Inspirational appetizers on unusual startups, emerging trends and bleeding-edge research

Granular savings

Sustainability

Warm walls help generate energy.

Now, the startup of a Finnish research team is using sand to store solar- and wind electricity.

The renewable energy powers a device that circulates hot air in a silo with some 100 tons of sand which heats up to 600-1000℃.

This way energy can be stored for months without using lithium and cater to locals in the cold Finnish winter. The heat provides for furnaces and hot water.

When deployed in the industrial sector, this reduces fossil fuel usage. The first low-emission storage device with 100 kW heating power is already in use.

This device can convert even higher temperatures into electricity, while these supercapacitors play a crucial role for solar power on cold days.

Share the inspiration

Previous article
Next article

More Chillipicks In This Category

Stay Connected

Get a head start with the weekly newsletter

Sign up for your weekly inspiration sent directly to your inbox each friday. Providing you with positive news on innovation. Get a fresh perspective, sparking ideas and preparing you for warm-hearted conversations.

Related Chillipicks