CORE is leading the Roaring Fork Valley to a carbon-free, net-zero energy future.


energy efficiency and renewable energy projects


funding for innovative and impactful projects 

34,740 MTe

carbon emissions eliminated by CORE-supported projects

Cut Carbon with CORE

Contact CORE’s Energy Concierge with any program questions!

970.925.9775 x1003

Tim Johns

Energy Assessments

It’s the first step in all of CORE’s programs and gives you access to all of the services.

Energy Assessments

Climate Action Series

Learn from leading experts about projects and partnerships that are fueling a movement toward a more sustainable future. Join us for one, two, or all three of these summer events. All events are free and open to the public. 

Climate Action Series

Building IQ

The one-stop-shop for the City of Aspen’s building benchmarking program – learn more about Building IQ, enroll in the program and get personalized support at every step.

Building IQ

CORE Contributors

CORE is a 501(c)(3) nonprofit dedicated to leading the Roaring Fork Valley to a carbon-free, net zero energy future.