As Californians grapple with the increasing impacts of climate change, few things have come to be dreaded more than summer heat waves.
This year, the scorching temperatures arrived early, prompting the first power conservation advisory of the summer on June 17 and setting off speculation on social media about how the heat could impact electric car owners.
鈥淐alifornia literally just told everyone to not charge their electric cars due to power shortage,鈥� read a on Facebook, which was shared more than 46,000 times.
鈥淪o California just asked everyone to stop charging electric cars due to power outages 鈥� can鈥檛 make this crap up,鈥� read , posted on June 21.
There鈥檚 good news for electric car owners 鈥� the rumors are missing a lot of context and aren鈥檛 entirely true.
But the posts spread quickly online and migrated from Facebook to other platforms, including .
They also sparked discussion about whether California has the resources to continue to move toward electric vehicles in pursuit of a greener future.
鈥淐alifornia can't provide enough electricity for the homes and businesses they have yet they're mandating everyone drive more electric cars,鈥� read one on Facebook. 鈥淚'm continually amazed at how stupid leftists can be.鈥�
Facebook flagged the posts as part of its efforts to combat false news and misinformation on its News Feed, so we decided to investigate. ( about PolitiFact California鈥檚 with Facebook.)
The Alert
The California Independent System Operator, or CAISO, is the nonprofit tasked with operating and managing most of California鈥檚 power grid. It regularly issues power conservation advisories when the grid is facing challenging conditions, such as intense heat or wildfires.
The advisories, known as Flex Alerts, encourage Californians to shift their energy usage to certain times of the day when the power grid is less stressed.
鈥淎 flex alert is not a power outage,鈥� said Gil Tal, director of the Plug-in Hybrid & Electric Vehicle Research Center of the Institute of Transportation Studies at UC Davis. 鈥淚t's a way to prevent outages. We don't like that we are being told not to use electricity, but it's a much better situation than sitting in the dark if the grid is collapsing.鈥�
Usually, the alerts ask that residents conserve power during evening hours, when people are still awake and using electricity but some energy sources, such as solar power, are not available.
鈥淥n a good day, solar in California can make up half of the generation,鈥� said Severin Borenstein, a professor of business administration and public policy at UC Berkeley and the director of the Energy Institute at the university鈥檚 Haas School of Business. 鈥淎nd so when we start to lose it, we need to have other things. One of the problems that comes up on super hot days when the demand is very high is we may not have enough of the other resources to keep the balance in the system.鈥�
In announcing the June 17 Flex Alert, CAISO encouraged people to voluntarily cut back their power usage from 5 p.m. to 10 p.m. The announcement included tips on how Californians could conserve energy and advised residents to complete tasks involving high amounts of energy, such as using large appliances and charging electric vehicles, before the alert to 鈥渂e as comfortable as possible鈥� during the evening hours.
The advisory never explicitly told Californians to not charge electric vehicles 鈥� just to shift their charging schedules, if possible, to accommodate limited resources in the evening.
鈥淭his is completely voluntary,鈥� Borenstein said. 鈥淭here typically aren't even financial incentives. It's just a plea and that applies to electric vehicles as well.鈥�
How Electric Cars Get Charged
Today, there are just under 630,000 electric cars on the road in the Golden State, according to the . Although they come in many shapes, sizes and models, all of them work similarly 鈥� drive, park and plug in as needed.
How long and how often electric cars need to charge depends on a variety of factors, including how far the car has traveled, what the car鈥檚 top range is and what type of outlet it is hooked up to.
Borenstein said charging a vehicle fully can take hours.
鈥淚f you're plugging into a regular old household 110-[volt] outlet, it can take all night just to replenish a battery that's been driven 100 miles during the day,鈥� he said. 鈥淢ost houses that have charging have at least a 220-[volt] outlet and charge about twice as fast.鈥�
But most daily commutes won鈥檛 completely drain an electric car鈥檚 battery. from the U.S. Department of Transportation鈥檚 Federal Highway Administration shows that residents of the San Francisco Bay Area traveled an average of about 20.7 miles per day in 2019. In Los Angeles, that number was 22.5 miles each day and in Sacramento, it was 22.3 miles.
So most modern electric cars don鈥檛 need to be charged on a daily basis, Tal said.
Many get plugged in every couple of days and are equipped with timers so that owners can schedule their charges. While electric car drivers might initially balk at power outages and conservation advisories, Tal said these events usually pose 鈥渘o problem.鈥�
鈥淎 Flex Alert is a couple of hours and there are very, very few electric car drivers that have to charge their cars in these specific few hours,鈥� Tal said. 鈥淢ost of the drivers today and in the future will be able to delay it by a couple of hours or a couple of days if needed.鈥�
Does California Have The Power To Go Green?
As of 2019, renewable sources produced just over 30% of California鈥檚 power. In 2015, the state to 50% by 2030 and Gov. Gavin Newsom last year that requires all new cars sold in California to be zero-emission vehicles by 2035.
鈥淐alifornia is really on the cutting edge of integrating wind and solar into generation,鈥� Borenstein said. 鈥淐alifornia also has much larger penetration of electric vehicles than any other state, and so we are on the cutting edge there, too. That gives us the opportunity to be a leader in coordinating the electric vehicles with the intermittent renewables.鈥�
If everyone drove an electric vehicle, Tal said Californians would 鈥渄ouble鈥� their electric use in their homes. But change is unlikely to come quickly, and the current grid is able to support short-term increases in electric cars.
鈥淲e can have millions of electric cars on today's grid with no problem,鈥� Tal said. 鈥淲e have less than a million today and we can go to three, four, five million without doing any serious upgrades.鈥�
In the long run, California鈥檚 power grid will need to produce and store more electricity to reliably make the shift to an entirely electrified fleet. But Tal said the process should be smooth if the changes happen 鈥渢ogether.鈥�
Borenstein said it鈥檚 not the first time the power grid has needed to adjust to emerging technology, comparing the shift toward electric cars to when air conditioning became popular in the 1950s. Over the years, the grid successfully scaled up capacity to accommodate energy demands.
Air conditioning units tend to kick in at roughly the same times because outside temperatures increase during the day and decrease overnight, which posed an additional challenge for the electric grid of the 1950s. Borenstein said electric cars will likely have an easier adjustment.
鈥淲e are going to have to build up capacity here as well,鈥� Borenstein said. 鈥淏ut we probably aren't going to have to build up capacity nearly as much because everybody doesn't have to charge at the same time.鈥�
As California transitions to electric vehicles and renewable power sources, Borenstein said market forces will likely promote charging during times when energy is more plentiful.
鈥淚 think that's where we're going,鈥� he said. 鈥淲e're not going to make it illegal to charge your car at any particular time, but it's going to be cheaper to charge it when the grid actually is more plentiful with electricity and more expensive when the grid is tight.鈥�
Our Ruling
Posts on social media claimed that California told electric car owners to 鈥渘ot charge鈥� their vehicles because of a power shortage.
The posts appear to refer to a Flex Alert that was issued by the California Independent System Operator on June 17. The alert encouraged Californians to voluntarily conserve energy and charge their electric vehicles before 5 p.m. to minimize possible stress on the power grid during the first major heat wave of the summer.
CAISO officials never said people could not charge their vehicles. Rather, they asked that electric vehicle owners shift their charging schedule to accommodate limited energy sources in the evening.
Furthermore, experts say that most electric vehicles only need a few hours of charging each night and are equipped with timers so that owners can schedule charging periods, making it simple for Californians to voluntarily comply with the Flex Alert.
The posts also kicked off debate about whether California鈥檚 grid will be able to accommodate efforts to move toward electric vehicles in the coming years. But experts said the transition should be smooth as long as the shift to electric cars is coordinated with efforts to push for renewable energy sources and improve grid capacity.
The posts entirely misinterpreted the Flex Alert and stoked largely unfounded fears about California鈥檚 move toward green energy. Therefore, we rate these claims False.
FALSE 鈥� The statement is not accurate.
Sources:
Facebook , June 18, 2021
Facebook , June 21, 2021
Facebook , June 28, 2021
Twitter , June 21, 2021
Interview with Gil Tal, director of the Plug-in Hybrid & Electric Vehicle Research Center of the Institute of Transportation Studies at UC Davis, June 25, 2021
Interview with Severin Borenstein, a professor of business administration and public policy at UC Berkeley and the director of the Energy Institute at Haas, June 29, 2021
California Independent System Operator Corporation, , June 17, 2021
California Energy Commission, , April 20, 2021
Federal Highway Administration, , Sept. 30, 2020
California Energy Commission,
Los Angeles Times, , Oct. 7, 2015Los Angeles Times, , Sept. 23, 2020
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