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having trouble figuring cost of kwh for a solar panel setup

having trouble figuring cost of kwh for a solar panel setup

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  #1  
Old 10-16-14, 03:12 PM
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having trouble figuring cost of kwh for a solar panel setup

In Seattle, we pay about 10 cents per kwh. I pay about $100 a month for electricity, which gives me 1000 kwh a month used, right? Then these solar panel deals, they all start at around 10-12 panels, giving around at least a total of 300 kwh a day, which would give me 9000 kwh a month, which seems way too much. But I think my bill is average for Seattle. So why do these solar arrays all seem to generate so much more power than I need? I am confused!
 
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Old 10-16-14, 03:21 PM
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giving around at least a total of 300 kwh a day, which would give me 9000 kwh a month, which seems way too much.
I assume thats based on 24 hours of sun? Account for how many hours of sun a day. The panels only make peak power at certain times of day. Account for cloudy days. so many hours of sun..etc.

You have to do the math.

IMO you will pay the lease on those, and your electric bill, then your be paying more then $100 a month..
 
  #3  
Old 10-16-14, 04:08 PM
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Actually the 300 kwh output is based on 5 hours of sun a day.
 
  #4  
Old 10-16-14, 04:14 PM
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whats the rental cost?

You dont get c recs(sp) right?

Do you get credits back end of yr from electric company?

Or do you just get off your bill monthy?

Do you think you will have a 0 electric bill?

Look on your bill it will tell you avg killowatts used in a month or what you used that month...
 
  #5  
Old 10-16-14, 04:25 PM
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12 panels at 250 watts average per panel is 3Kw per hour or 3KWH.
If you have 10 GOOD sunny hours per day then that's 30KWH for the day. Not sure where the 300 came from.

The 3Kw installation would be a fairly common size for an average home.
The 300KWH figure would be a more monthly estimate.

You can use the following link for figuring your return....
Solar Calculator | Weather Underground
 
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