Hitachi Ltd. unveiled an energy-storage system that the company said will support wind and solar power and allow users to sell electricity into deregulated markets such as California.
The units can be installed on high-voltage power lines, and will be able to capture excess energy produced by wind and solar sources so it can be sold back into the network when the demand for power exceeds the supply. The systems, which include telecommunications and lithium-ion battery technologies developed by Tokyo-based Hitachi, will also minimize volatility on the power grid, company officials said today at a press conference in Washington.
