1. Elements of a Small Off-Grid 24 Volt Solar System (Installed by Mack Grady at Gary Grady’s cabin, 15 miles north of Silverthorne, CO, in the Gore Range. 9200’ elevation)

2. Cabin originally had only a 120Vac generator to power house wiring and water pump about 1 hour each day. There was no battery system.

3. 150W Pair on a good day, 1kWH Watch out for shadows Essential Load!

4. Straddles the Roof for Best Azimuth Angle Separate grounding cable for lightning protection goes straight down to single-point ground rod Use outdoor-rated UV wiring

5. Box for DC connections and breakers PV battery charge controller 1100W Inverter AC box and breakers for inverter output feed a separate set of inverter- powered outlets in the cabin DC lightning arrestor Ground wire connects all metal boxes to the single-point ground rod Battery charger from portable generator

6. DC breaker from panels to controller DC breaker from controller to batteries DC breaker from batteries to inverter DC breaker from battery charger to batteries Battery charger from portable generator PV battery charge controller 1100W Inverter DC lightning arrestor

7. Inverter on/off switch goes to kitchen Inverter output to AC breakers Cables to battery breaker

8. Four 6 Volt, L6 Batteries in Series (24 Volt System) in a Homemade Vented Box Battery temperature sensor goes to PV charge controller