NREL - National Renewable Energy Laboratory
Shuttle Services


NREL has several shuttles available to get you where you need to go.

STM Circulator

The STM Circulator shuttle circulates between the STM surface parking lot, parking garage, RSF, ESIF, S&TF, SERF, FTLB and back about every 5 to 7 minutes from 6:00 a.m. to 9:30 a.m. and again from 3:30 p.m. to 6:30 p.m. and about every 10 minutes midday from 9:30 a.m. to 3:30 p.m. The last trip departs

On-demand Shuttle

NREL's on-demand shuttle, which runs 8:00 a.m. to 5:00 p.m., provides transportation between buildings not on a regularly scheduled shuttle route. Call 303-275-3111 about 5 to 10 minutes before your departure to request a ride and the shuttle will arrive to pick you up as soon as possible.


If you have an emergency while waiting for or riding the NREL shuttle, call NREL Security at 303-384-6811.