OutBack Power Technologies, Inc., a designer and manufacturer of advanced power electronics for renewable energy, announced Hawaiian Electric Companies has approved OutBack Power's Radian, FX and FXR multi-mode inverter/chargers for Transient Overvoltage self-certification . OutBack's products are the first battery-backed inverters to qualify for HECO's stringent "ultra-fast trip" requirements, overcoming the utility's perception of grid instability and providing customers the opportunity to control their own energy future.