I have photovoltaic panels over my house.
Don't remember exactly the size but is in the 10 square meters range (around
100 square foot, more or less).
The panels, placed at the correct angle, direction south, produces 1500
Watt (no typo, about 2 Hp) at noon in summer sunny day.
Disregarding efficency, if you have used 2 hp for 1 hour, you need 1hour of
sun at right angle...
Here, in Italy, the price is in the 10000-15000 $ range :-( maybe in USA is
a bit less, but not so much...
You can compute from this...

Paolo

My questions a

-- How many and which solar panels do I use?
-- What kind of a battery charger do I need?
-- What other equipment do I need?