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> A better option would just be to put $1 billion into a company dedicated to catching up to China on mass-scale monocrystalline PV wafer production for durabl
by danans 5y ago
> A better option would just be to put $1 billion into a company dedicated to catching up to China on mass-scale monocrystalline PV wafer production for durable, high-efficiency PV panels for both rooftop solar and large-scale installations.
I'm with you on increasing domestic PV production at scale, but residential rooftop solar is not where you are going to get the most impact in terms of increased renewable generation. Residential rooftop LCOE is always 2-4x the cost of utility scale solar because of the sheer variety of roof types, more inverters per panel, and much higher per-watt soft costs (marketing, site analysis, permitting, etc).
Rooftop solar is good for reducing individual customer bills in many places though. In CA my PV array, which cost about $12k, reduces my annual electric bill by $1700/year, thanks to the rooftop solar-friendly net-metering system. If net metering incentives were reduced, the value proposition in pure $ would go down. These days, the main incentive to get solar PV in CA appears to be:
- Adding it to lower bills before net-metering is phased out (as has been proposed)
- Generating power for an EV
- Pairing with battery backup for power outage preparation