I used 10 000 watts a day. I want to buy a 480 watt system. how many batteries do I need to store the watts that I need. or do I need a bigger watt system?
2007-01-28 08:49:51 · 4 answers · asked by Rafael M 2 in Science & Mathematics ➔ Engineering
You really need your measurements in Watt/Hours. The wattage tells you the rate of energy usage, not the actual energy used.
Lets estimate. A 480 Watt system in good sunlight might get 8 hours. That is 3.8kWh. The average house in the USA uses 9kWh a day.
Suppose you used 40AH 12V car batteries. Each battery could store one hour of the output of your solar cell. Multiply by the number of hours that you need to store.
You are far short of being able to run your house on solar all the time, not counting for cloudy days and winter. Don't disconnect from the grid just yet.
2007-01-28 09:07:23 · answer #1 · answered by Anonymous · 0⤊ 0⤋
You need a bigger watt system to make a noticable difference. You don't have to have batteries either unless you want off the grid completely. Just hook it up to your existing power and when the solar power is working more than you use, your meter will go backwards and that may be your best bet
2007-01-28 08:55:00 · answer #2 · answered by fade_this_rally 7 · 0⤊ 0⤋
Need a big watt system
2007-01-28 08:57:14 · answer #3 · answered by gtownprincess155 2 · 0⤊ 0⤋
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2017-03-16 00:45:10 · answer #4 · answered by Estelle 3 · 0⤊ 0⤋