La société de batteries géantes Deeya Energy réalise une levée de fonds 30 millions de dollars

 California start-up. Deeya Energy said on Tuesday it raised $30 million to build "redox flow batteries" which it says will be a competitively priced way to replace diesel generators and store wind and solar energy. Deeya Energy is one of many start-ups targeting large-scale storage systems which can act as back-up power for commercial applications, such as telecommunications towers, or electricity grid storage. The company's basic technology was first developed in the 1970s as part of a NASA research program. A flow battery uses electrolyte solutions of reactive chemicals that flow between two tanks to deliver an electrical current.