Skip to main content


Photo of a man standing near an electric vehicle charging station beside a car.

NREL's alternative fuel infrastructure includes compressed natural gas, ethanol 85, and electric vehicle charging stations.

NREL's highly replicable transportation infrastructure and programs are designed to significantly reduce petroleum use campus-wide through a number of programs, including increased staff use of alternative transportation, telecommuting, alternative fuel vehicles, and onsite shuttles and preferred parking.

Petroleum Reduction

To reduce the amount of petroleum used throughout the campus, NREL focuses on four main aspects:

  • Fleet reduction
  • Increased alternative fuel consumption
  • Alternative transportation options for staff
  • Telecommuting and alternative work schedules for staff

Fleet Reduction and Alternative Fuel Vehicles

NREL makes every effort to right-size its vehicle fleet, which currently consists of 43 vehicles. 62% of NREL's fleet is made up of Alternative Fuel Vehicles, including those fueled by E-85 fuel (85% ethanol) and hybrid vehicles.

Alternative Transportation

NREL encourages staff to use alternative transportation when commuting to work and moving between facilities during the day by providing:

  • Free access to the Regional Transportation District's (RTD) public transportation with Ecopasses, which include unlimited regional, local, light rail, and SkyRide service to and from the Denver International Airport for NREL employees.
  • RTD bus stops conveniently located near NREL's South Table Mountain Campus
  • Vanpool vouchers that cover part of employee costs
  • A rideshare matching service
  • Incentive parking spaces for high-occupancy and green vehicles
  • Electric vehicle charging stations in the parking garage
  • Conveniently located bicycle racks, lockers, and repair stations
  • Campus infrastructure that prioritizes pedestrian and bicycle travel over motorized vehicles.

Telecommuting and Alternative Work Schedules

Staff can participate in both NREL's telecommuting and alternative work schedule (AWS) programs. These programs reduce the number of days that staff members commute to the lab. Approximately 27% of NREL staff telecommutes at least one day per week, and approximately 35% of NREL staff work an AWS.


Teleconferencing and videoconferencing capabilities are available to all staff, reducing the need to travel to attend meetings. This not only reduces the number of cars on the road, but also reduces the number of airline tickets purchased.

Parking and Shuttles

Convenient parking is provided for high-occupancy vehicles such as carpools and vanpools at NREL's new parking garage and near other NREL buildings where feasible. The parking garage also reserves 90 preferred spaces for low-emitting and fuel-efficient vehicles.

In addition to parking, alternative-fuel shuttles transport staff to and from bus stops and local RTD hubs. Shuttles also transport staff to facilities located within the South Table Mountain campus and leased facilities at the Denver West Office Park reducing the amount of single occupant vehicles trips throughout the day.