An over 90% efficient thermal storage technology from KTH gets further refinements Energy storage will become essential to fully replace fossil fuels for industrial heat and the electric grid. Batteries are a cost-effective solution when electricity is needed as an...
![Over 90% efficient energy storage improved by flowing heat round two pebble layers](https://www.solarpaces.org/wp-content/uploads/2024/03/KTH-storage-750x675.png)