Bateria cu nisip stochează energie regenerabilă, economia pompelor de căldură casnice și a panourilor solare

În acest episod din Physical World Weekly podcast, we meet Markku Ylönen, who is co-founder and chief technology officer of the Finnish company Energia de noapte polară. The firm has created a “sand battery” that stores excess renewable energy as heat, and can be used to smooth out variations in supply that occur when the Sun isn’t shining and the wind isn’t blowing.

Ylönen is in conversation with Lumea fizicii’s Margaret Harris, who has also written a articol facilitate about how installing a heat pump and solar panels can reduce domestic energy consumption from mains sources. In this podcast she talks about the economics of these technologies and what governments can do to encourage their uptake.