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by moffkalast
720 days ago
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It depends on how many cloudy/winter days you want to be proof for right? There needs to be some backup capacity for when you won't be able to fully recharge for weeks on end. Although I suppose it is cheaper to oversize solar and not the battery, but that's usually already maxed out and limited by roof space. Maybe a small wind turbine to compensate for stormy days... |
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I think they're talking about the situation where you're still connected to the grid, in which case you don't need to handle the backup capacity.