Samsung SDI has signed a 1 gigawatt-hour (GWh) energy storage system supply agreement with U.S. power developer Alpha Omega Power. This latest agreement, reached through Samsung SDI's Michigan subsidiary, brings its total contract value with Alpha Omega Power to 1.5 GWh. Battery cells and modules will be produced at the StarPlus Energy plant in Kokomo, Indiana, with delivery planned by the end of the year.