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Thanks for the numbers! I had no idea taxes were such a large fraction elsewhere. Good to know/consider. I'm most familiar with California. (and actually can't give a % that is taxes offhand)

After the first year of having PV, I determined my own payoff time of about 5-7 years, so that was nice and self-justifying, and haven't dug deeper into details on that.

Congratulations for being the only person in the thread who did an ROI calculation.

Did you DIY your install?

Partly, I did the electrical work myself (dug a cable to the shed, added a breaker, etc). Asked the installer to put the panels on the roof and connect it to the existing line. The roof is low, so access was easy and they were done in a less than 2 hours, kept the cost low.

2800kWp => 2800Wp :)

Oops yes, that would otherwise make for very cheap solar.