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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: 0.204s | 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. lysace ◴[03 Sep 25 08:59 UTC] No.45113639[source]▶
16 MWh of electricity/year isn’t really an outlier for an electrically heated (via efficient heat pumps) house in Sweden either.

Your number above probably includes apartments and houses heated using district heating, e.g. from incinerating forest industry waste products.