The US Department of Energy is funding a pilot project to demonstrate the commercial viability of storing energy in heated sand, which is capable of producing 135 MW of power for five days. April 4, 2024 Image: Joe DelNero, National Renewable Energy Laboratory From pv magazine USAThe NREL team’s computer modeling has shown that a commercial-scale system would retain more than 95% of its heat for at least five days, the national laboratory said in a press release.The US Department of Energy will...