FILE - An employee works at a battery energy storage facility in Saginaw, Texas, April 25, 2023, that is owned and operated by Eolian L.P. The U.S. Department of Energy on Friday, Sept. 22, announced a $325 million investment in long-duration battery storage projects.
Batteries are increasingly being used to store surplus renewable energy so that it can be used later, during times when there is no sunlight or wind. The department says the projects will protect more communities from blackouts and make energy more reliable and affordable. Storage that can keep putting out energy from sundown to sun up, or for several overcast days at a time, is the fervent work of thousands of engineers around the world right now because it's a serious way to address climate change, by allowing natural gas or coal-fired power plants to turn off.
“Regions where solar power and wind power are growing rapidly are often the most interested in long-duration storage. In the U.S., we see a lot of interest in this technology coming from places like California, New York and Hawaii,” said Amanda Smith, a senior scientist at Project Drawdown, a group that publicizes actions that can be taken to address the climate disruption that has already touched large swaths of the planet.
Another project led by Rejoule, a battery diagnostics company, similarly will use retired EV batteries at three locations, Petaluma, California; Santa Fe, New Mexico and a worker training center at the Red Lake Nation, not far from the border with Canada.
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