Energy & Green Tech

Californians told not to charge EVs as grid struggles in heat wave

Californians were told Wednesday not to charge their electric vehicles during peak hours, just days after the state said it would stop selling gas-powered cars, as the aging electricity grid struggles with a fearsome heatwave.

Engineering

Japan upgrades downpour forecasts before Tokyo 2020

With an eye on the Tokyo 2020 Olympics, Japanese researchers are developing a new system to accurately forecast torrential downpours—known in Japan as 'guerilla rainstorms'—30 minutes before they strike.