Based on your numbers for solar power, I can cover my monthly electric usage by having a 4mx4m set of panels. I probably have room for twice that much on my roof.
Using your numbers, assuming 8 hours of sunlight
1.5 kW * 0.1 efficiency * 8 hours/day * 16 sq-m = 19.2 Kw-hours per day
OR
576 kw-hours per month
(And even more in the summer due to longer days).
I know it would take a decade or so to recoup initial purchase and installation, but why is solar power such a bad idea for home use ?
