One of my very favorite things in the world to talk about — second perhaps only to electric postal vehicles — is electric school buses. It's difficult to think of a more righteous cause than reducing air and noise pollution in direct proximity to the country's most sensitive lungs and ears.Currently, however, electric school buses still cost two to three times what their diesel competitors cost, which can be daunting for school districts with tight budgets. Electric buses pay themselves off over time through dramatically lower fuel and maintenance costs, but the upfront costs of the transition are steep enough to scare away many administrators.My guest today runs a company called Highland Electric Fleets that is attempting to overcome that challenge by offering a new business model. Rather than purchase and maintain the buses themselves, school districts pay Highland a subscription fee, locked in for a 15-year contract, which covers the buses, a depot, charging infrastructure, scheduling, training, and ongoing maintenance and replacement of buses when required.In addition to a saving most school districts money immediately, the subscription contract derisks the transition to electric buses. That is about the best thing I can think of that someone could be doing these days, so I was eager to talk to Highland CEO Duncan McIntyre about the advantages of electric buses, the challenges school districts face, and the problems solved by the subscription model. Get full access to Volts at www.volts.wtf/subscribe