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What to expect from Tesla’s solar roof event on October 28

Tesla Motors, Inc. has sent invitations to a product reveal on Friday, October 28, 2016 at Universal Studios in Los Angeles. The product announcement is a formality, as Tesla CEO Elon Musk tweeted on September 22: “Aiming for Oct 28 unveil in SF Bay Area of new Tesla/SolarCity solar roof with integrated Powerwall 2.0 battery and Tesla charger.”
Tesla is in the process of buying SolarCity in a deal worth $2.6 billion. The proposed Tesla/ SolarCity merger vote goes to the shareholders on Nov. 17. Friday’s upcoming announcement offers Tesla an opportune platform as it attempts to persuade shareholders that the merger has sound financial merit. Should the two companies join into one consolidated brand, the Tesla label would prevail, according to Motley Fool, with roof systems marketed alongside vehicles and energy storage products.
How can Musk’s vision for photovoltaic units integrated into the roof itself change the industry?
Traditional rooftop solar panels are attached to roofs using metal mounting systems. But Musk’s plans for an actual roof that’s integrated with a series of solar panels is a step into a new dimension of decentralized renewable energy systems. That means that re-roofing, which is generally required about every 20 years, could migrate into a common pattern of homeowners switching to the solar roof option. While likely more expensive than a conventional roof-mounted panel, the Tesla solar roof will offer homeowners the incentives of savings in power production, endurance of the product, and overt symbolism of a sustainable lifestyle. The latter may have a profound effect on the highly-desired millennial market.
Musk has emphasized that the new solar roof product is “a fundamental part of achieving a differentiated product strategy.” The solar roof concept incorporates Tesla’s Powerwall, with 6.4 kWh storage capacity, sufficient to power most homes during the evening using electricity generated by solar panels during the day. The Powerwall can also act as a backup electrical system in the event of a power outage. Multiple batteries may be installed together for homes with greater energy needs. The upcoming Powerwall 2.0 will simplify the process of installation and feature a charger for Tesla automobiles.
A typical Powerwall system includes solar panels, an inverter for converting electricity between direct current and alternating current, a meter for measuring battery charge, and, in backup applications, a secondary circuit that powers key appliances. Each element interacts with the other.
- Panels convert sunlight into electricity that charges Powerwall and powers the home during the day.
- The home battery is charged with electricity generated by solar panels.
- The inverter converts direct current electricity from solar panels, the grid, and Powerwall into the alternating current used by a home’s lights, appliances, and devices.
A Tesla/ SolarCity partnership also has the gravitas to succeed where others have failed. Research and development around building integrated solar has been underway by various companies for years, including some systems that moved into the development stage. However, cost factors as well as inefficient electricity generation have tabled many of these efforts. Recently, Dow Chemical ceased production of its solar shingles, citing a lack of sales, according to Fortune.
Among many partnerships, Tesla is now providing batteries for Swell Energy as part of its all-in-one home management energy system. It also recently announced its pledge with Panasonic to produce solar cells at a manufacturing facility in Buffalo, New York should the Tesla/ SolarCity merger reach stockholder approval.
Already, the Tesla Powerwall unit is in demand in areas where grid reliability is an issue. Recent power outages in Australia saw demand for the Powerall increase by 30x. This newest announcement comes on the heels of an October 19 frenzy of speculation about another Tesla mystery product, which turned out to be Tesla’s autonomous driving hardware.
Tune in on October 28 to see the live product unveiling via webcast on Tesla’s website or Follow Us on @Twitter to see behind the scenes action from the event.
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Armored Tesla Cybertruck “War Machine” debuts at Defense Expo 2025
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Tesla Megapacks chosen for 548 MWh energy storage project in Japan
Tesla plans to supply over 100 Megapack units to support a large stationary storage project in Japan, making it one of the country’s largest energy storage facilities.

Tesla’s Megapack grid-scale batteries have been selected to back an energy storage project in Japan, coming as the latest of the company’s continued deployment of the hardware.
As detailed in a report from Nikkei this week, Tesla plans to supply 142 Megapack units to support a 548 MWh storage project in Japan, set to become one of the country’s largest energy storage facilities. The project is being overseen by financial firm Orix, and it will be located at a facility Maibara in central Japan’s Shiga prefecture, and it aims to come online in early 2027.
The deal is just the latest of several Megapack deployments over the past few years, as the company continues to ramp production of the units. Tesla currently produces the Megapack at a facility in Lathrop, California, though the company also recently completed construction on its second so-called “Megafactory” in Shanghai China and is expected to begin production in the coming weeks.
READ MORE ON TESLA MEGAPACKS: Tesla Megapacks help power battery supplier Panasonic’s Kyoto test site
Tesla’s production of the Megapack has been ramping up at the Lathrop facility since initially opening in 2022, and both this site and the Shanghai Megafactory are aiming to eventually reach a volume production of 10,000 Megapack units per year. The company surpassed its 10,000th Megapack unit produced at Lathrop in November.
During Tesla’s Q4 earnings call last week, CEO Elon Musk also said that the company is looking to construct a third Megafactory, though he did not disclose where.
Last year, Tesla Energy also had record deployments of its Megapack and Powerwall home batteries with a total of 31.4 GWh of energy products deployed for a 114-percent increase from 2023.
Other recently deployed or announced Megapack projects include a massive 600 MW/1,600 MWh facility in Melbourne, a 75 MW/300 MWh energy storage site in Belgium, and a 228 MW/912 MWh storage project in Chile, along with many others still.
What are your thoughts? Let me know at zach@teslarati.com, find me on X at @zacharyvisconti, or send us tips at tips@teslarati.com.
Tesla highlights the Megapack site replacing Hawaii’s last coal plant
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Elon Musk responds to Ontario canceling $100M Starlink deal amid tariff drama
Ontario Premier Doug Ford said, opens new tab on February 3 that he was “ripping up” his province’s CA$100 million agreement with Starlink in response to the U.S. imposing tariffs on Canadian goods.

Elon Musk company SpaceX is set to lose a $100 million deal with the Canadian province of Ontario following a response to the Trump administration’s decision to apply 25 percent tariffs to the country.
Starlink, a satellite-based internet service launched by the Musk entity SpaceX, will lose a $100 million deal it had with Ontario, Premier Doug Ford announced today.
Starting today and until U.S. tariffs are removed, Ontario is banning American companies from provincial contracts.
Every year, the Ontario government and its agencies spend $30 billion on procurement, alongside our $200 billion plan to build Ontario. U.S.-based businesses will…
— Doug Ford (@fordnation) February 3, 2025
Ford said on X today that Ontario is banning American companies from provincial contracts:
“We’ll be ripping up the province’s contract with Starlink. Ontario won’t do business with people hellbent on destroying our economy. Canada didn’t start this fight with the U.S., but you better believe we’re ready to win it.”
It is a blow to the citizens of the province more than anything, as the Starlink internet constellation has provided people in rural areas across the globe stable and reliable access for several years.
Musk responded in simple terms, stating, “Oh well.”
Oh well https://t.co/1jpMu55T6s
— Elon Musk (@elonmusk) February 3, 2025
It seems Musk is less than enthused about the fact that Starlink is being eliminated from the province, but it does not seem like all that big of a blow either.
As previously mentioned, this impacts citizens more than Starlink itself, which has established itself as a main player in reliable internet access. Starlink has signed several contracts with various airlines and maritime companies.
It is also expanding to new territories across the globe on an almost daily basis.
With Mexico already working to avoid the tariff situation with the United States, it will be interesting to see if Canada does the same.
The two have shared a pleasant relationship, but President Trump is putting his foot down in terms of what comes across the border, which could impact Americans in the short term.