I am also not an expert. I just hope some expert could give some ideas. If the entire roof is made of solar cells would that be sufficient to 1) light up you house, 2) Refridgerate your food 24 hours daily 3)give power to TV and PC from 19:00-23:59 4) Provide hot water shower for typical family of 4 people 5) Power air cond while you sleep.