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If you lack the critical reasoning ability to understand how that could be useful or to understand that adding a thing that's biased towards summer to a thing t
by Schroedingersat 4y ago
If you lack the critical reasoning ability to understand how that could be useful or to understand that adding a thing that's biased towards summer to a thing that's biased towards winter gives you energy all year around, then we shouldn't really be listening to your energy infrastructure advice.
https://polarnightenergy.fi/sand-battery https://polarnightenergy.fi/sand-battery
- Manuel_D 4y agoHow many gigawatts of sand storage have been provisioned (in terms of electricity output, not thermal output)? How many years of operational experience do we have? In fact I'm not aware of any project using thermal sand for electric storage, only for district heating. Finland uses about 87TWh electricity annually, working out to about 230 GWh daily. I'd be a lot more convinced of it's viability for seasonal storage if they're able to provision at least a day of storage. I don't doubt your critical reasoning ability, but I do doubt the wisdom of treating the challenge of provisioning and operating massive seasonal storage on the order of terawatts as a solved problem because of a few district heating projects.
- Schroedingersat 4y ago> How many years of operational experience do we have? Yes. Huge problem. Very nice and good faith objection to something that can be done incredibly simply with a few dollars per kWh. What if some hot water or sand leaks out and contaminates an entire country?