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2019-03-11 01:01
in Solar
Well, it's been our 10 year anniversary for our solar panels. Time to add up the numbers. Again, due to our new electricity company that does not send true statements anymore, I don't have good numbers on how much we're paying, but it's pretty close to $0.
In 10 years:
we took 13,323 Kwh from the grid, which is pretty much what we use in a year
Our PV system generated 84,607 Kwh
Given that our panels made 84 Mwh, which at an average of 25c/Kwh would have cost $21,000, likely more due to time of use pricing and at this point, it seems pretty clear that we've more or less repaid the price of the panels while not adding CO2 to the world.
Year # PV Kwh PG&E Kwh Used House Kwh Used Yearly Bill EV (car)
2010 - #1 8503 1602 10105 -$39.87
2011 - #2 8813 1209 10022 -$38.80
2012 - #3 8402 674 9076 -$110.43
2013 - #4 8366 486 8852 -$134.06
2014 - #5 8840 -30 8810 -$210.74
2015 - #6 8665 1027 9692 -$41.38
2016 - #7 8437 1386 9823 ?
2017 - #8 8335 1910 10245 $26.21 613Kwh
2018 - #9 8665 1922 10250 ? 209Kwh
2019 - #10 7918 3038 10956 ? 865Kwh
Total 84607 13323 97831 N/A 1687Kwh |