Molten salt and human sweat: the weird batteries that could store renewable energy

From Nevada to Manchester, developers are trialling innovative solutions to clean energy’s biggest challenge In the deserts of the United Arab Emirates a sprawling clean energy project, stretching across an area roughly the size of 12,600 football fields, will play host to a breakthrough allowing solar energy to power the equivalent of half a million homes through the night. The Gulf state has been steadily combining 5.2GW of solar power capacity with 19GWh of battery storage to create the…