Eguana Technologies Inc. announced that its AC Battery is the first energy storage device to be approved by the Hawaiian Electric Company under their new advanced interconnection requirements. When paired with the E-Gear Energy Management Controller as part of the E-Gear BESS, the integrated system now supports residential PV interconnection under Hawaii's new Customer Self-Supply tariff. E-Gear has started building BESS inventory in Honolulu with deliveries scheduled to ramp through the first quarter.