A group of Dutch students built a solar-powered car, the Stella Terra, which successfully completed a challenging 1,000-kilometer journey from Morocco’s northern coast to the Sahara Desert. Notably, this vehicle didn’t require any charging stations along the way and solely relied on its highly efficient solar panels.
Traditional electric cars often struggle to undertake similar journeys through remote areas lacking EV infrastructure, but the Stella Terra doesn’t face this limitation. The custom solar panels on the Terra exceeded expectations, providing a range of at least 710 kilometers on sunny days and an estimated 660 kilometers on cloudy days when driven on paved roads. This performance was particularly remarkable since the Terra was designed as an off-road EV capable of handling diverse terrains, and its off-road range dropped to approximately 550 kilometers under favorable weather conditions.
The Terra’s efficiency stands out in the electric vehicle market, with its custom-made converter achieving an impressive 97 percent efficiency in converting sunlight into electricity, compared to the typical 15-20 percent efficiency of common solar panels and converters. In fact, the Terra’s solar system is more than twice as efficient as the best panels available.
Beyond efficiency, the students also prioritized weight reduction for their off-road EV. The Terra is remarkably lightweight, weighing only 1,200 kilograms, a significant departure from conventional EVs. This weight-saving approach allowed for a smaller and lighter battery, which is charged as the car is driven, addressing a common issue in EVs.
Despite its lightweight design, the Terra doesn’t compromise on comfort, featuring fully reclinable seats that can double as a bed for multi-day journeys. Additionally, the Terra can charge various devices like phones and cameras, showcasing its versatility and capabilities. The technology used in the Terra is considered a decade ahead of anything else currently available, making it a pioneering achievement by the Eindhoven University of Technology’s Solar Team Eindhoven.
