this post was submitted on 11 Feb 2025
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372
‘If 1.5m Germans have them there must be something in it’: how balcony solar is taking off (www.theguardian.com)
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[–] Valmond@lemmy.world 18 points 7 hours ago (1 children)

This is really nice! This is the future!

I'd love to know how much they produce, especially during the winter/monthly.

[–] Atelopus-zeteki@fedia.io 7 points 5 hours ago (2 children)

In the Northern hemisphere, in Winter the Sun is at a low angle, so vertically oriented panels might produce more. As an example, I have a sunroom and at Winter's Solstice the sunlight reaches about 3-4 meters into the room. At Summer's Solstice there is no direct sunlight in the room, as the Sun is overhead.

[–] Cataphract@lemmy.ml 3 points 2 hours ago

couple of things to note:

  1. Not every balcony is southern facing
  2. Most older European homes don't have A/C yet, so electrical costs are more during the winter months (that trend will change though I imagine)
  3. I think the numbers @Valmond@lemmy.world was asking about involved power output, that of course depends on the size of your array, daily/monthly/yearly differences in weather, and all sorts of little nuances that's hard to say without averaging out years worth of data.
[–] Valmond@lemmy.world 2 points 4 hours ago (1 children)

Do you have any numbers :-) ?

[–] Atelopus-zeteki@fedia.io 4 points 3 hours ago (1 children)

I have a sunroom, what sort of numbers are you asking for? It's a partly cloudy day, about 22C in the room, without heat. And about 7C outside.

[–] dufkm@lemmy.world 3 points 2 hours ago

Nice numbers <3