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Battery energy storage has exploded in deployment over the past several years, but the majority of it by capacity, especially in North America, is deployed at grid scale. That may be a problem, because a new study from the Rocky Mountain Institute (RMI) suggests the greatest value to the system lies with behind-the-meter batteries—distributing battery […]

Xcel Energy said on Oct. 2 that the company would accelerate its transition from coal power to cleaner energy sources by retiring two units at its Sherburne County Generating Plant (Sherco) in Becker, Minn. The decision is part of the company’s strategy to cut carbon emissions 60% by 2030. The Sherco plant is Xcel’s largest […]

The Environmental Protection Agency (EPA) on Oct. 1 released the final version of new National Ambient Air Quality Standards (NAAQS) for ozone, cutting the current limit of 75 ppb to 70 ppb. The move sets the stage for a battle with Congress, the states, and a range of industries that have warned the new ozone […]

After years of stressing the conventional virtues of geothermal power production—reliable, baseload renewable energy from geological sources—the geothermal industry and the U.S. government are looking at ways technology can change the hot rocks game and give a boost to an often-overlooked resource. Legendary venture capitalist Vinod Khosla, who made a pile of money in information […]

By now, power industry watchers are familiar with how U.S. interests are reacting to the Environmental Protection Agency’s final release on August 3 of the Clean Power Plan. But what about the rest of the world—especially Europe, which has long been seen as taking a stronger stand on greenhouse gas emissions? Some key European officials […]

Despite media headlines and coal industry hand-wringing, reports of coal’s death have been greatly exaggerated, to adapt Mark Twain’s famous (but misquoted) comment. What’s more, some of the coal sector’s current suffering is the consequence of self-inflicted wounds. Throughout the dog days of summer, the financial pages in dozens of U.S. newspapers have run headlines […]

If you’re looking to generate distributed power with gas, your options are broader than ever, with a range of efficient, clean-burning technologies to chose from. Knowing which option is the right one depends on a balance of site constraints, fuel supplies, and environmental oversight. When California State University San Marcos (CSUSM), a 14,000-student university north […]

Though newer distributed generation options like microturbines, solar, and batteries have grabbed the headlines, diesel remains the go-to option because of its established technology and reliability. But growing competition and new regulations are threatening its traditional role. Here’s what diesel is doing to stay relevant. If you pay attention to nothing but the headlines in […]

Utility-scale energy storage in the form of pumped water storage has a long history. One of the oldest U.S. plants found itself in need of an upgrade after 40 years of service. Having the right equipment for the job is proving to be essential. With the current power market challenges and increasing amounts of variable […]