this post was submitted on 09 Jul 2024
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Hello fellow countryman!
I think you grossly overestimate the power consumption of a heat pump (a split heat pump that is). On the hottest period of the year so far, ours used about 1,75kWh for a 40m² space.
One or 2 balcony mounted panels (given the right orientation, even with a suboptimal inclination) will easily deliver that much.
You are however right that most apartments can't profit much from solar power... The dynamic pricing however can make the cooling really cheap in the summer months. Just switch to non-dynamic pricing before the winter months to get the best year round price.
Two panels on the balcony of a 40m² studio? The 2x1m 400+ W ones? I did not even have a balcony when I lived in a studio lol. Anyways if you only require 1.75 kWh that's less than a euro of electricity even on fixed pricing. I think the real lesson here is that we haven't had summer yet this year so the AC barely turned on at all.
I just checked on Hubo, their cheapest portable A/C is 7000 BTU, i.e. 2 kW. That means if you had to use it at full tilt for an hour (not exactly an outlandish scenario in the previous years' summers), you'd use more electricity in that hour than you've had all year this year.