Just some comments: 1) Have a native English-speaker do some proof-reading and tone down the level of excitement to a credible level. The overall idea makes se

Just some comments: 1) Have a native English-speaker do some proof-reading and tone down the level of excitement to a credible level. The overall idea makes sense. 2) I've been in apartment buildings in SE Asia without window awnings where direct sunlight made the unit literally an oven. In that region, AC is $1000+/month when adjusted for COLA, so they try not to use AC. There is a huge market for a $100 window-mounted solar draw fan that doesn't necessarily need a battery or even an electricity output - just rotate the draw fan during sunlight. 4) FYI: In the Bay Area, you don't have much of a choice in grid provider. PG&E covers 100% of the region, and there's one local utility on the Peninsula and one in Alameda, last I heard. They all prioritize hospitals and emergency services, so in a blackout, may not provide expected redundancy.