The new retrofit solution ZF SolarBoost supplies clean, reliable power to 24V battery systems of medium to large city buses and coaches, helping bus operators cut fuel costs, extend battery life, and boost operational efficiency.

The easy-to-install solar panels generate electricity during vehicle operation and continuously charge the battery.

ZF SolarBoost provides bus fleet operators with an intelligent solution to reduce fuel and battery-related costs while improving sustainability. Specifically developed for buses, ZF SolarBoost delivers measurable operational benefits. It increases vehicle uptime by reducing the need for battery recharging and minimizing maintenance requirements. The longer battery lifespan further helps lower maintenance costs: according to experience gained from everyday use by bus operators, it is possible to save the equivalent of one onboard battery per vehicle each year.

By generating renewable energy during vehicle operation, bus operators actively contribute to climate protection, as onboard systems no longer rely solely on the vehicle’s electrical supply. Furthermore, thanks to the additional energy source for charging the battery, the load on the engine is reduced – which, depending on operating conditions and weather, can lower fuel consumption by up to 3.5 percent.

Another key benefit is the plug-and-play which generally requires no drilling or rewiring and therefore enables quick, scalable implementation across entire fleets with minimal downtime. Installation in the operator’s own workshop can be carried out by using standard tools, supported by a ZF video tutorial. In addition, the system connects to the operator via Bluetooth, allowing real-time monitoring through an app.

The robust and fully flexible design withstands vibration and weather exposure, ensuring a longer service life than many comparable products. A five-year warranty and the availability of repair kits provide additional peace of mind for users.

ZF SolarBoost underlines ZF’s strategic commitment to sustainability and innovation. The system represents a scalable, future‑ready solution designed to make bus fleets more efficient and environmentally friendly. By combining easy installation, durable flexible panels, and measurable operational benefits, ZF SolarBoost provides bus operators with a practical way to reduce costs, increase uptime, and support climate‑friendly mobility.