Re: 2.

Date: 2026-05-20 02:20 pm (UTC)
bens_dad: (Default)
From: [personal profile] bens_dad
If 10% covers your non-heating needs in January (and you don't have air-con) you might have 900% over-production in summer. I think that might be enough to heat your house all winter.

Over the year solar needs to generate as much energy as is currently used for heating.
Adjust for inefficiencies, electrical use, and any heat put in when a ground-source heat pump is used (in reverse) as air-con.

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