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Case Studies

View featured case studies and success stories, or use the search tool to explore more alternative transportation technologies, including alternative fuels, advanced vehicles, and regulated fleets.

Two students are working on equipment in a lab at Blythewood High School to make biodiesel out of used cooking oil. Students are wearing safety glasses, masks, and gloves.

Students Whip up Biodiesel in South Carolina

Find out how students at Blythewood High School are learning to make biodiesel from used cooking oil.

A layer of geosynthetic clay liner is installed at Seneca Landfill in Pennsylvania. This liner is part of a liner system that captures methane, which is processed into renewable natural gas to fuel the company's waste collection trucks.

Renewable Natural Gas from Landfills Can Reduce Fuel Costs and Increase Independence

Vogel Holding in western Pennsylvania has turned trash into energy by capturing methane from its Seneca Landfill and processing it into renewable natural gas to fuel the company’s waste collection trucks.

Three men stand in front of a heavy-duty diesel vehicle that they are fueling with renewable diesel. Text on the vehicle reads “City of Oakland Streets & Sidewalks.”

Renewable Diesel in Oakland, California, Demonstrates Cost-Effectiveness of Drop-In-Ready Fuel

Renewable diesel is a drop-in-ready fuel that fleet managers can use to improve efficiency for little to no additional cost, which is why the city of Oakland, CA, began shifting diesel vehicles to renewable diesel in 2015.