Hartley has the capability to produce up to 13.1 kilowatts of electricity on a sunny summer day.. We have two solar arrays, one stationary mounted on our roof and a tracking system next to the parking lot. The panels are manufactured by RWE-Schott Solar, and are rated at 165 watts each. Our system is grid-tied, meaning that when we produce more electricity than we are using it flows back into the electrical grid and we are credited for it on our bill. The power that is produced by the panels is Direct Current, so it has to be converted to Alternating Current before it can be used. We have six Sunny Boy inverters that convert it to AC and also keep track of our power production.