Anaheim's electric system supports a diverse customer base and has a historic peak demand of 593 MW. Distinguishing features include commissioning the nation's first underground substation in 2006, undergrounding over 136 circuit miles as part of an aggressive underground conversion program, and operating a 2.4 MW photovoltaic system on the roof of the Anaheim Convention Center, one of the largest solar arrays on a municipally-owned convention center in the country.

APU provides electricity to its customers from a wide array of renewable resources including landfill gas, geothermal, wind, and solar. Currently, renewables comprise over a third of APU’s retail sales and will increase to 60% by 2030 for enhanced sustainability and compliance with statewide mandates.