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The inverter keeps a log of electricity generated, used, battery used, imported and so on. I put that in a spreadsheet which calculates money saved. (Which is
by bruce511 5mo ago
The inverter keeps a log of electricity generated, used, battery used, imported and so on.
I put that in a spreadsheet which calculates money saved. (Which is reasonably complex because of pricing tiers although fortunately I don't have to deal with daily pricing changes.)
Then some math returns the return on investment per month and per year.
- throwaway2037 5mo agoDo you also subject the cost of upfront capital? Example: Imagine that you didn't have the upfront captial, and you needed to borrow it "from a bank" at X% for Y months.