my twitter feed is just wholesome interaction between first European world cup tourist interacting with american food/ stuff we do and OH MY GOD IT'S SO GOOD
The world’s largest sand battery got through Finland’s harshest winter in years. 2,000 tonnes of sand, heated to 500-600°C by cheap power, feeding district heating in Pornainen.
And it worked.
Result from one install: oil down 100%, emissions down 70%.
Industrial process heat is the real prize.