

Energy
A Stand for Solar: How a united movement helped pause CA’s solar tax proposal — at least for now
Earlier this month, a small miracle of sorts happened in California. The California Public Utilities Commission’s (CPUC) proposed new net metering rules (NEM 3.0) hit an indefinite “Pause” button. Through an email, Administrative Law Judge Kelly Hymes notified parties officially involved in its proceedings that the proposed decision on NEM 3.0 and its implementation “will not appear on the Commission’s voting meeting agenda until further notice.”
Getting to that point was nothing short of a Herculean task, and looking at the factors that may have contributed to this halt is a story worth telling. The movement that opposed the CPUC’s NEM 3.0 proposal is quite extraordinary, as it involved the combined efforts of companies such as Tesla and environmental organizations such as The Climate Center and the Environmental Working Group (EWG), to name a few. But before we get to the story of how NEM 3.0 was halted, we must look at why the proposal was controversial in the first place.
A Proposal with Heavy Backing
Initially unveiled last December, NEM 3.0 shocked climate advocates due to its proposed changes to the state’s rules on residential solar solutions. If passed, NEM 3.0 would charge solar users with a “grid participation charge” of $8/kWh of installed solar. Tesla estimated that an $8/kWh charge could add between $50-$80/month to a solar customer’s power bill. NEM 3.0 would also dramatically cut the compensation that homeowners with solar receive for the power they give back to the grid. NEM 3.0 supporters framed these proposed changes as a way for low-income families to not be burdened with the cost of maintaining the grid.
Supporters of NEM 3.0 advocated the idea that California’s existing solar rules take from the disadvantaged and give to the wealthy. Organizations such as Affordable Energy for All, whose coalition includes companies like Pacific Gas & Electric, Southern California Edison, and San Diego Gas & Electric, heavily pushed this “rich vs. poor” narrative. The CPUC’s 204-page proposal, which referenced a Lookback Study from Verdant Associates, was the same way. It argued that NEM 2.0, California’s current system, (a) negatively impacted non-participant ratepayers, (b) is not cost-effective, and (c) disproportionately harms low-income customers who are not participating in the net energy metering tariff program.
The Lookback Study had detractors from the get-go. The California Solar & Storage Association (CALSSA), the Solar Energy Industries Association (SEIA), and Vote Solar expressed their reservations about the validity and value of the study, with the groups arguing that the research does not properly evaluate the existing NEM 2.0 program. Despite these reservations, the CPUC stated in its proposal that it believes that the Lookback Study’s conclusions are sound.
“We find the Lookback Study to be a sound analysis of the NEM 2.0 tariff and that it should be used in the development of a successor tariff. CALSSA and SEIA/Vote Solar would have the Commission dismiss the study because it is ‘backward-looking.’ The evaluation of the NEM 2.0 tariff tells us whether the tariff is or is not performing as required, thus establishing a foundation for creating the successor tariff. We recognize, as SEIA/Vote Solar states, that the study does not tell the complete story. However, the Lookback Study can inform us of what not to do. Furthermore, CALSSA’s contention that the study’ assumptions are or appear flawed’ does not persuade us; CALSSA and all stakeholders have been given several opportunities to weigh in on the development and drafting of the study. A disagreement on an assumption does not equate to a flaw in the assumption,” the CPUC’s proposal read.
A Widespread Opposition
Despite the CPUC’s apparent efforts to push through with NEM 3.0, the proposal had one glaring problem: it was highly unpopular outside the initiative’s direct proponents. Electric vehicle and energy company Tesla promptly directed its Engage program on the issue, urging California residents to make their voices heard. Tesla CEO Elon Musk openly opposed the proposal on his Twitter account as well, describing it as a “bizarre, anti-environment move” by the state.
Survey results did not side with NEM 3.0, which energy research firm Wood Mackenzie believes could cut California’s solar market by half by 2024. A survey conducted by Newport Beach-based Probolsky Research revealed that California voters overwhelmingly opposed the CPUC’s proposed changes to the state’s solar rules. Among the survey’s respondents, 64% stated that they were opposed to NEM 3.0, 15% were unsure, and only 20% supported the CPUC’s proposal. Interestingly enough, every demographic group involved in the survey opposed NEM 3.0.
Teslarati chatted with Probolsky Research President Adam Probolsky, who explained that “while the survey did not look at its results by income level, nothing about the data suggests any difference based on respondents’ socioeconomic standing.” This hinted that the narrative being pushed by some NEM 3.0 supporters, which attempted to paint a picture of wealthy solar adopters taking advantage of the less fortunate, may not be that accurate after all.
To state that California made solar mainstream may not be an understatement, so it was no surprise that many in the state made it a point to fight against NEM 3.0. Over 120,000 public comments urging the state to save the solar industry were delivered to the CPUC in December, and high-profile figures spoke up against the proposal. These included former CA Governor Arnold Schwarzenegger, who flat-out called the proposal a “solar tax,” and Senator Dianne Feinstein, who made her opposition to NEM 3.0 evident. Even Hollywood and sports personalities used their voices to call for California’s solar industry not to be hobbled by NEM 3.0.
NEM 3.0 is so controversial that solar advocates outside the United States perceived the CPUC’s proposal with a certain level of disbelief. This was true for solar supporter and co-founder of FindTheVenue.pk Ali Rehman, who told Teslarati that NEM 3.0 — at least from the point of view of a renewable energy supporter outside the US such as himself — is nothing short of insane.
“People go solar because of high energy costs; energy costs are high due to negligence, not solar. Lobbyists and public relations firms re-wrote the facts and scripted the blame for higher prices not on bad – negligent – maintenence policies but on families who protect themselves from those higher prices, by going solar. The truth is that solar is for everyone and most beneficiaries are low-income and in disadvantaged communities,” Rehman said.
A Hard-Earned Pause
For now, NEM 3.0 has been paused. The CPUC’s new president, Alice Busching Reynolds, has requested additional time to “analyze the record and consider revisions” to the proposed initiative based on party comments. An email from one of the administrative judges on the commission also mentioned that Reynolds wishes to ensure that all five commissioners can participate in a session that covers arguments about the pros and cons of NEM 3.0.
It’s difficult to determine the exact factors that led to the vote on NEM 3.0 being suspended until further notice, but one cannot discount the collaborative efforts of multiple parties who worked together under the same goal. From companies like Tesla to climate organizations, initiatives that gathered the voices of solar supporters across the state and beyond seemed to have a positive effect. The Climate Center CEO Ellie Cohen highlighted this in a statement:
“This decision would not have happened without clean energy and justice advocates across California… This issue united climate activists, solar industry employees, working-class solar customers, and more to stand up for energy resilience, affordability, and equity. People across the state are increasingly demanding local, clean energy resources in the face of wildfires, public safety power shut-offs, and rising investor-owned utility rates. As the CPUC goes back to the drawing board, we urge them to craft a solar rate structure that benefits all Californians, not corporate utilities,” Cohen said.
However, Environmental Working Group (EWG) President and Bay Area resident Ken Cook told Teslarati that the battle for California’s residential solar industry is still ongoing.
“The moment to unleash the full potential of the clean energy revolution in California is upon us, and it is imperative regulators take every opportunity to embrace it. The coalition of more than 600 organizations that oppose the CPUC/utility plot to crush rooftop solar and exact a hefty solar tax on working-class families include numerous environmental justice and affordable housing organizations, labor unions and communities of faith, among others. These advocates are fighting to ensure the critical financial incentives remain in place so all California households regardless of income can afford to install solar,” Cook said.
A Battle That’s Yet to be Won
The EWG President’s comments may be accurate. Yes, NEM 3.0’s detractors scored a win by successfully having the vote on the controversial proposal delayed indefinitely. However, the CPUC can still initiate a vote on the issue in the near future. In its updated Engage page, Tesla warned its supporters that the CPUC can still push for a vote on NEM 3.0 as early as March 17. Granted, there’s momentum towards a more reasonable plan for California’s residential solar industry. Governor Gavin Newsom himself admitted that he personally thinks the proposal needs to change. Nevertheless, what lies ahead is likely an uphill battle.
“None of this means the solar tax proposal is dead… PG&E and the other big utilities are lobbying hard for the CPUC to approve it, and getting the five PUC Commissioners to reject or significantly modify it is still an uphill battle. The single most important action members of the public can take at this point is to voice opposition to the solar tax by speaking directly to the five CPUC Commissioners during the public comment period of next meeting on March 17,” Tesla wrote.
Teslarati reached out to the CPUC to inquire what its next steps would be considering the widespread opposition to NEM 3.0. The agency simply provided a link to its Net Energy Metering Revisit page, which provides an outline of the proposal, as well as documents and records related to it.
Considering the battle ahead, James (JD) Dillon, who serves as Chief Marketing Officer at Tigo Energy, urged those who have taken it upon themselves to defend California’s residential solar market to stay alert. In a comment to Teslarati, Dillon highlighted that it would be a mistake to ease the pressure now. If any, now is the time to double down and ensure that NEM 3.0 is really pushed back, or at least modified to a point where it is palatable and fair to California’s existing solar customers.
“Solar is inarguably the right thing for the long term and the solar advocates must keep pushing in the public and political arena. It would be a mistake to take the foot off the gas, as different versions of anti-solar legislation and administrative actions will continue to crop up. The utilities have a very powerful lobby and the hundreds of small businesses and thousands of homeowners that make up the solar coalition must remain vigilant,” Dillon advised.
Don’t hesitate to contact us with news tips. Just send a message to simon@teslarati.com to give us a heads up.
Energy
Tesla Lathrop Megafactory celebrates massive Megapack battery milestone
The Tesla Megapack is the backbone of Tesla Energy’s battery deployments.

The Tesla Lathrop Megafactory recently achieved a new milestone. As per the official Tesla Megapack account on X, the Lathrop Megafactory has produced its 15,000th Megapack 2 XL battery.
15,000 Megapack Batteries
Tesla celebrated the milestone with a photo of the Lathrop Megafactory team posing with a freshly produced Megapack battery. To commemorate the event, the team held balloons that spelled out “15,000” as they posed for the photo.
The Tesla Megapack is the backbone of Tesla Energy’s battery deployments. Designed for grid-scale applications, each Megapack offers 3.9 MWh of energy and 1.9 MW of power. The battery is extremely scalable, making it perfect for massive energy storage projects.
More Megafactories
The Lathrop Megafactory is Tesla’s first dedicated facility for its flagship battery storage system. It currently stands as the largest utility-scale battery factory in North America. The facility is capable of producing 10,000 Megapack batteries every year, equal to 40 GWh of clean energy storage.
Thanks to the success of the Megapack, Tesla has expanded its energy business by building and launching the Shanghai Megafactory, which is also expected to produce 40 GWh of energy storage per year. The ramp of the Shanghai Megafactory is quite impressive, with Tesla noting in its Q1 2025 Update Letter that the Shanghai Megafactory managed to produce over 100 Megapack batteries in the first quarter alone.
Tesla Energy’s Potential
During the first quarter earnings call, CEO Elon Musk stated that the Megapack is extremely valuable to the energy industry.
“The Megapack enables utility companies to output far more total energy than would otherwise be the case… This is a massive unlock on total energy output of any given grid over the course of a year. And utility companies are beginning to realize this and are buying in our Megapacks at scale,” Musk said.
Energy
Tesla Megapacks powers the xAI Colossus supercomputer
Tesla Megapacks step in to stabilize xAI’s Colossus supercomputer, replacing natural gas turbines. Musk’s ventures keep intertwining.

Tesla Megapack batteries will power the xAI Colossus supercomputer in Memphis to ensure power stability. The collaboration between Tesla and xAI highlights the synergy among Elon Musk’s ventures.
The artificial intelligence startup has integrated Tesla Megapacks to manage outages and demand surges, bolstering the facility’s reliability. The Greater Memphis Chamber announced that Colossus, recently connected to a new 150-megawatt electric substation, is completing its first construction phase. This transition addresses criticism from environmental justice groups over the initial use of natural gas turbines.
“The temporary natural gas turbines that were being used to power the Phase I GPUs prior to grid connection are now being demobilized and will be removed from the site over the next two months.
“About half of the operating turbines will remain operating to power Phase II GPUs of xAI until a second substation (#22) already in construction is completed and connected to the electric grid, which is planned for the Fall of 2025, at which time the remaining turbines will be relegated to a backup power role,” the Chamber stated.
xAI’s rapid development of Colossus reflects its ambition to advance AI capabilities, but the project has faced scrutiny for environmental impacts. The shift to Megapacks and grid power aims to mitigate these concerns while ensuring operational continuity.
The Megapack deployment underscores the collaboration among Musk’s companies, including Tesla, SpaceX, Neuralink, and The Boring Company. Tesla appears to be the common link between all of Musk’s companies. For example, The Boring Company built a tunnel in Giga, Texas. In addition, Musk has hinted at a potential collaboration between the Tesla Optimus Bot and Neuralink. And from January 2024 to February 2025, xAI invested $230 million in Megapacks, per a Tesla filing.
Tesla Energy reported a 156% year-over-year increase in Q1 2025, deploying 10.4 GWh of storage products, including Megapacks and Powerwalls. Tesla’s plans for a new Megapack factory in Waller County, Texas, which is expected to create 1,500 jobs in the area, further signal its commitment to scaling energy solutions.
As xAI leverages Tesla’s Megapacks to power Colossus, the integration showcases Musk’s interconnected business ecosystem. The supercomputer’s enhanced stability positions xAI to drive AI innovation, while Tesla’s energy solutions gain prominence, setting the stage for broader technological and economic impacts.
Energy
Tesla Energy celebrates one decade of sustainability
Tesla Energy has gone far since its early days, and it is now becoming a progressively bigger part of the company.

Tesla Energy recently celebrated its 10th anniversary with a dedicated video showcasing several of its milestones over the past decade.
Tesla Energy has gone far since its early days, and it is now becoming a progressively bigger part of the company.
Tesla Energy Early Days
When Elon Musk launched Tesla Energy in 2015, he noted that the business is a fundamental transformation of how the world works. To start, Tesla Energy offered the Powerwall, a 7 kWh/10 kWh home battery system, and the Powerpack, a grid-capable 100 kWh battery block that is designed for scalability. A few days after the products’ launch, Musk noted that Tesla had received 38,000 reservations for the Powerwall and 2,500 reservations for the Powerpack.
Tesla Energy’s beginnings would herald its quiet growth, with the company later announcing products like the Solar Roof tile, which is yet to be ramped, and the successor to the Powerwall, the 13.5 kWh Powerwall 2. In recent years, Tesla Energy also launched its Powerwall 3 home battery and the massive Megapack, a 3.9 MWh monster of a battery unit that has become the backbone for energy storage systems across the globe.
Key Milestones
As noted by Tesla Energy in its recent video, it has now established facilities that allow the company to manufacture 20,000 units of the Megapack every year, which should help grow the 23 GWh worth of Megapacks that have already been deployed globally.
The Powerwall remains a desirable home battery as well, with more than 850,000 units installed worldwide. These translate to 12 GWh of residential entry storage delivered to date. Just like the Megapack, Tesla is also ramping its production of the Powerwall, allowing the division to grow even more.
Tesla Energy’s Role
While Tesla Energy does not catch as much headlines as the company’s electric vehicle businesses, its contributions to the company’s bottom line have been growing. In the first quarter of 2025 alone, Tesla Energy deployed 10.4 GWh of energy storage products. Powerwall deployments also crossed 1 GWh in one quarter for the first time. As per Tesla in its Q1 2025 Update Letter, the gross margin for the Energy division has improved sequentially as well.
-
News5 days ago
Tesla Robotaxi’s biggest challenge seems to be this one thing
-
News2 weeks ago
Tesla confirms massive hardware change for autonomy improvement
-
Elon Musk2 weeks ago
Elon Musk slams Bloomberg’s shocking xAI cash burn claims
-
News2 weeks ago
Tesla features used to flunk 16-year-old’s driver license test
-
News2 weeks ago
Tesla China roars back with highest vehicle registrations this Q2 so far
-
News2 weeks ago
Texas lawmakers urge Tesla to delay Austin robotaxi launch to September
-
News2 weeks ago
Tesla dominates Cars.com’s Made in America Index with clean sweep
-
News2 weeks ago
Tesla’s Grok integration will be more realistic with this cool feature