Since hydrogen fuel cell systems are a comparatively new technology, their developmental and upfront installation costs have tended to be higher than traditional fossil fuel internal combustion engines (ICEs) and even many battery electric trucks (BETs). However, that’s no longer true in every case and the day-to-day operating costs of hydrogen fuel cell systems are often lower than both ICEs and full battery electric power and propulsion systems – especially in heavy duty work trucks and municipal buses. Just as important is that hydrogen fuel costs for operators have already been low, especially given how much more efficient it is compared to diesel or natural gas systems. This should only improve as more hydrogen fueling stations become available in key markets. So, while accurate price estimates for hydrogen fuel cells and their electrical propulsion systems will vary, they are now comparable to traditional systems and their cost continues to fall.