Newbie question about DIY solar panels on the rooftop.
Ok after spending some time on YouTube I've learn about wind and solar power. I am really getting into saving power I've dropped approx 500 kwh in just 2 months by burning wood and paying attention to details. Tho I really dig the wind turbines, I've found that solar is more practical in the per watt cost. There is one thing that I can't understand. When I first started reading, I thought I could power my 2000 at home for $2000 and not have a power bill. I've learned a lot in just 2 days but I've seen DIY people purchasing grape panels from Home Depot at 250 watts each x 4 and claim to make 4kwh per day. Ok, fast forward to last night and a similar setup but with 16 of those same sized panels on the roof were making the meter spin backwards. Now this confuses me. How can 4 panels on one home make 4 measly kwh and A home with 4 x that produce enough power to spin the meter backwards? Shouldn't 4 times the panels make 4 times the kwh? So the 2nd setup should be 16kwh per day? Can someone shed some light on it? No pun intended.
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