Can California's Power Grid Handle a 15x Increase in Electric Cars?

California state officials 'claim that the 12.5 million electric vehicles expected on California's roads in 2035 will not strain the grid,' writes the nonpartisan and nonprofit news organization Cal Matters.

'But their confidence that the state can avoid brownouts relies on a best-case — some say unrealistic — scenario: massive and rapid construction of offshore wind and solar farms, and drivers charging their cars in off-peak hours....'

Powering the vehicles means the state must triple the amount of electricity produced and deploy new solar and wind energy at almost five times the pace of the past decade.... Adding even more pressure, the state's last nuclear power plant, Diablo Canyon, is slated to shut down in 2030.... To provide enough electricity, California must:
- Convince drivers to charge their cars during off-peak hours: With new discounted rates, utilities are urging residents to avoid charging their cars between 4 p.m. and 9 p.m. But many people don't have unrestricted access to chargers at their jobs or homes.

- Build solar and wind at an unprecedented pace: Shifting to all renewables requires at least 6 gigawatts of new resources a year for the next 25 years — a pace that's never been met before.

- Develop a giant new industry: State officials predict that offshore wind farms will provide enough power for about 1.5 million homes by 2030 and 25 million homes by 2045. But no such projects are in the works yet. Planning them, obtaining an array of permits and construction could take at least seven to eight years.

- Build 15 times more public chargers: About 1.2 million chargers will be needed for the 8 million electric cars expected in California by 2030. Currently, about 80,000 public chargers operate statewide, with another estimated 17,000 on the way, according to state data.

- Expand vehicle-to-grid technology: State officials hope electric cars will send energy back to the grid when electricity is in high demand, but the technology is new and has not been tested in electric cars.

Thanks to long-time Slashdot reader schwit1 for submitting the story.

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