

Energy
Tesla responds after new investigative report questions workers’ safety
After clashing with Tesla last month over the electric car maker’s alleged mislabeling of workplace accidents, Reveal is now citing nine “serious” safety citations directed at the Elon Musk-led company, amounting to $110,863 in fines. In lieu of the new report, Tesla has responded with a statement, stating that it would be filing an appeal with the Occupational Safety and Health Administration (OSHA) to contest the fine.
According to the publication, the accident in question pertained to an employee working in one of the solar energy projects Tesla inherited from SolarCity — a 19-acre solar power system located at the Hampshire College in Amherst, Massachusetts. On December 29, 2017, an employee suffered shock and burn injuries after entering a 13,800-volt electrical panel and taking photos of the equipment with his cellphone. According to a spokesperson from the college, the employee was transported by ambulance and taken to a local hospital, where he was treated and later released.
The Reveal report stated that regulators found that Tesla did not give enough training or provide the correct equipment for the injured employee. A citation for the allegations further claimed that Tesla did not conduct enough inspections for the facility.
Tesla has released a response to Reveal’s latest report. In a statement to the publication, the electric car maker noted that the company had investigated the incident. Tesla further stated that since recovering from his injuries, the employee had returned to work. The electric car company also noted that it would be filing an appeal with the OSHA.
“Nothing is more important to us than the safety and well-being of those who work at Tesla every day. After this accident happened, we did a thorough investigation and learned that the employee was performing work on a piece of equipment that he was not authorized or tasked to work on. He was treated immediately, has since recovered from his injury and has been back working at Tesla for the last few months.”
“It’s worth noting that we’ve never had another incident like this in the more than 250,000 service appointments at SolarCity and Tesla Energy.”
One of SolarCity’s competitors, Vivint Solar, was previously fined $136,708 by OSHA back in November 2017. In February 2017, Vivint Solar was also fined $126,749. After an appeal to the OSHA, however, Vivint was able to reduce its sanction to just $50,000.
In a statement to Reveal, Hampshire College spokesman John Courtmanche stated that the accident had not placed any strain on the college’s relationship with the Elon Musk-led company.
“We have a very good relationship with Tesla. I think we see it as an accident,” Courtmanche said.
Prolific safety violations among American automakers have been reported over the years. Back in 2015, the NHTSA gave General Motors a fine of $900 million over motor vehicle safety violations — the veteran automaker’s costliest sanction to date. The OSHA, the same regulators that fined Tesla, also gave GM a $185,040 sanction back in 2000 over workplace safety/health violations in its now-retired Willow Run Powertrain facility.
Tesla has been open about its intentions of becoming the operators of the safest car factory in the world. Back in February, Tesla VP for Environmental, Health, and Safety (EHS) Laurie Shelby published a blog post outlining the company’s adoption of a proactive stance when it comes to workplace safety, which would enable Tesla to address possible concerns even before an incident happens. Shelby also outlined improvements in the company’s Return to Work program, as well as additional safety training for employees.
Energy
Tesla recalls Powerwall 2 units in Australia

Tesla will recall Powerwall 2 units in Australia after a handful of property owners reported fires that caused “minor property damage.” The fires were attributed to cells used by Tesla in the Powerwall 2.
Tesla Powerwall is a battery storage unit that retains energy from solar panels and is used by homeowners and businesses to maintain power in the event of an outage. It also helps alleviate the need to rely on the grid, which can help stabilize power locally.
Powerwall owners can also enroll in the Virtual Power Plant (VPP) program, which allows them to sell energy back to the grid, helping to reduce energy bills. Tesla revealed last year that over 100,000 Powerwalls were participating in the program.
Tesla announces 100k Powerwalls are participating in Virtual Power Plants
The Australia Competition and Consumer Commission said in a filing that it received several reports from owners of fires that led to minor damage. The Australian government agency did not disclose the number of units impacted by the recall.
The issue is related to the cells, which Tesla sources from a third-party company.
Anyone whose Powerwall 2 unit is impacted by the recall will be notified through the Tesla app, the company said.
Energy
Tesla’s new Megablock system can power 400,000 homes in under a month
Tesla also unveiled the Megapack 3, the latest iteration of its flagship utility scale battery.

Tesla has unveiled the Megablock and Megapack 3, the latest additions to its industrial-scale battery storage solution lineup.
The products highlight Tesla Energy’s growing role in the company, as well as the division’s growing efforts to provide sustainable energy solutions for industrial-scale applications.
Megablock targets speed and scale
During the “Las Megas” event in Las Vegas, Tesla launched Megablock, a pre-engineered medium-voltage block designed to integrate Megapack 3 units in a plug-and-play system. Capable of 20 MWh AC with a 25-year life cycle and more than 10,000 cycles, the Megablock could achieve 91% round-trip efficiency at medium voltage, inclusive of auxiliary loads.
Tesla emphasized that Megablock can be installed 23% faster with up to 40% lower construction costs. The platform eliminates above-ground cabling through a new flexible busbar assembly and delivers site-level density of 248 MWh per acre. With Megablock, Tesla is also aiming to commission 1 GWh in just 20 business days, or enough to power 400,000 homes in less than a month.
“With Megablock, we are targeting to commission 1 GWh in 20 business days, which is the equivalent of bringing power to 400,000 homes in less than a month. It’s crazy. How are we planning to do that? Like most things at Tesla, we are ruthlessly attacking every opportunity to save our customers time, simplify the process, remove steps, (and) automate as much as we can,” the company said.
Megapack 3 is all about simplicity
The Megapack 3 is Tesla’s next-generation utility battery, designed with a simplified architecture that cuts 78% of connections compared to the previous version. Its thermal bay is drastically simplified, and it uses a Model Y heat pump on steroids. The battery weighs about 86,000 pounds and holds 5 MWh of usable AC energy. Tesla engineers incorporated a larger battery module and a new 2.8-liter LFP cell co-developed with the company’s cell team.
The Megapack 3 is designed for serviceability, and it features easier front access and no roof penetrations. About 75% of Megapack 3’s total mass is battery cells, with individual modules weighing as much as a Cybertruck. It’s also tough, with an ambient operating temperature range from -40C to 60C. This should allow the Megapack 3 to operate optimally from the coldest to the hottest regions on the planet.
Production is set to begin at Tesla’s Houston Megafactory in late 2026, with planned capacity of 50 GWh per year. Additional supply will come from Tesla’s 7 GWh LFP facility in Nevada, which is expected to open in 2025, as well as with third-party partners.
Energy
Tesla Energy is the world’s top global battery storage system provider again
Tesla Energy captured 15% of the battery storage segment’s global market share in 2024.

Tesla Energy held its top position in the global battery energy storage system (BESS) integrator market for the second consecutive year, capturing 15% of global market share in 2024, as per Wood Mackenzie’s latest rankings.
Tesla Energy’s lead, however, is shrinking, as Chinese competitors like Sungrow are steadily increasing their global footprint, particularly in European markets.
Tesla Energy dominates in North America, but its lead is narrowing globally
Tesla Energy retained its leadership in the North American market with a commanding 39% share in 2024. Sungrow, though still ranked second in the region, saw its share drop from 17% to 10%. Powin took third place, even if the company itself filed for bankruptcy earlier this year, as noted in a Solar Power World report.
On the global stage, Tesla Energy’s lead over Sungrow shrank from four points in 2023 to just one in 2024, indicating intensifying competition. Chinese firm CRRC came in third worldwide with an 8% share.
Wood Mackenzie ranked vendors based on MWh shipments with recognized revenue in 2024. According to analyst Kevin Shang, “Competition among established BESS integrators remains incredibly intense. Seven of the top 10 vendors last year struggled to expand their market share, remaining either unchanged or declining.”

Chinese integrators surge in Europe, falter in U.S.
China’s influence on the BESS market continues to grow, with seven of the global top 10 BESS integrators now headquartered in the country. Chinese companies saw a 67% year-over-year increase in European market share, and four of the top 10 BESS vendors in Europe are now based in China. In contrast, Chinese companies’ market share in North America dropped more than 30%, from 23% to 16% amid Tesla Energy’s momentum and the Trump administration’s policies.
Wood Mackenzie noted that success in the global BESS space will hinge on companies’ ability to adapt to divergent regulations and geopolitical headwinds. “The global BESS integrator landscape is becoming increasingly complex, with regional trade policies and geopolitical tensions reshaping competitive dynamics,” Shang noted, pointing to Tesla’s maintained lead and the rapid ascent of Chinese rivals as signs of a shifting industry balance.
“While Tesla maintains its global leadership, the rapid rise of Chinese integrators in Europe and their dominance in emerging markets like the Middle East signals a fundamental shift in the industry. Success will increasingly depend on companies’ ability to navigate diverse regulatory environments, adapt to local market requirements, and maintain competitive cost structures across multiple regions,” the analyst added.
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