Comment by xnx
3 days ago
This is very cool. I'm guessing you must live somewhere with mild winters. Insulation can do wonders, but it can be overcast for weeks in the north.
3 days ago
This is very cool. I'm guessing you must live somewhere with mild winters. Insulation can do wonders, but it can be overcast for weeks in the north.
Solar panels are so cheap that it makes sense to overbuild, such that even an overcast winter day meets your electricity needs.
I think that depends on where you are. I've heard of 20kW installations producing 500W in December.
Granted 500W isn't nothing, but what if it's snows?
That is about the numbers that we get in Sweden. Those months were solar production is lowest is also the months that consumption is highest for the average household, around 400% compared to the warmest summer months. As a result, energy prices are also significant higher during winter compared to summer.
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In my experience this requires overbuilding by a factor of 10. That's not a good allocation of money.