*Knowing the square footage of your home will not help us in determining system size because electrical consumption habits vary and are not proportional to square footage.
*Knowing the dollar amount of your monthly bill will not help us determine system size because rates vary and tiers make it nearly impossible to derive your kWh consumption.
*Grape Solar recommends using deep-cycle sealed AGM batteries. Due to the high price of shipping batteries, Grape Solar does not sell them but can recommend a local dealer.