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Tesla Energy to power SoCal through world’s largest lithium-ion battery storage project
Tesla Energy has announced that the company has been selected by Southern California Edison to provide a 20-Megawatt Powerpack system to the Mira Loma substation. According to the Silicon Valley energy company, the system will be the world’s largest lithium ion battery storage project when complete, and will be capable of powering more than 2,500 households for a day and charge 1,000 Teslas
Cells for the Powerpack commercial-grade energy storage unit will be produced at the company’s Gigafactory plant in Sparks, Nevada. Tesla says through its blog post, “The Gigafactory’s ability to produce at a large scale will allow this system to be manufactured, shipped, installed and commissioned in three months. The system will charge using electricity from the grid during off-peak hours and then deliver electricity during peak hours to help maintain the reliable operation of Southern California Edison’s electrical infrastructure which feeds more than 15 million residents.”
The project comes after a methane gas spill took place at Aliso Canyon in Southern California last October. Over 8,000 Californians were displaced after 1.6 million pounds of methane leaked into the atmosphere as a result of a rupture in the natural gas reservoir. Soon after the Governor of California declared a state of emergency, the state’s utilities commission spawned a project that would ultimately see an energy storage solution for LA. Tesla won the bid to provide an 20MW/80MWh battery storage solution that would allow utility companies to off load energy generation from off-peak hours to times of peak demand when electricity needs can be bursty.
Addressing Peak Energy Demand with the Tesla Powerpack
Last October, a catastrophic rupture in the Aliso Canyon natural gas reservoir caused a methane gas spill that displaced more than 8,000 Californians and released an unprecedented 1.6 million pounds of methane into the atmosphere. Today, the Aliso Canyon leak is considered the worst in U.S. history, with aggregate greenhouse gas emissions said to outweigh those of the 2010 Deepwater Horizon oil spill.
Following the disaster, authorities closed the Aliso Canyon facility, which had been feeding the network of natural gas peaker plants in the Los Angeles basin, deeming it unfit to store the fuel safely and environmentally.
One year later, Los Angeles is still in need of an electric energy solution that ensures reliability during peak times. As winter approaches, homes and buildings in the basin will need more natural gas for heat. These demands apply uncharacteristically high pressure to the energy system, exposing the Los Angeles basin to a heightened risk of rolling blackouts.
Following the leak, California Governor Jerry Brown issued a state of emergency, and in May, the California Public Utilities Commission mandated an accelerated procurement for energy storage. Southern California Edison, among other utilities, was directed to solicit a utility-scale storage solution that could be operational by December 31, 2016. Unlike traditional electric generators, batteries can be deployed quickly at scale and do not require any water or gas pipelines.
Last week, through a competitive process, Tesla was selected to provide a 20 MW/80 MWh Powerpack system at the Southern California Edison Mira Loma substation. Tesla was the only bidder awarded a utility-owned storage project out of the solicitation.
Upon completion, this system will be the largest lithium ion battery storage project in the world. When fully charged, this system will hold enough energy to power more than 2,500 households for a day or charge 1,000 Tesla vehicles.
The Gigafactory’s ability to produce at a large scale will allow this system to be manufactured, shipped, installed and commissioned in three months. The system will charge using electricity from the grid during off-peak hours and then deliver electricity during peak hours to help maintain the reliable operation of Southern California Edison’s electrical infrastructure which feeds more than 15 million residents. By doing so, the Tesla Powerpack system will reduce the need for electricity generated by natural gas and further the advancement of a resilient and modern grid.
In order to achieve a sustainable energy future, one which has high penetration of solar and electric vehicles, the world needs a two-way, flexible electric grid. The electric power industry is the last great industry which has not seen the revolutionary effects of storage. Working in close collaboration with Southern California Edison, the Tesla Powerpack system will be a landmark project that truly heralds the new age of storage on the electric grid.
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Tesla gets a win in Sweden as union withdraws potentially “illegal” blockade
As per recent reports, the Vision union’s planned anti-Tesla action might have been illegal.
Swedish union Vision has withdrawn its sympathy blockade against Tesla’s planned service center and showroom in Kalmar. As per recent reports, the Vision union’s planned anti-Tesla action might have been illegal.
Vision’s decision to pull the blockade
Vision announced the blockade in early December, stating that it was targeting the administrative handling of Tesla’s facility permits in Kalmar municipality. The sympathy measure was expected to start Monday, but was formally withdrawn via documents sent to the Mediation Institute and Kalmar Municipality last week.
As noted in a Daggers Arbete report, plans for the strike were ultimately pulled after employer group SKR highlighted potential illegality under the Public Employment Act. Vision stressed its continued backing for the Swedish labor model, though Deputy negotiation manager Oskar Pettersson explained that the Vision union and IF Metall made the decision to cancel the planned strike together.
“We will not continue to challenge the regulations,” Petterson said. “The objection was of a technical nature. We made the assessment together with IF Metall that we were not in a position to challenge the legal assessment of whether we could take this particular action against Tesla. Therefore, we chose to revoke the notice itself.”
The SKR’s warning
Petterson also stated that SKR’s technical objection to the Vision union’s planned anti-Tesla strike framed the protest as an unauthorized act. “It was a legal assessment of the situation. Both for us and for IF Metall, it is important to be clear that we stand for the Swedish model. But we should not continue to challenge the regulations and risk getting judgments that lead nowhere in the application of the regulations,” he said.
Vision ultimately canceled its planned blockade against Tesla on December 9. With Vision’s withdrawal, few obstacles remain for Tesla’s long-planned Kalmar site. A foreign electrical firm completed work this fall, and Tesla’s Careers page currently lists a full-time service manager position based there, signaling an imminent opening.
Tesla Semi Program Director Dan Priestly teased the major improvements to the all-electric Class 8 truck on Thursday night, following the company’s decision to overhaul the design earlier this year.
Priestley said he drove the Semi on Thursday, and the improvements appear to be welcomed by one of the minds behind the project. “Our customers are going to love it,” he concluded.
Just drove the redesigned Semi. Our customers are going to love it. https://t.co/KZ88sf1CDL
— Dan Priestley (@danWpriestley) December 19, 2025
The small detail does not seem like much, but it is coming from someone who has been involved in the development of the truck from A to Z. Priestley has been involved in the Semi program since November 2015 and has slowly worked his way through the ranks, and currently stands as the Director of the program.
Tesla Semi undergoes major redesign as dedicated factory preps for deliveries
Tesla made some major changes to the Semi design as it announced at the 2025 Annual Shareholder Meeting that it changed the look and design to welcome improvements in efficiency.
Initially, Tesla adopted the blade-like light bar for the Semi, similar to the one that is present on the Model Y Premium and the Cybertruck.
Additionally, there are some slight aesthetic changes to help with efficiency, including a redesigned bumper with improved aero channels, a smaller wraparound windshield, and a smoother roofline for better aero performance.
All of these changes came as the company’s Semi Factory, which is located on Gigafactory Nevada’s property, was finishing up construction in preparation for initial production phases, as Tesla is planning to ramp up manufacturing next year. CEO Elon Musk has said the Semi has attracted “ridiculous demand.”
The Semi has already gathered many large companies that have signed up to buy units, including Frito-Lay and PepsiCo., which have been helping Tesla test the vehicle in a pilot program to test range, efficiency, and other important metrics that will be a major selling point.
Tesla will be the Semi’s first user, though, and the truck will help solve some of the company’s logistics needs in the coming years.
Tesla is dominating in the United Kingdom so far through 2025, and with about two weeks left in the year, the Model Y and Model 3 are leading the way.
The Model Y and Model 3 are the two best-selling electric vehicles in the United Kingdom, which is comprised of England, Scotland, Wales, and Northern Ireland, and it’s not particularly close.
According to data gathered by EU-EVs, the Model Y is sitting at 18,890 units for the year, while the Model 3 is slightly behind with 16,361 sales for the year so far.
The next best-selling EV is the Audi Q4 e-tron at 10,287 units, lagging significantly behind but ahead of other models like the BMW i4 and the Audi Q6 e-tron.
GOOD NEWS 🇬🇧 Tesla is absolutely crushing the UK electric vehicle market in 2025 💥
The numbers are in, and the dominance is clear. With an impressive amount of 42,270 vehicles delivered year-to-date, the brand now commands a solid 9.6% market share of the total auto market 🆒… pic.twitter.com/dkiGX9kzd0
— Ming (@tslaming) December 18, 2025
The Model Y has tasted significant success in the global market, but it has dominated in large markets like Europe and the United States.
For years, it’s been a car that has fit the bill of exactly what consumers need: a perfect combination of luxury, space, and sustainability.
Both vehicles are going to see decreases in sales compared to 2024; the Model Y was the best-selling car last year, but it sold 32,610 units in the UK. Meanwhile, the Model 3 had reached 17,272 units, which will keep it right on par with last year.
Tesla sold 50,090 units in the market last year, and it’s about 8,000 units shy of last year’s pace. It also had a stronger market share last year with 13.2 percent of the sales in the market. With two weeks left in 2025, Tesla has a 9.6 percent market share, leading Volkswagen with 8 percent.
The company likely felt some impact from CEO Elon Musk’s involvement with the Trump administration and, more specifically, his role with DOGE. However, it is worth mentioning that some months saw stronger consumer demand than others. For example, sales were up over 20 percent in February. A 14 percent increase followed this in June.
Tesla gets a win in Sweden as union withdraws potentially “illegal” blockade
Tesla Semi program Director teases major improvements
