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Old 12-12-2018, 04:10 PM   #4065 (permalink)
aerohead
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solar

Quote:
Originally Posted by Xist View Post
https://www.energysage.com/solar/sol...-solar-panels/

I have provided sources showing that the average solar installation in the Phoenix area would cost $15,000 and have an ROI of eight years.

Enough batteries to run the air conditioning for three hours would also cost $15,000, making the ROI sixteen years--longer than the expected life of the batteries.

So, before you pay them off, you already replace them. If you replace them then the ROI is now twenty-four years, but that is probably longer than the batteries will last, and is approaching the anticipated life expectancy of the solar panels.

If installing batteries becomes 10% cheaper and they last 10% longer you should break even on them.
We're getting a little bit of utility-scale solar farms around here now.
Rather than deal with a home system,some are opting for the solar plan,and pay a modest premium to compensate the COOP for the land,hardware,install,maintenance,replacements,etc .,into the future.
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