High temperature as a battery

This is an ingenious battery solution developed by an American company, Rondo Energy. A fundamentally ingenious solution that should be an inspiration. Can be easily scaled up.

This is a solution to handle excess electricity from solar cells and wind and then use it when needed. This means that you should not back down from solutions that include variable energy.

Just the thought that the solutions that exist today cannot be improved makes us lock ourselves in. Many people believe that there is no solution for solar and wind energy, making these energy solutions hopeless. Right-wing forces, not least in Sweden, would like to claim to give up. What we had during the 20th century was the pinnacle. We must dare to think that there are still ingenious solutions to be made that will allow us to cross seemingly impossible boundaries.

This is a solution that can be an inspiration for new solutions. This company Rondo Energy has the idea that it can go up to up GWh level. This company is successfully now involved mostly in southern countries, but not yet in the Nordic countries. Provides the opportunity for both industrial projects where high heat is required in itself, but can also be converted into steam to drive electricity generators. Takes care of electricity when there is too much, which is about to become a common big problem. With a lot of wind and solar energy that cannot be controlled in itself. This is the next step. Then the excess electricity is stored as heat at temperatures of 1000-1500°C. Special bricks are used to store heat in. Very well insulated, so that losses are small. 1% loss per day is calculated.

Today, everyone thinks of batteries when it comes to storing energy, but it is both very expensive and works best on an hourly scale. Batteries still often contain rare earth metals with questionable environmental properties. With sodium-ion batteries, this can change, but other solutions are needed. In this time scale, pumped hydropower is the closest thing that comes to mind. There is a scaled-up, but very expensive solution. Mainly in countries with large altitude variations.

Heating batteries are definitely an interesting solution. Leif Lindblom Fil. Kand, Sweden info@leiflindblom.se.