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Finnish City Inaugurates 1 MW/100 MWh Sand Battery

(cleantechnica.com)
190 points erwinmatijsen | 1 comments | 03 Sep 25 06:00 UTC | HN request time: 0.24s | source
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pintxo ◴[03 Sep 25 08:29 UTC] No.45113477[source]▶
Really like the idea, but my house alone has roughly 16 MWh/a heat consumption. Of which half gets consumed November through January.

So this system could supply 12 houses? Shows the importance of proper insulation, which is still on our todo list.

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diggan ◴[03 Sep 25 08:42 UTC] No.45113537[source]▶
Sweden seems to have some of the highest "Electricity consumption per dwelling" (https://www.odyssee-mure.eu/publications/efficiency-by-secto...) in Europe, and sits at 10 MWh, which makes sense, it's a very cold country but with very well isolated houses in general :)

It sounds to me like you're likely an outlier here, for curiosities sake, where do you live?

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1. pintxo ◴[03 Sep 25 10:01 UTC] No.45114001[source]▶
Germany, and these are numbers from our gas heater. But the house is almost 50 years old and not insulated to current standards (yet).

We got a heatpump this year, going to be interesting to see how this changes things.