After watching my power bill here is what I have noticed. You will always receive a BILL for the connection to the power company Service. Mine is $13.64 (Including taxes and fees)
Solar Turn on was November 18th 2020
- November - December BILL = $78 (used 484KWH)
- December - January BILL = $68 (used 415KWH)
- January - February BILL = $13.64 (CREDIT 48KWH)
- February - March BILL = $13.64 (CREDIT 488KWH)
So as you can see when we first had it installed we had SHORTER days and it was over the winter so we had to use Power company power. But starting January, we were generating a LOT of power and finally got a CREDIT on our bill. Here is how it is shown on the bill.
So if I make an Assumption with this little of data, then this is what I can say.
November - December power looked like this Produced 362.1KWH (I did not have Consumption transformers installed until Mid March) So this does not show my House Consumption.
December - January
January - February
February - March
March
SO based on these numbers you can see my First FULL Month of December Power Generation During the shortest days of the year was around 844Kwh. The Full Month of March, at the start of Spring and the time change and longer days is now at 1.4Mwh so almost DOUBLE the power generation.
Normal Sunny days are showing Power Generation around 61+ Kwh As you can see when generating a lot of power the house is Generating MORE that used and then allows a CREDIT to go back to the power company.
Also above you can see my consumption transformers have been installed and it shows my Power Useage. I believe that the small spikes you see during the night are when the Air Conditioner turns on.
Over all during the start of Spring. I am generating about 61+Kwh on Sunny days. This in turn is giving me a power surplus right now of about 440Kwh, this means that during my short days when I am using MORE power from the Grid and not generating enough that this credit will cover me. If I do a quick assumption that I will have 4 months of LOWER power solar generation so 4 months of using average of 450Kwh from the Grid I need 4 months of 450Kwh to cover my bills for those short months.
The Data however above supports Oct-Jan short months and Feb-Sept being overage months. 4*450=1800Kwh shortage, Feb-Sept 8*440=3520Kwh. Which should give me a Year End Overage of 1720kwh.
This means that our house is generating MORE power than is needed.
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