September 10

Energy Vault’s gravity-based storage facility in Rudong, China, has failed to match the economics of lithium-ion batteries even under near-ideal conditions, according to an assessment by TFIE Strategy Briefing and CleanTechnica analysts. The tower stands roughly 148 metres tall and uses more than 12,000 mineral-composite blocks weighing 25 tonnes each, raised and lowered by 96 […]

Denmark’s wind farms briefly covered the country’s entire domestic electricity demand during the early hours of last Friday, with a 40 percent surplus channeled into interconnectors serving neighboring markets — a fleeting milestone that the Danish Energy Agency wants to make routine. The agency is drawing up plans for two offshore “energy islands,” one in […]