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World’s largest thermal energy storage to be built in Vantaa, Finland (www.vantaanenergia.fi)
submitted 7 months ago by 0x815@feddit.de to c/europe@feddit.de
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A seasonal thermal energy storage will be built in Vantaa, which is Finland’s fourth largest city neighboring the capital of Helsinki.

The total thermal capacity of the fully charged seasonal thermal energy storage is 90 gigawatt-hours. This capacity could heat a medium-sized Finnish city for as long as a year. Broken down into smaller energy units, this amount of energy is equivalent to, for example, 1.3 million electric car batteries.

The project cost is estimated to be around 200 million euros, and it has already been awarded a 19-million-euro investment grant from Finland’s Ministry of Economic Affairs and Employment. Construction of the storage facility’s entrance is expected to start in summer 2024. The seasonal thermal energy storage facility could be operational in 2028.

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[-] cosmicrookie@lemmy.world 6 points 7 months ago

Why can't we store energy generated by wind turbines this way?

I live in Denmark and we sell electricity to Germany but when it is windy, Germany asks Denmark to stop their energy production because prices are getting too low. They actually pay turbine owners money to not make electricity when its windy!

Why not simply convert the unsaleable e ectricity it to heat and store it to be spend when its needed as heat?

[-] antithetical@lemmy.deedium.nl 13 points 7 months ago

Because there is no "simply store" yet. Efficiently storing energy is not really solved. There are lots of snake-oil companies with braindead ideas (like lifting blocks of concrete to build a tower). But heating water and storing it like this seems like a feasible option. Very cool but expensive.. I do hope it works.

[-] Diplomjodler3@lemmy.world 4 points 7 months ago

They recently built a pilot plant that seems to go way beyond the prototype stage at 100 MWh. This technology obviously still has a long way to go to mainstream adoption, but just writing it off because it seems farfetched is pretty shortsighted.

[-] antithetical@lemmy.deedium.nl 2 points 7 months ago

Well, I'm still sceptic and the marketing driven website low in details doesn't really help. Most of these projects conveniently forget the whole supply chain for the needed resources. But if it works, then great! The more solutions we have the more chance we have as humanity to survive.

[-] Diplomjodler3@lemmy.world 2 points 7 months ago

Well, they're building the thing. Then they'll be running the thing for a while. Then we'll see if it really works technically and economically.

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this post was submitted on 18 Apr 2024
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