A Finnish town has replaced oil with a sand battery that stores heat, cutting emissions by 70%. Is this low-cost, low-tech ...

Welcome back to Week in Review! Lots in store for you today, including Wix's latest acquisition, Meta's new smart glasses, a ...

The Estlink 2 electricity cable between Finland and Estonia has resumed operations after a six-month outage caused by ...

Finland has activated the world's largest sand battery in Pornainen, storing excess renewable energy as heat to power an ...

The world’s largest sand battery is online and ready to make the most of Finland's renewable energy. Once fully operational, ...

Finland has started up the world’s largest sand battery in Pornainen. This new system stores renewable energy as heat in ...

The world’s largest sand battery has just been turned on. The battery, which is simple in design, can store heat during ...

The economics are compelling, and it’s hard to get any cheaper than the crushed soapstone now housed inside an insulated silo ...

Ah, the ever-enthralling world of tech—a place where relationships are as volatile as a middle school dance and innovations ...

Welcome to the latest episode of the tech soap opera, where we dive into the juicy drama of the tech world. Today, we’ll ...

Sand batteries are getting bigger in Finland. The new 1 MW sand battery has a precursor. In May 2022, Polar Night Energy rigged a smaller design to a power station in Kankaanpää town.