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I don't think anyone here moralises Aircon. It's something that's most used during periods of sun so it's really mostly powered by renewables. During the times of high ac usage there's always an energy surplus from all the solar panels around these days and the electricity distribution has trouble dealing with it all.

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Your comment makes me think you don't live in a warm country.

Where I am from it is currently 24-25C at 3am. It will likely go up to 27C in August. We keep our AC on overnight in some evenings.

I do. The night temperatures are similar here. Days a lot hotter of course.

But most people I know run it mainly during the day, as it's cheaper on a dynamic contract (and basically free if you have solar panels). The heating during the night isn't high.

And we don't keep it at 18C or course, otherwise you get this slap in the face every time you leave the house.

I don't have AC (rental flat) and 25C is fine for the night. The problem is now when it's 31 in the house. I don't leave the windows open at night due to the cockroaches.

I don't see anyone moralising it anyway. On the contrary.

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