Connect with us

Energy

Tesla is building a Solar Roof testing structure in the Fremont factory

(Photo: Tesla)

Published

on

A building permit filed by Tesla for its electric vehicle factory in Fremont, CA has shown that the electric car maker is looking to build a structure to evaluate its long-awaited Solar Roof tiles and their installation process. The structure’s permit was issued to Tesla in July.

The description of the project is straightforward. “Construction of a test structure to evaluate Tesla Solar Roof product and installation process. Fire Sprinklers, Fire Alarm, Truss Design, and Solar Designs are deferred submittals,” Tesla wrote. 

The building permit, which was initially mentioned in a CNBC report, suggests that Tesla’s development of its Solar Roof tiles, which have seen notable delays since the product was initially unveiled in October 2016, is moving forward. It should be noted that Elon Musk has remained optimistic about the solar power-generating shingles despite these delays, noting during the Model Y unveiling that 2019 will be the “Year of the Solar Roof and Powerwall.”

A building permit for the Fremont factory’s Solar Roof testing structure.

The delays in the Solar Roof’s rollout have weighed down the company’s energy business. As noted by Tesla in its Q2 Update Letter, the under-utilization of the solar shingles have proven detrimental to the company’s margins for the quarter. “Higher costs from temporary manufacturing under-utilization of our Solar Roof ramp have further contributed to a decrease in margins,” Tesla wrote. 

For Tesla to properly ramp the Solar Roof, the company would have to increase the production of the shingles in Gigafactory 2, the company’s plant in Buffalo, NY. So far, Gigafactory 2’s operations have remained conservative, though the electric car maker’s first annual report to New York’s Empire State Development Corp. back in May has revealed that it had exceeded its 2019 jobs target for the state. 

Tesla’s filings stated that the company had 632 full-time workers through the end of April, comprised of 329 employees at Gigafactory 2 in Buffalo and around 300 more across New York. The number exceeded the state’s requirement of having at least 500 employees in the state by April 30, 2019, though it is still notably far from next year’s target, which requires Tesla to employ 1,460 workers in the state, including at least 500 at Gigafactory 2. If Tesla will indeed ramp the production of the Solar Roof this year, the company would likely start hiring more employees for the facility in the near future. 

Advertisement

Elon Musk, for his part, has remained hopeful for the Solar Roof tiles and their eventual release. In a recent update on Twitter, Musk noted that he hopes to ramp Solar Roof production to a rate of about ~1,000 per week by the end of 2019. The update promptly incited furor from the company’s skeptics, with some critics alleging that the tweet violated Musk’s updated settlement terms with the Securities and Exchange Commission that took effect last April. Despite these strong reactions, the SEC’s press office has so far declined to comment if Musk’s Twitter update violated the CEO’s settlement with the agency.

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

Advertisement
Comments

Energy

Tesla VP hints at Solar Roof comeback with Giga New York push

The comments hint at possible renewed life for the Solar Roof program, which has seen years of slow growth since its 2016 unveiling.

Published

on

tesla-solar-roof-500k
Image Credit: Tesla/Twitter

Tesla’s long-awaited and way underrated Solar Roof may finally be getting its moment. During the company’s Q3 2025 earnings call, Vice President of Energy Engineering Michael Snyder revealed that production of a new residential solar panel has started at Tesla’s Buffalo, New York facility, with shipments to customers beginning in the first quarter of 2026. 

The comments hint at possible renewed life for the Solar Roof program, which has seen years of slow growth since its 2016 unveiling.

Tesla Energy’s strong demand

Responding to an investor question about Tesla’s energy backlog, Snyder said demand for Megapack and Powerwall continues to be “really strong” into next year. He also noted positive customer feedback for the company’s new Megablock product, which is expected to start shipping from Houston in 2026.

“We’re seeing remarkable growth in the demand for AI and data center applications as hyperscalers and utilities have seen the versatility of the Megapack product. It increases reliability and relieves grid constraints,” he said.

Snyder also highlighted a “surge in residential solar demand in the US,” attributing the spike to recent policy changes that incentivize home installations. Tesla expects this trend to continue into 2026, helped by the rollout of a new solar lease product that makes adoption more affordable for homeowners.

Advertisement

Possible Solar Roof revival?

Perhaps the most intriguing part of Snyder’s remarks, however, was Tesla’s move to begin production of its “residential solar panel” in Buffalo, New York. He described the new panels as having “industry-leading aesthetics” and shape performance, language Tesla has used to market its Solar Roof tiles in the past.

“We also began production of our Tesla residential solar panel in our Buffalo factory, and we will be shipping that to customers starting Q1. The panel has industry-leading aesthetics and shape performance and demonstrates our continued commitment to US manufacturing,” Snyder said during the Q3 2025 earnings call.

Snyder did not explicitly name the product, though his reference to aesthetics has fueled speculation that Tesla may finally be preparing a large-scale and serious rollout of its Solar Roof line.

Originally unveiled in 2016, the Solar Roof was intended to transform rooftops into clean energy generators without compromising on design. However, despite early enthusiasm, production and installation volumes have remained limited for years. In 2023, a report from Wood Mackenzie claimed that there were only 3,000 operational Solar Roof installations across the United States at the time, far below forecasts. In response, the official Tesla Energy account on X stated that the report was “incorrect by a large margin.”

Advertisement
Continue Reading

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.

Published

on

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.

Advertisement

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.

Continue Reading

Energy

Tesla recalls Powerwall 2 units in Australia

Published

on

(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.

Continue Reading

Trending