Despite the cycle losses, this seems like a good idea for easy to maintain storage. And they plan to use the heat as well, so that will step up efficiency. Wil

Despite the cycle losses, this seems like a good idea for easy to maintain storage. And they plan to use the heat as well, so that will step up efficiency. Will be interesting to see how their campus power project works out in the next years. Also, innovative “sausage safety test” for the Fe powder reacting with air (figure 6: https://doi.org/10.1039/D3SE01228J https://doi.org/10.1039/D3SE01228J ).