@onedawnconstant I just re-posted a few pieces about #SandBattery technology. I think they have found ways to prevent that from happening.
250MWh 'Sand Battery' to start construction in Finland, for both heating and ancillary services

Polar Night Energy and Lahti Energia have partnered for a project using 'Sand Battery' technology for a district heating network in Finland.

Energy-Storage.News
When wind power is abundant and spot prices are negative (which occurs in Finland about 700 hours per year, including winter) this #sandBattery takes excess electricity off the grid, stores 250 megawatt-hours (MWh) heat in hot sand, and afterwards feed 2 megawatts (MW) into the #districtHeating grid

RE: https://bsky.app/profile/did:plc:qajqkjx77ru3x2ciqjidd25y/post/3m6lsmtzgz22s

Anyone have an electric burner element? I'm ready to start experimenting with a #SandBattery to store excess solar as heat to radiate into my space at night.

I have a water heater element, but I understand those can burn out easily because they're intended to be submerged in water all the time.

#OffGridSolar #DIY

Finland has launched the world’s largest sand battery, a groundbreaking energy storage system that can store heat for months and power an entire town for a week. Finland’s sand battery helps stabilize the energy grid, ensuring renewable sources like wind and solar can still provide power during periods of low generation.
Sand batteries could become a key player in solving the renewable energy storage crisis.
#EnergyInnovation #SandBattery #FinlandTech #RenewableSolutions #CleanPower

World's first '#SandBattery' can store heat at 500C for months at a time. Could it work in Australia?

By technology reporter James Purtill
Mon 18 Jul 2022

Excerpt: "Polar Night Energy's chief executive officer Markku Ylönen said the entire battery could be built in "any steel workshop".

" 'It's really a typical #silo with nothing that special,' he said.

"To discharge the stored #ThermalEnergy, air is circulated through pipes in the sand where it's heated, then directed, to wherever it's needed.

"Right now, that's mostly heating homes, but it could also be used for high-temperature industrial processes, Mr Ylönen said."

Read more:
https://www.abc.net.au/news/science/2022-07-19/sand-battery-debuts-in-finland-world-first-heat-thermal-storage/101235514

#SolarPunkSunday #RenewablesNow #RenewableEnergy

World's first 'sand battery' can store heat at 500C for months at a time. Could it work in Australia?

The world's first commercial "sand battery" stores heat at 500C for months at a time. So how does it work, and should we build them in Australia?

ABC News

Very cool, @BobLefridge ! Tagging for #SolarPunkSunday !

#SandBattery

😂 Oh, the groundbreaking innovation of a sand battery that we can't read about because... nginx said 'No Entry!' 🚫 It's like getting invited to a party only to find the door locked and everyone inside having a ball without you! 🏖️🔋
https://cleantechnica.com/2025/08/30/finnish-city-inaugurates-1-mw-100-mwh-sand-battery/ #sandbattery #nginxinnovation #techhumor #accessdenied #partyfomo #HackerNews #ngated
Finnish City Inaugurates 1 MW/100 MWh Sand Battery - CleanTechnica

A 1 MW/100 MWh sand battery in now in operation in southern Finland where it is supporting the local district heating system.

CleanTechnica
Finnish City Inaugurates 1 MW/100 MWh Sand Battery - CleanTechnica

A 1 MW/100 MWh sand battery in now in operation in southern Finland where it is supporting the local district heating system.

CleanTechnica