Solar Team Twente sets a new course towards sustainable rally racing

Since 2005, successive generations of students at Solar Team Twente have worked on ultra‑lightweight solar cars, fully optimized for the nearly 3,000‑kilometre race across Australia. These efforts earned the team multiple podium finishes and a strong international reputation within the solar racing world. At the same time, the team observed that the scope for further technological innovation was becoming increasingly limited.

“The World Solar Challenge has brought us an enormous amount, but the technical room to take real new steps kept getting smaller,” says team leader Daniël Blik. “Over the years, the designs have become highly focused on one specific competition. We want to pioneer again and develop technology that is more broadly applicable.”

Focus on extreme conditions

With the move to rally racing, the technical focus is shifting as well. While solar car races mainly revolve around maximum efficiency on asphalt, rally‑raid competitions demand performance under extreme conditions. Sand dunes, rocky terrain and large temperature differences place high demands on vehicles and systems. This results in new challenges in the areas of energy management, cooling, materials and data analysis.

According to Solar Team Twente, these conditions better align with current challenges related to sustainable mobility and electrification. In rally events, daily stages of hundreds of kilometres are completed in harsh terrain. The Twente‑based team aims to become the first student team to develop a fully solar‑powered rally car.

“We remain Solar Team Twente: the sun remains our energy source,” says Blik. “But it is precisely in rallies that we can show that sustainable technology also works outside ideal conditions. That makes the impact greater.”

Stronger connection with industry and society

Internal evaluations and discussions with partners and students show that rally technology has more overlap with real‑world applications. The components used are less niche than those in traditional solar cars, allowing innovations to flow more quickly into industry and the mobility sector. This creates more opportunities for collaboration with businesses and increases the project’s societal relevance.

The new direction also gives a boost to student participation. Solar Team Twente has long been known as a learning environment for technical talent. Students gain experience working on complex engineering projects under high time pressure, preparing them for careers at international high‑tech companies and startups.

“Students want to build technology that has visible impact,” says Blik. “With rallies, we can once again push boundaries. Not only technically, but also in how we work with partners and how we make sustainable innovation visible.”

First goal: Rally du Maroc

The Rally du Maroc is the first major milestone in the new strategy. This rally takes place annually in October and consists of multiple stages through desert‑like terrain. The event attracts teams from around the world and reaches a global audience of millions through international media coverage.

In the coming years, Solar Team Twente will focus on gaining experience and further developing the solar rally car. In the initial phase, the emphasis will be on reliably completing stages using solar energy. In the longer term, the goal is to compete competitively in the overall standings.

“We have shown that it is possible to reach the world top with solar cars,” says Blik. “Now we want to show once again what Twente stands for: the courage to innovate.”