redditr/bayareaposthomeownerScore: 33
My solar system also doesn't cover my January usage, but that's because of economics - it'd need to be about 5x bigger to fully cover winter usage than to match year-round net consumption.
But the question at hand here isn't "Can individual homeowners be self-sufficient with rooftop solar?", it's "Can a microgrid of local Bay Area generation produce enough solar power to be regionally self-sufficient?" That's a *very* different question. *My* property definitely can't produce enough wintertime solar to power our needs, but in a microgrid, it's offset by all the south-facing properties on our hill, or public installations over the Bay, or office parking lots covered by solar panels.
So it goes with SF. The high-density multifamily areas of the city are offset by regions of the Bay Area that are almost empty, like Solano and Napa Counties. The computation above is based on measured total usage of the region - you just need an area roughly twice the size of SF. You can divide it between residential rooftops, covered parking lots, office buildings, installations over freeways, replacements for ranch land, hillside arrays, or even pylons on the Bay. But on a [Google Maps view of the Bay Area](https://www.google.com/maps/place/San+Francisco,+CA/@37.7341224,-122.9981965,251770m/data=!3m1!1e3!4m6!3m5!1s0x80859a6d00690021:0x4a501367f076adff!8m2!3d37.7749295!4d-122.4194155!16zL20vMGQ2bHA?entry=ttu), twice the size of San Francisco is a relatively small part of the total land area.
- Post Date
- 6/30/2024, 9:23:45 PM
- Scraped At
- 3/15/2026, 9:25:44 AM
- Locations
- Bay AreaNapaSan Francisco
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