California’s grid gets a record power assist from a 100k home battery fleet
More than 100,000 home batteries across California stepped up as a virtual power plant last week in a scheduled test event, and the results were impressive, according to new analysis from The Brattle Group.
Sunrun was the largest aggregator, Tesla was the largest OEM, and most of the batteries were enrolled
in California’s Demand-Side Grid Support (DSGS) program.
Sunrun’s distributed battery fleet delivered more than two-thirds of the energy during a scheduled two-hour grid support test on July 29. In total, the event pumped an average of 535 megawatts (MW) onto the grid – enough to power over half of San Francisco.
The event, run between 7 and 9 pm, was coordinated by the California Energy Commission, CAISO (California Independent System Operator), and utilities to prepare for stress on the grid during August and September heat waves. And it worked.
Sunrun alone averaged over 360 MW during the two-hour window. The batteries kicked in right when electricity demand typically spikes in the evening, acting just like a traditional power plant, but from people’s homes.
Brattle’s analysis found that the battery output made a visible dent in statewide grid load, when the power is needed most. “Performance was consistent across the event, without major fluctuations or any attrition,” said Ryan Hledik, a principal at The Brattle Group. He called it “dependable, planning-grade performance at scale.”
Residential batteries, Hledik explained, don’t just help shave off demand during critical hours; they can reduce the need for new power plants entirely. “They can serve CAISO’s net peak, reduce the need to invest in new generation capacity, and relieve strain on the system associated with the evening load ramp,” he said.
This isn’t a one-off. Sunrun’s fleet already helped drop peak demand earlier this summer, delivering 325 MW during a similar event on June 24. The company compensates customers up to $150 per battery per season for participating.
Sunrun CEO Mary Powell summed it up: “Distributed home batteries are a powerful and flexible resource that reliably delivers power to the grid at a moment’s notice, benefiting all households by preventing blackouts, alleviating peak demand, and reducing extreme price spikes.”
Read more: The US’s largest virtual power plant now runs on 75,000 home batteries
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Elon wants the US military to start buying Tesla Cybertrucks – and now they are! The Air Force has ordered two Cybertruck testers for target practice to determine how easy they are to blow up, while Jo makes up a whole new conspiracy theory on today’s explosive episode of Quick Charge!
Today’s episode is brought to you by retrospec—makers of sleek, powerful e-bikes and outdoor gear built for everyday adventure. Electrek listeners can get 10% off their next ride until August 14 with the exclusive code ELECTREK10 only at retrospec.com.
An it doesn’t stop there. We’ve also got exciting new home battery backup and V2X options for Tesla owners, and one Texas EV driver that decided to conquer the Texas floodwaters by harnessing the awesome combined powers of electrons and stupidity (it’s pretty awesome).
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Tesla’s Dojo supercomputer project is reportedly over. Bloomberg reports that CEO Elon Musk is killing the project after a mass exodus of talent from the Dojo team to a competing startup.
Dojo was the name of Tesla’s in-house AI chip development to create supercomputers to train its AI models for self-driving.
Tesla hired a bunch of top chip architects and tried to develop better AI accelerator chips to rely less on companies like NVIDIA, AMD, and others.
It has been running into delays for years.
We previously reported on significant setbacks. In 2018, Jim Keller, the famed chip architect who was first hired to lead Tesla’s chip-making effort, left the company.
Ganesh Venkataramanan succeeded him, but he left Tesla in 2023.
For the last few years, Peter Bannon, who worked with Keller for years, has been leading Tesla’s chip-making programs, but he is now reportedly also leaving the automaker.
Bloomberg reports that Musk has “ordered the effort to be shut down.”:
Peter Bannon, who was heading up Dojo, is leaving and Chief Executive Officer Elon Musk has ordered the effort to be shut down, according to the people, who asked not to be identified discussing internal matters. The team has lost about 20 workers recently to newly formed DensityAI, and remaining Dojo workers are being reassigned to other data center and compute projects within Tesla, the people said.
DensityAI is a new startup currently in stealth mode, founded by several former Tesla employees, including Venkataramanan.
It reportedly plans to build chips for AI data centers and robots, much like the Dojo program.
The company recently hired 20 former Tesla employees who worked on Dojo.
While the program appeared to be lagging behind for years as Tesla increasingly bought more compute power from NVIDIA, Musk has been claiming progress.
The CEO said in June:
Tesla Dojo AI training computer making progress. We start bringing Dojo 2 online later this year. It takes three major iterations for a new technology to be great. Dojo 2 is good, but Dojo 3 will be great.
During Tesla’s quarterly conference call in late July, the CEO claimed that Dojo 2 will be “operating at scale sometime next year.”
Electrek’s Take
It’s unclear whether the report is accurate or if it’s an extrapolation from the talent exodus to Elon killing Dojo, or if Elon was lying just a few weeks ago.
Alternatively, this development may be so recent that Elon went from being confident in Dojo a few weeks ago to disbanding the team working on it now.
Either way, I think it’s clear that the project has been lagging, and Tesla has been extremely dependent on chip suppliers rather than making its own.
I think Dojo being likely dead is not a big loss for Tesla.
When it comes to chip making, developing its own inference compute for onboard “AI computers” was always the more important project.
TSMC is set to produce Tesla’s new AI5 chip, which is coming soon, and we have recently learned that Samsung will be manufacturing its AI6 chip.
I think the bigger concern from this report is that it’s the latest example of an ongoing exodus of talent at Tesla.
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Jack Dorsey, co-founder and chief executive officer of Twitter Inc. and Square Inc., listens during the Bitcoin 2021 conference in Miami, Florida, on Friday, June 4, 2021.
Eva Marie Uzcategui | Bloomberg | Getty Images
Block shares jumped in extended trading on Thursday after the fintech company increased its forecast for the year.
Here is how the company did, compared to analysts’ consensus estimates from LSEG.
- Earnings per share: 62 cents adjusted vs. 69 cents expected
Block doesn’t report a revenue figure, but said gross profit rose 14% from a year earlier to $2.54 billion, beating analysts’ estimates of $2.46 billion for the quarter. Gross payment volume increased 10% to $64.25 billion.
Block raised its guidance for full-year gross profit to $10.17 billion, representing 14% growth from a year earlier. In its prior earnings report, Block said gross profit for the year would come in at $9.96 billion.
The company expects full-year adjusted operating income of $2.03 billion, or a 20% margin. For the third quarter, the company expects gross profit to grow 16% from a year ago to $2.6 billion, with an operating margin of 18%.
Square payment volume in the quarter grew 10% from a year earlier.
Block faces growing competition from rivals such as Toast and Fiserv‘s Clover, though its Square business still gained share during the quarter in areas such as retail and food and beverage.
Block shares were down 10% this year as of Thursday’s close, while the Nasdaq is up 10%. Last month, Block was added to the S&P 500.
— CNBC’s Robert Hum contributed to this report.
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