $3.7 Billion in Direct Current Transmission Lines?
In the late 1880′s Thomas Edison and George Westinghouse waged “the War of Currents” , each battling to demonstrate the merits and advantages of Edison’s Direct Current distribution system and Westinghouse’s preffered Alternating Current distribution system.The quite bizarre antics that followed are the stuff of history now (and some...[read more]
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Scott Edward Anderson is a consultant, blogger, and media commentator who blogs at The Green Skeptic. More »
Christine Hertzog is a consultant, author, and a professional explainer focused on Smart Grid. More »
Gary Hunt Gary is an Executive-in-Residence at Deloitte Investments with extensive experience in the energy & utility industries. More »
Jesse Jenkins is a graduate student and researcher at MIT with expertise in energy technology, policy, and innovation. More »
Jim Pierobon is the former Chief Energy & Correspondent at the Houston Chronicle, a consultant and blogs at TheEnergyFix.com More »
Geoffrey Styles is Managing Director of GSW Strategy Group, LLC and an award-winning blogger. More »
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“Most hydro projects do not just serve as power generation but provide flood defenses and also a more regular irrigation source for the local land. I would go so far as saying the majority of the worlds dams produce electricity as an important byproduct while the flood protection and irrigation are their primary reason to be.”
“I'm afraid that our decision-making systems make any meaningful climate change action pretty much impossible before climate change actually starts having a direct, consistent and clearly attributable negative impact on the lives of a large portion of the electorate. It will probably take many more ppm for this to happen.In the meantime, the best we can do is to prepare for very rapid changes to ...”