Solar-powered cars date back 70 years. Tesla’s new ‘Charge on Solar’ shows the idea in a new light
- Miquéla Thornton
- Jul 21, 2023
- 3 min read
It all started with the Sunmobile: the world’s first solar-powered car, which debuted at the end of the summer of 1955 at the Chicago General Motors Powerama auto show. It didn’t exactly take the world by storm, however, because it was only a futuristic model vehicle; a 15-inch long mini-Corvette with just enough solar power garnered through the hood’s 8 photoelectric cells to roll across the stage.
In 1987 — long before the stakes of climate change and the need for a clean energy transition were mainstream — GM showed the world that a solar-powered vehicle wasn’t merely a pipedream. It raced the Sunraycer at the very first World Solar Challenge. The full-sized solar-powered space age-designed speedster not only competed in the 1,950-mile challenge across the Australian terrain but won.
As the National Museum of American History puts it, “Solar vehicles did not enter widespread use, but the GM Sunraycer laid the theoretical and practical foundations that made modern electric and hybrid gasoline-electric vehicles feasible for everyday transportation.”
Still, taking after the Sunraycer’s design, automakers from Toyota to Tesla have toyed with the idea of solar roofs, whether it be with UFO-like racers like the Sunraycer, more modern EVs like the solar-hybrid Prius Prime, or with cars that look like they belong on the animated set of the Jetson’s like Tesla’s Cypertruck.
However, as EVs enter a new age, escaping their niche past, solar vehicles could be a norm on the road. But instead of with large plate-like solar cells secured to the hood like the Sunmobile or PV-paneled roofs, these cars could be charged on sunlight, much like the way a battery-electric vehicle is charged.
This week, Tesla officially launched ‘Charge on Solar’ a feature for newer Teslas that enables them to be charged with home’s excess solar, via the company’s Tesla solar system. Initially named ‘Drive on Sunshine’ when the feature was announced in May, the feature works for Tesla drivers with both home solar and a Powerwall charger.
While Tesla is not new to the idea of solar-powered charging, and powering an EV via a home’s solar arrays is not new, the feature gives Tesla owners a degree of control when doing so like allocating any excess solar power for vehicle charging during a storm or severe weather, setting charge limits, or enabling charging even when the Powerwall is off the grid.
Not to mention, it could help encourage the electrification of homes for existing Tesla owners.
Tesla isn’t the only automaker showing the potential of solar-powered cars, with startups niche like Lightyear, Sono Motors, and Aptera, and student-led teams at the annual Solar Car Challenge all taking the idea a bit more literally.
Plus, they might be giving popular EV-makers like Tesla a run for their money, as some can reportedly drive for months without charging. But automakers, big and small, aren’t giving up on the idea of a mass-market (literally) solar-powered car.
Like the ‘50s style Sunmobile, in 2024, Kia will be debuting the EV9, a hybrid that will be partially powered by a solar panel built into the hood and by the end of 2025, the Dutch automaker Lightyear will begin production of its four-door battery-electric fastback with both a plug and solar panels. Its sticker price is promised to be under $43,000.
For now, however, the closest most EV owners can get to a solar-powered car is by charging with excess power garnered by their rooftop solar panels. However, that may not always be the case.
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It’s fascinating to see how ideas from decades ago are being reimagined today. Solar-powered cars once seemed like a futuristic dream, but Tesla’s Charge on Solar is turning that vision into something practical. As we move toward sustainable mobility, solutions like these reduce dependence on fossil fuels and encourage greener habits. Of course, every innovation comes with new challenges, but they highlight how far technology has come in shaping the future of transport. And while we look to clean energy for tomorrow, drivers still face everyday issues like misfuelling. That’s where petrolindieseluk.co.uk, offering petrol in a diesel car service and access to Wrong Fuel Drain Specialists, ensures motorists get back on track today while waiting for tomorrow’s innovations.
The history of solar‑powered cars was a fun read, but it also reminded me that most of us are still commuting in gas hybrids and aging sedans. Keeping those cars roadworthy is the bridge to any cleaner future. That’s where parts ordering comes in—price is one thing, but accuracy and returns are the real test. I’ve browsed rockauto reviews to get a feel for how often pick‑lists go wrong, how cores are handled, and whether refunds are painless. Cross‑checking part numbers with VIN lookup and saving unboxing photos has saved me from arguing later. It’s the unglamorous side of transport that keeps people rolling until new tech becomes mainstream.
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Solar-powered cars are revolutionizing transportation by using clean, renewable energy from the sun. These vehicles reduce reliance on fossil fuels and lower carbon emissions, promoting environmental sustainability. While solar cars are still emerging in mainstream markets, advancements in technology are making them more efficient and affordable. For traditional vehicles facing emissions issues, solutions like the DPF Fixer help maintain diesel particulate filters. Together, innovations in solar power and maintenance tools like the DPF Fixer are paving the way for a cleaner, eco-friendly driving experience.