Adopting cleaner alternative fuels for non-electrified rail operations is complex and multifaceted. Some railway lines use diesel-powered trains. Electrifying those lines can help reduce pollution and carbon emissions, but this requires large investments in infrastructure and an expensive connection to the power grid.
This report by the Regional & Suburban Rail Committee looks at alternatives for non-electrified operations including batteries, supercapacitors, hydrogen fuel cell systems, and biodiesel. To make an informed decision, three key aspects should be considered throughout the decision-making process: policy, location, and technology. The report provides several case studies, examining these key aspects.