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points by sagarm 3 days ago | 0 comments

Rooftop solar costs 3x more per watt than utility scale. The only reason it would pay off is that you're able to avoid grid maintenance costs built into per-kwh pricing.

[–] KerrAvon 3 days ago

Rooftop solar (ideally with battery backup) allows you to be independent of the grid (yes, even if you're interconnected, if you do it properly), which means PG&E's garbage infrastructure can largely become irrelevant if your system is properly sized.

[–] pfdietz 3 days ago

Which is gaming a particular kind of rate structure. They would not do nearly as well if grid maintenance charges were decoupled from consumption.

[–] blitzar 3 days ago

Residential electricity pricing is 3x-4x wholesale pricing.