There are over 3 million transit buses on the worlds roads, 97% are diesel. Each diesel bus emits over 100 tonnes of CO2 per year, on average, excluding the emissions from its original manufacture. These emissions make up a large part of transportations carbon footprint, one of the largest contributors to global warming.Buses are concentrated in areas of high population density. The resulting poor air quality is devastating the health of urbanites, particularly children, bus drivers, and the under-privileged. Governments are struggling with the resulting higher healthcare costs.Diesel engine buses are unwelcome in future planning for most municipalities. The widespread effort to create clean cities will reduce the value of used diesel buses to scrap levels. Kleanbus replaces diesel bus engines and supporting systems with a pre-engineered electric drivetrain. Our technology is based on highly efficient and sustainable motors with the majority of our components sourced locally in the U.K. The company is designs solutions for the most common makes and models of buses used in the UK, Europe, and The USA.