Subaru has reached a new sustainability milestone in the United States after bringing a rooftop solar system online at its Indiana manufacturing facility that now produces more clean electricity than its latest expansion consumes. The development highlights the automaker’s push to reduce emissions while lowering long-term energy costs at its largest US production site. Subaru’s US Factory Now Generates More Clean Power Than It Uses.
The solar installation sits atop a newly expanded section of Subaru’s Lafayette factory and has a capacity of 204 kilowatts. The system entered service in August 2025 and is already supplying renewable electricity to the plant’s operations. Importantly, the array generates more than three times the power required by the new expansion, allowing excess clean energy to be redirected across the facility.
Subaru of Indiana Automotive is the company’s only vehicle assembly plant outside Japan. The factory produces several gas-powered models for the North American market, including the Ascent, Crosstrek, and Forester. While Subaru’s all-electric Solterra is currently manufactured in Japan, the Indiana facility plays a central role in the brand’s regional operations and sustainability strategy.
By producing surplus electricity on-site, Subaru can offset a significant portion of its energy demand without relying on external sources. The company estimates the solar system will reduce carbon dioxide emissions by more than 250 metric tons each year. That reduction is comparable to the annual electricity use of approximately 43 homes, underscoring the environmental impact of the project.
Over its expected 30-year lifespan, the rooftop installation is projected to generate millions of kilowatt-hours of clean electricity. This long-term output supports Subaru’s broader commitment to reducing greenhouse gas emissions while improving operational efficiency across its manufacturing footprint.
The solar project builds on a long history of environmental initiatives at the Lafayette plant. The facility was the first auto assembly factory in the United States to achieve zero-landfill status. Subaru continues to invest in technologies and processes that minimize waste, conserve natural resources, and lower its overall carbon footprint.
Subaru partnered with Emergent Solar Energy to design and construct the rooftop system. The West Lafayette-based company specializes in solar and energy storage projects for manufacturers and agricultural operations, supporting Indiana’s growing clean energy sector.
As automakers face increasing pressure to decarbonize production, Subaru’s Indiana project demonstrates how on-site renewable energy can deliver both environmental and economic benefits. The surplus power generated at the facility positions the company to further reduce emissions while strengthening the resilience of its US manufacturing operations.
