Combination DC-AC System

Combination DC-AC System This kind of system can have AC loads as well as DC loads. By wiring your house for both DC and AC appliances, you can have the option to use direct DC power for more efficient fans, refrigeration and water pumping; and AC for using commonly available household appliances such as compact fluorescent lights, vacuum cleaners, washing machines, kitchen appliances, computers, and power tools. This system is for a full-time residence and requires a considerably larger PV array (8 to 16 modules) and battery bank (800 to 2000 amp hours) than the DC only system. Costs of this system can range from around $2500 on up depending on particular household demand.