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Tile roof will make it more expensive for the installation, but not by a lot.
The issue isn't "How much do you pay per month?", it is "How much do you pay per kWh?"
Also, does your local power company do some sort of net-metering.
The normal cost for install around here is $15K for 5kW for a Grid Tied System. Our 10kW system with batteries and a whole house generator is around $45K installed. In either case, there is a 26% Tax Credit.
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James
The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994)
Red-beard for President, 2020
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