A tiny power plant notched a big win last month off the coast of Oregon: For nearly 30 seconds, it generated electricity using the heat of an underwater volcano. The startup Endurance Energy deployed its test unit, called Adélie, about a mile below the surface of the Pacific Ocean during a three-week demonstration…

A global supply shortage and U.S. tariffs have roiled the aluminum market this year, putting greater pressure on the United States to produce more of its own metal. Plans to build or reopen giant smelters are moving forward , but they all hinge on securing huge amounts of cheap power — at a time when data centers are…

After halting construction on offshore wind farms and canceling leases for future projects, the Trump administration just took another step to erode America’s troubled offshore wind industry. The Interior Department wants to reevaluate a key approval for Revolution Wind — a $6.2 billion project that is already…

America’s energy supply crunch is driving a surge of federal and private investment in new electricity generation — from polluting gas turbines to cleaner developments like solar farms and geothermal plants. But gigawatts of power are already available for the taking across the U.S. economy in the form of wasted…

The geothermal startup Fervo Energy is now selling power to the grid from its Cape Station project in Utah — marking the first time a utility-scale, next-generation geothermal facility has achieved such a feat worldwide. The Houston-based firm turned on an initial 33-megawatt unit late last week and has been testing…

NEW YORK CITY — The enormous blades and hubs of offshore wind turbines are sprawled across a waterfront lot in Brooklyn, as a yellow lifting crane named Big Benny looms overhead. The energy firm Equinor is storing components here before shipping them out to Empire Wind , a 810-megawatt installation that is set to…

NEW YORK CITY — School districts nationwide are grappling with record diesel prices this fall as they resume shuttling students back and forth. But filling up isn’t a problem for some of the newest buses in New York City. That’s because these 10 long, yellow vehicles plug into the electric grid. On a clear, sunny…

The startup Mazama Energy just nabbed $135 million to accelerate its next-generation geothermal activities near Oregon’s Newberry Volcano. Mazama is seeking to generate clean electricity from superhot rocks — an emerging and largely unproven approach that could have an enormous payoff for the power sector. That’s…