We had an independent electrician do a little something named an amp attract to find out the level of energy desired and we have been advised we needed at the very least a 20kW generator. We settled over a Generac Model 7042. Our electrician told us to check out AP https://smartflowersolar20763.elbloglibre.com/22517112/helping-the-others-realize-the-advantages-of-smartflower-solar