Sand Energy Storage

Robin Low
2 min readDec 5, 2022

Finnish startup Polar Night Energy and local Finnish utility Vatajankoski have together built the world’s first commercial sand-based, high-temperature heat storage system that can be powered by solar and wind.

This is such a great idea as storing renewable energy is usually a challenge as batteries degrade over time and could cause more waste. Water does create challenges, and storing water using gradient usually requires…

Robin Low

Author, Traveler, Innovator. Focuses on Social Impact and Innovation.