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SolarCity co-founder Peter Rive leaves Tesla ahead of Solar Roof production ramp

Tesla CEO Elon Musk debuts the Solar Roof [Source: Teslarati]

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Tesla has lost a top solar executive.

Peter Rive, a SolarCity co-founder, will be leaving Tesla  in search of other opportunities following the company’s purchase of the solar company.

The departure comes just eight months after Tesla purchased SolarCity for $2.6 billion in a move that Elon Musk pegged as integrating solar operations to drive the Palo Alto-based vehicle company toward its goals for a sustainable future.

The news first surfaced on Greentech Media before being picked up by The New York Times.

“As co-founder and CTO of SolarCity, Pete has played an instrumental role in expanding access to solar to hundreds of thousands of people across the country, helping to accelerate the world’s transition to sustainable energy,” Tesla said. “Pete’s responsibilities, including work on Solar Roof, will be distributed among Tesla’s existing engineering teams. We want to thank Pete for everything he’s done for SolarCity and Tesla.”

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Lyndon Rive, who founded the company with Peter in 2006, resigned in May leaving Tesla without two of SolarCity’s original co-founders. Lyndon and Peter are Elon Musk’s cousins.

Peter Rive was in charge of developing Tesla’s solar roof tiles, which are slated for production this summer and have even sold out until 2018.

Rive said that other engineers at Tesla would take on the development of Tesla’s Solar Roof.

“Work on Solar Roof is being transitioned to other Tesla engineering leaders, who are among the brightest, most accomplished on the planet. I have no doubt they will be able to execute on the plans we have for Solar Roof, which is in my opinion one of the most important products of the century,” wrote Rive in a letter to employees.

Rive is one of several former SolarCity executives to leave Tesla since the company was acquired.

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His decision to leave was also motivated in part “to spend more time exploring the outdoors, more time with my family, and helping non-profit solar projects in the developing world.”  

With Rive gone, more questions surround Tesla’s solar roof development as the roll out begins.

For Rive, he’s happy with the legacy he’s leaving behind.

“I leave feeling proud of everything we’ve done together: we revolutionized the accessibility of solar and scaled to the point that we have over 350,000 solar systems installed — more than any company on the planet,” Rive said in his letter to employees. “I know this is an exciting future for all of you and wish you all of the best going forward.”

 

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Energy

Tesla China’s Megafactory helps boost Shanghai’s battery exports by 20%: report

Located in the Lingang New Area of the Shanghai Free Trade Zone, the Tesla Megafactory has been running at full throttle since opening in February.

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Credit: Tesla Asia/X

Reports from China have indicated that the Tesla Shanghai Megafactory has become a notable player in China’s booming battery export market.

Located in the Lingang New Area of the Shanghai Free Trade Zone, the Tesla Megafactory has been running at full throttle since opening in February. It produces Tesla Megapack batteries for domestic and international use.

Tesla Shanghai Megafactory

As noted in a report from Sina Finance, the Tesla Shanghai Megafactory’s output of Megapack batteries helped drive a notable rise in lithium battery shipments from the city in the first three quarters of 2025. This is quite impressive as the Megafactory is a rather young facility, though it has been steadily increasing its production capacity.

“The establishment of this benchmark factory has not only driven the rapid development of Shanghai’s energy storage industry but also become a new growth engine for foreign trade exports. Driven by the Tesla energy storage factory’s opening, Shanghai’s lithium battery exports reached 32.15 billion yuan ($4.5 billion) in the first three quarters, a 20.7% increase,” the publication wrote.

Ultimately, the Shanghai Megafactory has proved helpful to the city’s “new three” industries, which are comprised of new energy vehicles, lithium batteries, and photovoltaic systems. Exports of the “new three” products reached 112.17 billion yuan ($15.7 billion), a 6.3% year-over-year increase during the same period. The city’s total trade volume grew 5.4% year-over-year as well, with exports up 11.3%, driven largely by the clean energy sector’s performance.

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Energy storage is helping Shanghai

Since opening in February, the Shanghai Megafactory has been firing on all cylinders. In late July, Tesla Energy announced that the new battery factory has successfully produced its 1,000th Megapack unit. That’s quite impressive for a facility that, at the time, had only been operational for less than six months. 

Speed has always been a trademark of the Shanghai Megafactory. Similar to Tesla’s other key facilities in China, the Megafactory was constructed quickly. The facility started its construction on May 23, 2024. Less than a year later, the site officially started producing Megapack batteries. By late March 2025, Tesla China noted that it had shipped the first batch of Megapack batteries from the Shanghai plant to foreign markets.

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Energy

Tesla recalls Powerwall 2 units in Australia

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(Credit: nathanwoodgc /Instagram)

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.

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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.

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Credit: Tesla

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. 

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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.

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