Quote:
Originally Posted by Axaday
When you are buying solar panels, a 1 kw system does not generate 1 kwh/hour. It generates 1 kwh/day. At $1 per watt, 1 kw costs $1000 and generates 365.25 kwh/year. Electricity costs 9 cents here, so the $1000 system generates $32.87 worth per year. That's a 30.42 year payoff.
Where you live, it is a 9090.9 DAY payoff, not hour. So 24.89 years.
|
lets just say you are both wrong, one watt of pv will produce one watt in full sunlight, in my part of Wisconsin we average 4 sun hours per day, allowing 1 watt of pv to produce 4 watt hours on average per day, yesterday was cloudy so we didn't get alot of power from the sun but today was clear and bright so our 1.5kw of pv has put out 7.7kwh of power today and still counting.