Off grid system on fickle Hill Supervisor: Ben Scurfield

With off-grid systems a different type of inverter is required. An Outback inverter was used for this home. A charge controller is also included on the right side of the unit to ensure proper charge of the batteries. The batteries need to be charged at a certain rate and for a particular amount of time to keep the batteries from overcharging. A gas release tube is needed to prevent hydrochloric gas from entering the fuse box or room.

System overview:

• .8 kilowatt
• 4 panels
• Inverter: Outback
• Off grid system with battery back up
• 120 volts

Cost:

• $15,000

Efficiency:

• 20% efficient panels
• 91% efficient in conversion in inverter
• <1% line loss
• Additional 10% loss from chemical transition to and from batteries