Gateway Energy Storage LLC, a unit of LS Power Development LLC, seeks an order from federal regulators directing San Diego Gas & Electric Co. to provide transmission and grid-connections services to deliver the output of its battery storage system onto the California grid. The commission’s consent is needed to preserve the status of San Diego Gas & Electric as a “local furnishing utility” that qualifies for tax-exempt bonds for financing transmission, distribution, and generation facilities. Gateway requested approval by Sept. 15 so that the battery facility, under development in San Diego, can achieve its expected commercial operation date in January 2020.