Cost factors that continue to deter new investment in PSH include large capital costs -- as much as $5,000 per kW installed capacity -- and the lack of clear energy storage pricing signals.

In the provincial capital of Guangzhou, the power load climbed to 21 million kW on May 30, up by more than 20% from a year earlier.

That total includes at least 3,500 new and existing 250 kW Superchargers along highway corridors and at hotels and restaurants.

The charging points will be accessible to drivers of cars by all manufacturers at 500 locations by the end of 2023, and will have a capacity of up to 350 kW.

The group directed a beam of calcium-48 — a calcium nucleus with 48 neutrons instead of the usual 20 — into a beryllium target at 1 kW of power.