Small DC (or AC) System

Small DC System This type of system is ideal for a weekend cabin or for an RVer whose main priority is lighting, home entertainment, or pumping water on an intermittent basis. One or two PV modules and a small to medium-sized (100 to 800 amp hours) set of batteries comprise the main components of this type of system. All loads are powered by 12-volt DC battery. The loads can be 12 volt appliances or if a small inverter is used (100 to 200 watt) 120,VAC appliances. An inverter is a device that converts low-voltage DC current into 120 AC. Self regulating type PV modules are sometimes used in this type of system to keep it simple. Cost of a system of this size may range from $600 to $1500.