The CORE Knowledge Base

There to Help: CORE’s Income-qualified Program

CORE offers free energy assessments and double rebates for income qualified residents.


Cooking Without Gas

Watch Chef Martin’s cooking demonstration on an induction stove, and learn more about why you should switch from gas to electric.

The 5 W’s of Cooling with a Heat Pump

Did you know that heat pumps are not only for heating, but for cooling too? Find out why this 2 in 1 system is the most efficient on the market.

Bigger Rebates for Basalt Residents

Up to 3X the rebates for Basalt residents! The Town of Basalt is matching CORE’s incentives for energy upgrades. You can cover up to 75% of your project costs when combined with rebates from Holy Cross Energy.

25 Reasons to Get an Energy Assessment

Interested in sustainability but not convinced? Here are 25 reasons to start your path to zero with an energy assessment.

She’s not just making vodka, she’s distilling change

Connie is the co-owner of one of the most sustainable distilleries in the country. She got there with big dreams, innnovation, cutting-edge technology, hard work, and a grant from CORE.

Old School Aspen, New School Solutions

SLEEP stands for the Small Lodge Energy Efficiency Program. The City of Aspen in partnership with CORE, give small lodges financial incentives for energy efficiency upgrades.

It’s All HERS

HERS is the Home Energy Rating System that has become the industry standard on how to measure and calculate the energy efficiency of homes

Living the Net Zero Dream

Mac interviews Ben Koons in this video about how Ben designed and built his own net zero home with the help of a CORE net zero homes grant.

Electrify Our Future

Have you ever thought about what more electricity can do for you? For the planet? As it turns out, it’s a lot more than you might expect. When it’s beneficial electrification — yes, we know, this is the kind of terminology that might make your eyes glaze over — it has the potential to move us firmly toward a cleaner, more efficient, and safer energy future.

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