Study determines best arrangement of tidal sails device

In the long sprint to find new sources of clean, low-cost power, slow and steady might win the race—the slow-moving water of currents and tides, that is. Just as wind turbines tap into the energy of flowing air to generate ...

Changing climate poses threat to power plants, US report says

Power plants across the country are at increased risk of temporary shutdown and reduced power generation as temperatures and sea levels continue to rise and water becomes less available, the Department of Energy said Thursday.

Germany to pull plug on solar subsidies by 2018

Germany will stop subsidising solar energy by 2018 at the latest, its environment minister said Monday after last year initiating a scaling-back of generous state support for the faltering industry.

China offers solar panel quota to settle EU feud

China has offered a quota for its solar panel exports to the European Union, state media reported Friday with the two sides embroiled in a series of trade disputes.

Cheaper solar panels fuel rise in renewable energy

A dramatic drop in the price of solar power technology last year helped the continued growth of renewable energy, according to a U.N.-backed report published Wednesday.

Wind power blows into Africa

Giant turbines churning in the wind are a rare sight in Africa—but that will not be the case for long. Until now the meagre amounts of investment in African wind energy have predominantly come from governments and foreign ...

Saudi Arabia looks to NREL for solar monitoring expertise

Saudi Arabia is planning to move aggressively into renewable energy, with plans to install more solar and wind power in the next 20 years than the rest of the world has installed to date. The Kingdom of Saudi Arabia is working ...

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Watt

The watt (pronounced /ˈwɒt/ wot; symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736–1819). The unit, defined as one joule per second, measures the rate of energy conversion.

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