Materials group Cemex has invested in Californian start-up Energy Vault, a firm that has found a way to store energy inside concrete blocks using a system inspired by pump-storage hydroelectric plants.
Energy Vault’s solution uses the same fundamentals of physics and kinetic energy as pumped hydro but replaces the water with custom made cylindrical blocks.
Energy Vault said: “These low-cost blocks, combined with our patented system design and some very clever control software, has allowed us to deliver all the benefits of a pumped hydro system but at a much lower price, starting size and without the need for hard to find topography.”
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