Sono Group N.V. gained new customers in Scania, a subsidiary of Volkswagen, and LLT, a Swedish public transport authority, in a unique project to test the Solar Bus Kit in real-life conditions in the northern hemisphere. The objective of the project is to optimize the efficiency of the solar technology for buses in northern climates. LLT is the first transport authority in Scandinavia to equip buses with a customized version of the Solar Bus Kit with 1 kW peak installation, and have equipped six Scania model Citywide K320 diesel buses.

These solar-equipped buses are used for public transport in Luleå, Sweden and are intended to help reduce transport emissions. For each year of operation, the solar technology developed by Sono Motors has the potential to save approx. 2.9 tonnes of CO2 and up to 1,100 liters of diesel per bus.

According to LLT and Scania, solar technology could be an option in the future to increase the range of electric buses. Scania, a subsidiary of the Volkswagen group, is a provider of transport solutions, including trucks and buses for heavy transport applications. In 2021, the Swedish company sold and delivered over 85,000 trucks and more than 4,400 buses.

The Citywide K320 is another bus model for which Sono Motors has optimized its Solar Bus Kit, following the optimizations for the MAN Lion's City and the Mercedes-Benz Citaro.