Wind

A new study from Stanford University suggests that, if the overall amounts of fuel and electricity required to build and operate energy storage technologies are factored in, grid-scale batteries make sense for

A tremendous amount of offshore wind capacity—from 100 MW to 13,000 MW—is expected to play a major role in Germany’s transition to sourcing 80% of its power from renewables by 2050. However, Energiewende

Norwegian energy company Statoil last week canceled its $120 million project to put four 3-MW wind turbines on floating spar-buoy structures 12 miles offshore of Maine’s Boothbay Harbor. The Maine Public Utilities Commission (MPUC) had in January 2013 approved terms of Statoil’s proposed Hywind Maine project, and the Bureau of Ocean Energy Management last year […]

Greenhouse gas (GHG) emissions from power plants plunged 10% in 2012 largely due to the coal-to-gas switch and a slight decrease in power production, the Environmental Protection Agency (EPA) said on Wednesday. Earlier this week, the Energy Information Administration (EIA) reported similar findings. The EPA’s 2012 data from its GHG Reporting Program, which collects annual […]

A federation of Germany’s biggest companies last week called for urgent reforms to the country’s renewable energy strategy within the first 100 days of Chancellor Angela Merkel’s newly elected government, including abolishing feed-in-tariffs (FITs) that they say have sent power prices in the country soaring. Key points of the 19-page reform proposal submitted by the […]

California’s drive to add flexibility to its grid in response to expanding renewable generation took another step forward in September as NRG Energy commissioned two new fast-start units at its El Segundo Energy Center near Los Angeles. The two units, with a combined 550 MW capacity, represent the second Siemens Flex-Plant to go into commercial […]

A prototype 100-kW floating wind turbine that has been tested off Nagasaki near Japan’s Kabashima Island since May 2012 is slated to be replaced by a full-scale, grid-connected 2-MW wind turbine this fall

POWER Associate Editor Sonal Patel reported on Sept. 12 that “nearly 100 renewable energy and environmental groups and businesses have asked the Energy Information Administration (EIA) to reevaluate renewable energy forecasts, alleging the agency’s projections don’t reflect ‘the current status and recent, real-world growth rates of renewables.’” The EIA forecasts are presented in its Annual […]

Much attention has been devoted recently to the increased cycling that is necessary in fossil plants as more renewable capacity is added to the grid, but data on the precise impacts has been slight. Now, a new study from the National Renewable Energy Laboratory (NREL) aims to correct that. The key findings: While cycling would increase […]

Nearly 100 renewable energy and environmental groups and businesses have asked the Energy Information Administration (EIA) to reevaluate renewable energy forecasts, alleging the agency’s projections don’t reflect “the current status and recent, real-world growth rates of renewables.” In a Sept. 10 letter to EIA Administrator Adam Sieminski, the coalition says the agency’s estimates in past […]