Geothermal

President Obama spoke briefly about energy in his State of the Union address on Tuesday night, though he declared at the outset: “The all-of-the-above energy strategy I announced a few years ago is working, and today, America is closer to energy independence than we’ve been in decades.” That statement rejected recently expressed concerns from 18 […]

The Don A. Campbell geothermal power plant—a 16-MW base load complex located in Mineral County, Nev.—began full capacity operation on Dec. 6, 2013. The plant, named after the geologist who discovered the resource, is supplying electricity to Southern California Public Power Authority (SCPPA) under a Power Purchase Agreement. SCPPA, in turn, resells the power to […]

Germany’s levy to promote renewables under the 2008 Renewable Energy Act (EEG) will climb to €0.624/kWh in 2014—a 20% increase that represents nearly a fifth of residential electricity bills. The measure

Legislative efforts to establish a federal renewable electricity standard (RES) kicked up last week with the separate introduction of two bills by Senate Democrats. Sens. Tom Udall (D-N.M.), Mark Udall (D-Colo.), and Ben Cardin (D-Md.) on Oct. 29 introduced the Renewable Electricity Standard Act of 2013 (S.1595), a bill that would create a national standard of 25% renewable energy […]

Scaling is one of the most frequently occurring problems in geothermal power plants and can prohibit the control of well flow if it builds in the well or wellhead. At HS Energy on the Reykjanes Peninsula in

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 […]

A new report from the National Renewable Energy Laboratory (NREL) suggests wind and solar generation could become cost-effective without federal subsidies if they are sited in the most productive locations. “It is too early to say how strong the post-2025 market for renewables will be or whether it will be primarily market-driven or policy-driven. In […]

Oklahoma will seek a rehearing of its regional haze case against the Environmental Protection Agency (EPA) before the full 10th Circuit Court of Appeals, state Attorney General Scott Pruitt confirmed on Wednesday. On July 19, a divided three-judge panel threw out the state’s claims  that the EPA had “impermissibly rejected” a State Implementation Plan (SIP) […]

Te Mihi Power Station is a two-unit 166-MW geothermal plant currently undergoing commissioning on New Zealand’s North Island. It replaces the Wairakei Power Station constructed in 1958—but with a much smaller environmental footprint. The double flash technology selected produces ~25% more power from the same amount of geothermal fluid that is currently used at Wairakei. For its continuing commitment to renewable geothermal energy, Contact Energy Ltd.’s Te Mihi Power Station is the winner of POWER’s 2013 Marmaduke Award for excellence in power plant problem-solving. The award is named for Marmaduke Surfaceblow, the fictional marine engineer and plant troubleshooter par excellence.

Even though it enjoys sizeable coal and natural gas reserves, Indonesia struggles to provide electricity to its growing economy. Geography is its most obvious challenge. Others include evolving international markets and an energy sector that remains highly politicized.