This Boston startup created renewable energy storage that’s 10 times cheaper than lithium-ion batteries // Fast Company
Professor Asegun Henry founded Fourth Power, a startup aimed at cutting the cost of storing renewable energy. Its technology is designed “to tap into excess renewable energy. That energy heats up liquid tin, which flows down carbon pipes to heat up the blocks. When the grid needs electricity again, the system generates it using special solar panels that run on the white-hot light from the pipes rather than sunshine. Because the system was designed for durability, the team expects it to last for three decades — far longer than lithium-ion batteries, which quickly degrade.”
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