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California’s power grid stood up to a recent heat wave but summer is far from over

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California’s power grid stood up to a recent heat wave but summer is far from over


A persistent heat wave that scorched most of California earlier this month essentially amounted to a real-time stress test that the state’s electric grid managed to withstand. But the head of the organization responsible for keeping the lights on says energy officials are still on alert as the summer wears on.

“We are generally well prepared” to avoid potential power outages, said Elliot Mainzer, president of the California Independent System Operator. “We’ve taken important steps to bring new clean energy and capacity onto the system, but we must stay diligent.”

As the Independence Day weekend approached, hot weather descended on the Golden State, with residents in Northern California suffering the brunt. Sacramento hit a high of 113 degrees on July 6, setting a city record for that date.

Though not as severe, parts of Southern California sweltered as well. In the deserts of San Diego County, temperatures hovered around 120 degrees in Borrego Springs and Ocotillo Wells on July 8.

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An air tanker drops retardant behind a home while battling the Toll Fire near Calistoga on July 2. An extended heat wave blanketed Northern California for 14 days. (AP Photo/Noah Berger) 

Heat waves strain the electric grid because homes and businesses crank up their air conditioners, putting pressure on system operators to meet the surge in demand.

To make matters worse, the hot weather lasted 14 days and bled into neighboring states.

On July 10, the Western Interconnection that helps coordinate electricity between 14 states in the West (including all of California) plus northern Baja California, British Columbia and Alberta hit an all-time record of 167,988 megawatts for peak load.

But the California Independent System Operator, known as the CAISO for short, did not resort to issuing any Flex Alerts — requests of customers across the state to voluntarily reduce their energy use.

On July 8, for example, CAISO operators had about 55,000 megawatts of supply on hand to meet an estimated demand of just over 43,000 megawatts — a fairly comfortable cushion of  around 12,000 megawatts.

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The elbow room was due in large part to capacity that’s been added to California’s grid in recent years.

The state has added nearly 11,600 megawatts of new grid resources since 2022. Of that amount, energy storage from batteries accounts for 5,800 megawatts.

Storage facilities take solar power generated during the day and discharge the electricity when California’s power system is under the most stress.

The batteries “did exactly what we expected them to do” during this month’s heat wave, Mainzer told the Union-Tribune. “They charged during the day when solar is abundant and put energy back onto the grid in the afternoon when solar production is rolling off the system … They were clearly a difference maker.”

It should be noted that the costs of building storage systems — and other grid enhancements — are passed on to utility customers in their monthly bills.

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During this month’s heat wave, multiple wildfires broke out in Northern California but they did not affect major power lines or distribution and transmission infrastructure that feed into the grid.

System operators were not so lucky three years ago.

The Bootleg Fire in Oregon in July 2021 tripped a major transmission line called the California-Oregon Intertie that carries imported electricity from the Pacific Northwest into California. The fire knocked about 3,500 megawatts off the system at the same time stifling weather blanketed the area.

“Every event and every set of facts is different,” Mainzer said.

The threat of statewide power outages has taken on a higher level of urgency in recent years.

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In August 2020, rotating outages in California occurred for the first time in 20 years after oppressive heat nearly overloaded the system for two straight days. The blackouts caused some areas to go without electricity for up to 2 1/2 hours.

The Golden State barely avoided a repeat the following summer. In September 2022, it nearly happened again when relentlessly high temperatures nearly buckled the grid. The CAISO issued a record 10 straight days of Flex Alerts and thanked utility customers afterward for helping save the day by cutting back on energy use from 4 p.m. to 9 p.m.

Those are critical hours for California’s power grid because solar production quickly disappears from the grid when the sun sets and system operators must seamlessly replace those megawatts of solar with other energy sources in real time to make sure the power system doesn’t collapse.

September can get tricky for the CAISO because the weather is still hot so customers keep running their air conditioners. But since autumn is approaching, the sun sets earlier in the day and that means there are fewer hours of solar generation the power system can draw on.

Other complicating factors?

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If wildfires break out, the smoke from the blazes can obscure the skies and that leads to a reduction in solar output.

And if a heat wave extends to neighboring states, that can lead to reductions of imports and exports in power trading markets. States under stress tend to hold onto the megawatts they already have so they can keep electricity flowing to their own utility customers and not export them elsewhere.

The system is interconnected and complicated but Mainzer is cautiously optimistic.

“The four-hour lithium-ion battery fleet that we’ve got in California is now the largest of anywhere in the world, outside of China,” he said.

Last year, the CAISO issued zero Flex Alerts. Can that be repeated this summer?

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“If we have another set of unprecedented circumstances that take the system to its absolute outer edge — both here in California and other parts of the West — then it’s possible to call Flex Alerts,” Mainzer said. “I couldn’t put a probability on it, but it’s certainly a possibility. We always try to minimize those but it is a tool in the toolbox.”

The CAISO manages the flow of electricity across the high-voltage power lines for about 80 percent of the state, plus a small part of Nevada.

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Man charged with murder, kidnapping their 5-year-old child before fleeing to Mexico

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Man charged with murder, kidnapping their 5-year-old child before fleeing to Mexico


A 40-year-old Los Angeles man was charged with murder after allegedly killing his girlfriend and kidnapping their young child before fleeing to Mexico, according to authorities.

Ruben Fregosojuarez has been charged one count of murder and one misdemeanor count of child abuse under circumstance or conditions other than great bodily injury or death, according to a Los Angeles County District Attorney’s Office news release. Authorities first identified him as Ruben Fregoso but Los Angeles County prosecutors listed him as Ruben Fregosojuarez.

On Monday around 12:39 p.m., the Los Angeles Police Department conducted a welfare check in the 2600 block of South Alsace Avenue in West Adams, police said in a news release.

Officers found a woman dead inside the home “as a result of violence” and the woman’s daughter missing, police said. On Monday night, the California Highway Patrol issued an Amber Alert for the child, Daleza.

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Photos obtained by NBC4 appear to show Fregosojuarez in a parking garage in San Ysidro with the girl on Sunday. The California Highway Patrol has listed her age as 4 years old but Los Angeles police say the girl is 5. She is also described as the suspect’s daughter.

The alert said that the girl was last seen with Fregosojuarez, who allegedly abducted her in a 2019 Land Rover Discovery, on Sunday at about 4 a.m.

The CHP posted in an update that the vehicle was found but that the child and man were still missing. The girl is described as 3 feet tall, 45 pounds, and having black hair and brown eyes.



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23andMe Sued by California Over Massive 2023 Data Breach

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23andMe Sued by California Over Massive 2023 Data Breach


California’s attorney general is suing the consumer genetics testing company formerly known as 23andMe, alleging the company failed to protect customers’ sensitive personal information in a massive 2023 data breach that exposed the ancestry and genetic data of nearly 7 million people.

Attorney General Rob Bonta filed the lawsuit on Thursday in San Francisco Superior Court against Chrome Holding Co., formerly known as 23andMe, accusing the company of failing to properly investigate or respond to numerous warnings that its systems had been compromised. The company’s mail-in self-testing kits became synonymous with DNA testing before it filed for bankruptcy in 2025.

In 2023, cybercriminals breached 23andMe’s systems by using a “credential-stuffing attack,” which involves bombarding online accounts with huge sets of user names and passwords stolen in previous unrelated attacks. Over a period of months, the intruders were able to make off with the personal data of more than 6.9 million people.

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“23andMe’s security measures were so lax that the threat actor was able to operate undetected within 23andMe’s systems for over five months, and remarkably, 23andMe only began investigating after the threat actor offered the stolen user data for sale on the dark web and reached out to 23andMe to demand a ransom,” Bonta’s office said in the complaint. 

The San Francisco-based company, which allowed people to submit genetic materials and get a snapshot of their ancestry, revealed in October 2023 that hackers had accessed customer information in the prolonged data breach that targeted customers with Chinese or Ashkenazi Jewish ancestry. The stolen data of more than 1 million Asian-Pacific Islander and Ashkenazi Jewish users was later posted for sale on the dark web. 

“The sale of this data on the dark web took place amidst a period of mounting anti-Asian American and Pacific Islander and antisemitic hate and violence,” Bonta said in a press release. “This is disturbing and incredibly dangerous.”

 A January 2024 lawsuit accused the company of not doing enough to protect its customers and not notifying certain customers that their data had been targeted specifically. It later settled the lawsuit for $30 million.

23andMe representatives didn’t immediately respond to a request for comment.

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At its peak, 23andMe became the best-known name in the emerging area of DNA self-testing, with users paying upwards of $99 for kits that gave them insights into their genetic makeup, potential relatives and ancestry. But the company’s momentum slowed down in recent years after its $3.5 billion public offering in 2021.

Last July, TTAM Research Institute, a nonprofit led by Anne Wojcicki, 23andMe’s cofounder and former CEO, acquired 23andMe’s assets for $305 million.    





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Newsom signs law to shield California elections from federal interference

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Newsom signs law to shield California elections from federal interference


Gavin Newsom, California’s governor, signed legislation Wednesday that aims to shield California elections from federal interference, saying he expected Donald Trump’s administration to try to meddle in the midterms this year.

The law, which took effect immediately and came days before next Tuesday’s primary, prohibits any person – including federal agents – from accessing voter rolls or election technology without a court order. Law enforcement officers are restricted from disrupting election workers, except in public safety emergencies.

Trump administration officials so far have said they have no plans to send immigration agents to polling locations across the US, a concern raised this year by several Democratic secretaries of state. But Newsom warned “we have to be prepared for everything” because “there’s no rules any more with the Trump administration”.

Voting is already under way in California’s closely watched primary for governor, where a crowded field of Democrats and two viable Republicans are vying for just two spots on the November ballot. Under the state’s open primary system, only the top two vote-getters advance to the general election, regardless of party affiliation.

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Newsom, who cannot seek a third term, said the election law is a response to “legitimate anxiety” about Trump’s tactics, primarily in Democratic-led states, where the president has deployed federal agents over the objections of local leaders. The Democratic governor warned against underestimating someone who “doesn’t believe in free and fair elections”.

“I expect the worst with Trump because he’s done the worst,” he said at a news conference.

White House spokesperson Abigail Jackson told the Associated Press later Wednesday that Trump is committed to ensuring that Americans have full confidence in the administration of elections.

“Instead of levying false attacks at the President, Newscum should look in the mirror,” she said in a statement, using Trump’s derogatory nickname for Newsom.

In an interview last year with Vanity Fair, Susie Wiles, the White House chief of staff, knocked down the idea that Trump would deploy the military to suppress voting, saying it was “categorically false”.

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The California law also makes it a crime to knowingly take voted ballots out of the custody of election officials.

Earlier this year, the FBI under Trump seized the 2020 general election ballots from Georgia’s most populous county, which is heavily Democratic and has long been at the center of the president’s false claims that fraud cost him the race. The FBI and justice department also have sought records from previous elections in the largest counties in Arizona and Michigan.

Trump triggered a national redistricting frenzy ahead of the midterms when he urged Republicans in Texas and elsewhere to redraw their US House districts to help the party retain control of the closely divided chamber. Missouri, North Carolina, Ohio, Florida and Tennessee also have enacted new maps that could benefit Republicans, and Louisiana is expected to be next.

Republicans so far think they could gain as many as 14 seats from redistricting in November, while Democrats think they could gain six in California and Utah.



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