Electricity

Expert Voices

The challenges ahead for wireless charging for electric AVs

Animated GIF of electric car as a lightening bolt
Illustration: Sarah Grillo/Axios

Newly introduced electric vehicles are capable of charging wirelessly rather than tethered to a power cable, a technology that could one day help autonomous EVs stay running around the clock.

Why it matters: The ability to charge whenever they have a chance — through wireless charging source pads embedded in roadways and parking spots — would make AVs more efficient because they would never have to be taken out of operation for refueling.

Expert Voices

Solar storage technology is having its time in the sun

The new mass battery storage for electricity from a solar field is located in a former airplane hangar at the airfield in Neuhardenberg, Germany, 05 July 2016.
A battery storage facility for electricity generated from a solar field in Neuhardenberg, Germany. Photo: Patrick Pleul/picture alliance via Getty Images

Hawaiian Electric Company just submitted to state regulators seven massive new solar-plus-storage contracts. If built, these would add more than 260 megawatts of solar and, more significantly, over 1,000 megawatt-hours of storage to the Hawaiian grid — more than the total cumulative amount of energy storage deployed across the U.S. between 2013 and 2017.

Why it matters: Solar plus storage is having a breakout moment. The technology allows the power generated by intermittent renewables to be better matched to times when the grid needs it most, which is critical for clean energy growth to continue. It also means that renewables may come to compete more directly with natural gas in some markets, rather than requiring more gas to balance their intermittency, as has been the case so far.

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