Is Nissan with Rooftop Solar Panels the Future of EVs?
A breakthrough from Nissan could signal a shift in how renewable energy powers transportation, bringing solar-generated electricity directly to electric vehicles without the intermediary step of grid charging.
The Japanese motor giant showcased a prototype vehicle equipped with an onboard solar power generation system at Japan Mobility Show 2025.
On LinkedIn, Nissan wrote: "Harnessing the power of the sun to go further. A lot further. With a special roof-mounted solar system, this prototype Nissan Sakura EV's driving range potential just got levelled up."
Maximising solar energy capture
The Ao-Solar Extender system has been installed on Japan's top-selling EV, the Nissan Sakura.
Developed in-house, the solar panel system is designed to maximise direct solar energy capture and demonstrate how renewable power can be harnessed at the point of use rather than through conventional charging infrastructure.
According to the team developing the system, it can generate enough solar electricity to power up to 3,000km (1,800 miles) of driving annually.
Advancing renewable mobility integration
Nissan says the concept fits the second pillar of its Re:Nissan strategy – "a renewed commitment to delivering innovative products and mobility solutions that enhance customer experience".
Nissan says: "Integrating solar technology into the Sakura exemplifies Nissan's commitment to innovative, sustainable mobility solutions that resonate within Japan's highly competitive Kei segment.
"This initiative not only reinforces Nissan’s leadership in environmentally conscious innovation but also highlights how the company is actively shaping the future of EV ownership with practical, eco-friendly technologies."
Continuous renewable power generation
The extendable roof-mounted Ao-Solar Extender has a variety of capabilities designed to optimise solar energy collection throughout the day.
It can charge the vehicle while driving and when parked. The fixed roof-mounted panel can capture solar energy even when the vehicle is moving, ensuring continuous renewable power generation during daylight hours.
When stationary, an additional panel extends outward from storage, increasing the solar panel surface area and power generation potential to approximately 500W.
The expanded panel creates shade and blocks sunlight, reducing the temperature inside the car and reducing the need for air conditioning power consumption.
According to Nissan, the system has been designed to "minimise drag and integrate with the Sakura's overall appearance".
Renewable energy resilience solutions
Nissan's Sakura was Japan's best-selling EV for the past three consecutive years and is popular for its daily driving range and compact design.
Nissan says: "With the installation of the Ao-Solar Extender, the development team hopes that users can further reduce reliance on charging infrastructure.
"Analysis of driving data from Sakura owners shows that many primarily travel short distances for errands and school runs, suggesting that solar-generated power could nearly eliminate the need for grid-based charging for a significant portion of owners. Moreover, the solar system can serve as an emergency power source during disasters."
This approach to integrating photovoltaic technology directly into vehicles could represent a meaningful step towards distributed renewable energy systems in transportation, where clean energy generation occurs at the point of consumption rather than requiring transmission through centralised infrastructure.
