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1. marksb+ll[view] [source] 2023-09-13 21:36:01
>>bookof+(OP)
So living on a narrowboat in the UK this is something I have experience with. We have a 335 W panel with an MPPT connected to a 200 Ah 12 V flooded lead acid battery. The battery in reality has a capacity of half that and in the 6 years of seasonality it has probably halved.

A few things :

* you don't need a fridge in winter so you can just turn it off. * charging battery banks / laptops in sunny periods results in the battery bank being useful in times when the weather isn't so kind. * no amount of solar is enough in the deep of winter. * any amount of solar is too much in the height of summer. * pubs are great for charging devices. * lead acid batteries last substantially longer if you only let them drop to half their true capacity and regularly charge them. Yes alternatives exist but there's something to be said for making what you have work for as long as possible.

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2. verisi+Co[view] [source] 2023-09-13 21:52:49
>>marksb+ll
> no amount of solar is enough in the deep of winter

> any amount of solar is too much in the height of summer

I totally agree. I can't understand how it why solar is promoted, when the winter is when you need more energy as you're in more, heating your house, etc. You can't store your summer's energy till the winter.

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3. stonog+Eq[view] [source] 2023-09-13 22:08:40
>>verisi+Co
"No amount is enough" might be true on a boat. I have a land-based deployment. In winter my 5 kWh array generates enough to heat my 2200-square-foot house, as long as I clear the snow. In summer it generates enough to air-condition. This is in addition to appliances, televisions, lights, etc. It's not like the sun turns off for six months.
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4. Turska+Ew[view] [source] 2023-09-13 22:53:16
>>stonog+Eq
Latitude matters so much for this, people love to make blanket statements forgetting that their situation doesn't apply universally.

People hardly realize (or straight up don't realize) that once you're in the tropics even the notions of summer and winter start to get fuzzy. Consider: if you're on the equator then you can go from "summer" to "winter" in only a few steps. Obviously, near the equator solar is a no brainer.

And of course the opposite is true, once you're inside the arctic circle solar is basically pointless because there literally is a period of no sun lasting anywhere from several days to several months. Of course not too many people live inside the arctic circle so it's not too much of an issue.

Even between these extremes though, the usability varies a lot.

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