The inverter is the heart of any modern off grid renewable energy system. Inverters take wind and solar power and transform it into consumer friendly 120/240 VAC power. Many inverters perform more than this basic function; they can automatically start a back up generator to recharge the very batteries they draw from; they can control other devices via built in "extra" relays and programming. Inverters should be sized to handle the peak load of your installation, however be aware peak output from an inverter is usually 2X rated capacity. Most quality inverters feature a sleep mode which enables the unit to turn itself off when not needed, thus saving power. Simply turn on a light and the unit instantly awakes and presto, there is the light for you! Silicon Solar knows inverters, their abilities and accessories; trust Silicon Solar to supply you with the "heart' of your system.