POWERnews

Entergy Corp. on Monday asked a federal court to stop Vermont from closing its Vermont Yankee nuclear power plant next year. Federal nuclear regulators last month extended the plant’s operating license by 20 years, but Entergy still requires a state permit.

Liberal and conservative U.S. Supreme Court justices on Tuesday skeptically met arguments that power plant owners that emit global warming–causing greenhouse gases (GHGs) can be sued for damages. Justices questioned the court’s jurisdiction to decide on emissions standards, the vast scope of the case, and factors to assess the best available technologies to curb GHG emissions.

An internal investigation has shown that hydrogen gas, which had not been fully purged from the generator during unit maintenance at the coal-fired L.V. Sutton Steam Electric Plant in New Hanover County, N.C., ignited and caused an explosion that killed one worker on March 15, Progress Energy said in a statement.

The Department of Energy (DOE) on Monday announced a conditional commitment for a $2.1 billion loan guarantee to support Units 1 and 2 of Solar Trust of America’s Blythe Solar Power Project. The two-unit 484-MW concentrating solar thermal plant will be built near Blythe, in Riverside County, Calif.

Plans to build and operate the Cape Wind project nearly 5 miles offshore in Nantucket Sound, Mass., were approved on Tuesday by the Department of Interior’s Bureau of Ocean Energy Management, Regulation, and Enforcement (BOEMRE). Cape Wind Associates now says that construction of what could be the first U.S. offshore wind farm could begin as early as this fall, but the controversial project must still overcome several hurdles.

The Nuclear Regulatory Commission and the U.S. Army Corps of Engineers (USACE), Charleston District, have completed the Final Environmental Impact Statement (FEIS) for the Combined Licenses (COL) for the proposed V.C. Summer Units 2 and 3 reactors, concluding that there are no environmental impacts that would preclude issuing the COLs for construction and operation of the proposed reactors at the site, near Jenkinsville, S.C.

In 2010, only 5,116 MW of nameplate wind capacity was added in the U.S.—a nearly 50% drop from the record 10,000 MW installed in 2009, the American Wind Energy Association (AWEA) said in its newly released annual report. The industry group said, however, that wind power capacity added in 2010 made up 26% of all new generating capacity added in the U.S.—second only to natural gas.

Solar power in the U.S. received multiple boosts in the past week as the Department of Energy (DOE) finalized $2.7 billion in loan guarantees for solar projects in California while making available $170 million in funding for solar photovoltaic (PV) technologies, and GE Energy announced plans for what it said will be the biggest solar PV panel factory in the U.S.

On Tuesday, Japan’s Nuclear and Industrial Safety Agency (NISA) provisionally raised the accident rating for three reactors at the crippled six-unit Daiichi nuclear plant in Fukushima Prefecture to Level 7—making it a “major accident” and putting in on par with the 1986 Chernobyl accident in the Ukraine. And today the Tokyo Electric Power Co. (TEPCO) confirmed damage to spent nuclear fuel rods stored in the Unit 4 building.

The Nuclear Regulatory Commission (NRC) on Friday told Unistar Nuclear Energy it could not issue the company an operating license for its planned reactor at Calvert Cliffs in Maryland because it was fully owned by France’s Électricité de France (EDF)—a foreign entity.