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| Tesla Solar Panel roof installation. |
In a significant move to solidify its position in the renewable energy market, Tesla has officially launched its first proprietary solar panel modules, manufactured at its Gigafactory in Buffalo, New York. This expansion marks a pivotal shift for the company, which previously relied on third-party manufacturers for the solar generation component of its home energy systems. By producing panels alongside its Solar Roof tiles and Supercharger components, Tesla is now offering a fully integrated, end-to-end home energy solution.
From Storage to Generation: Closing the Loop
While Tesla has been a dominant force in energy storage and management with its Powerwall 3 and Solar Inverter, the solar generation piece has, until now, been outsourced. The introduction of the Tesla Solar Panel (TSP) series changes that, allowing the company to control the entire customer experience—from energy generation on the roof to storage in the garage and management via its app.
"By designing and manufacturing our own solar panels, we can ensure they work seamlessly with our storage and inverter technology, simplifying the process for homeowners and lowering overall system costs," a Tesla Energy spokesperson noted.
Specifications & Innovation: Designed for Speed and Efficiency
The new panels come in two models: the TSP-415 and TSP-420, named for their wattage output. Key specifications include:
Power: 420W or 415W
Efficiency: 20.5% module efficiency
Dimensions: 71.1” x 44.7” x 1.57” (with frame)
Weight: 49 lbs
A standout feature is the rail-less installation system. Unlike traditional solar arrays that require mounting rails and clamps, Tesla’s panels integrate directly with a proprietary mounting foot. This design is credited with reducing installation time by an impressive 33%, as it eliminates multiple steps and requires 15% less drilling into the roof.
Enhanced Performance with "Triple Zone" Technology
Beyond installation ease, Tesla is promoting superior performance in real-world conditions. The new panels feature triple the energy generation zones compared to conventional modules. This means if a section of the panel is shaded by a chimney, vent, or tree branch, the rest of the cells can continue operating at peak efficiency, minimizing energy loss—a common issue for residential rooftops with obstructions.
For homeowners and installers interested in the full technical details and design, Tesla has published comprehensive information on its official solar panels page.
A Complete Home Energy Ecosystem
The TSP modules are engineered to be part of Tesla’s holistic Home Energy Ecosystem. They are optimized to pair perfectly with the Tesla Solar Inverter and Powerwall 3 battery, creating a unified system for energy independence. While the panels can be purchased separately, Tesla emphasizes the benefits of the integrated kit for a faster, more streamlined installation.
Customers can choose to have their system installed directly by Tesla or through its network of certified third-party installers.
Strategic Timing Amid Shifting Incentives
The launch comes at a strategic time. The residential solar industry is adapting to changes in federal policy, including the phased reduction of the Investment Tax Credit (ITC). By bringing panel production in-house and streamlining installation, Tesla aims to reduce hardware and labor costs, helping to offset diminishing tax incentives and make solar more accessible.
Tesla will continue to offer its premium, integrated Solar Roof for customers seeking a complete roofing solution. The new traditional-style panels provide another option for installers and homeowners, leveraging Tesla’s cascading cell technology for a low-profile, aesthetically pleasing look.
With this launch, Tesla is no longer just a partner in the solar space—it’s a full-stack provider, controlling every link in the chain from its Buffalo factory to the homeowner's roof.
New Tesla Solar Panel & Tesla Panel Mount now available
— Tesla Energy (@teslaenergy) January 29, 2026
Solar Panel
– 420W
– Uses same cascading cell technology as our Solar Roof cells to create 18 power zones (3x more than conventional panels). This reduces energy loss in shaded conditions & produces more energy
Panel… pic.twitter.com/c7ayw9wFeQ