BaroMar, an Israel-based startup, has ambitious plans to use compressed air as a long-term energy storage solution that could deliver grid-level storage at cost-effective rates. To test out its technology, the company is building a four-megawatt-hour pilot project in Cyprus and will store this air on the sea bed, the company said.
Lithium-ion batteries, which work great for applications like electronic devices and even electric cars, fall short in large-scale energy storage. Not only is the infrastructure expensive to install, but the systems also suffer from issues like loss of charge and deterioration of storage capacity over the years. BaroMar refers to its technology as Compressed Air Energy Storage . Much like other lithium alternates, the principle of the technology is rather straightforward.
During energy demand, air is released, and the higher pressure is used to run some sort of generator, where electricity can be generated and supplied to the grid. The tanks, which can be submerged to depths of up to 2,300 feet , are designed with water-permeable valves. When installed, the tank will fill with seawater, and the compressor running on land will begin pumping compressed air at pressures as high as 1,015 psi .
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