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> In general, you'd need land for solar panels equivalent to your entire neighborhood to merely duplicate and provide your current energy use just from your own
by danans 5y ago
> In general, you'd need land for solar panels equivalent to your entire neighborhood to merely duplicate and provide your current energy use just from your own home.
That's false because it is based on the assumption that you should convert the input BTUs of your natural gas heater directly to hypothetical kWH consumed if substituted with electricity, which is silly because if you are trying to generate 100% of your energy consumption locally (a goal of questionable value itself), you would change your mechanical systems to electrical ones that are 3-5x more efficient at delivering space heating than natural gas furnaces.
The most efficient nat gas furnaces are 96% efficient, but heat pumps routinely achieve 300-400% efficiency. That works out to far lower energy input for space heating.
A far more sensible approach to local electricity generation is to move to more efficient building and mechanical systems and only generate enough electricity via solar+storage to power critical loads during a grid outage.
> And that doesn't even cover EVs being charged!
Given, the average American commute distance, EVs will always be a grid coupled technology due to their huge energy requirements. This is a good thing because they will needed to provide buffers for grid and home resiliency to less predictable power supply and demand patterns.