Vad händer
Kontext
Green Gravity from Australia turned to abandoned mines instead. The firm counts on millions of existing vertical shafts that can accommodate weights, which is much cheaper, takes up very little space on the surface and doesn’t require water and chemicals.
Balkan Green Energy News: Romania to turn 17 coal mines into gravity energy storage systems
Företagets lösning går ut på att lyfta och sänka tunga vikter i gruvschakt för att driva turbiner som genererar elektricitet.
Vad har det för betydelse
“Our technology offers a unique solution to store excess renewable energy using gravity, which can help balance the power grid and support the EU’s climate goals,” he said.
“By re-using mining assets, costs can be kept low,” he said. “By using gravity as the fuel, we dispense with consuming the critical water, land, and chemicals which other storage technologies rely on.”
PV Magazine: Green Gravity signs deal to roll out energy storage tech in Romania
Det här är en del av Rumäniens mål att bygga 30,5 procent fri energi till 2030 och att kol fasas ut till 2032.
