The Community Office for Resource Efficiency (CORE) is a 501c3 nonprofit that is taking action to address the climate crisis.

About CORE


Who We Are


CORE is a 501(c)(3) nonprofit accelerating the transformation to a sustainable future through action-oriented solutions to the climate crisis.

What We Do


We provide funding and technical assistance for home and business owners to be environmental stewards, reduce energy use, and make their spaces more comfortable.

Sustain - Impact - Innovate


CORE empowers you to be part of the solution to climate change. Choosing to take action makes a world of difference. We can show you how.

Our Impact


“CORE’s rebates are a bonus for thinking outside of the box. They make it easier to sell the project and it benefits the planet.”

Frank White, Snowmaking Manager, Snowmass Mountain, Aspen Skiing Company

“We see CORE as a real partner in trying to elevate the conversation on climate change with our new building.”

Ryan Honey, Executive Director, The Arts Campus at Willits

“If people are thinking of energy upgrades, CORE is a great resource. Whether you’re just getting started, halfway there, or already built, it’s a really knowledgeable team.” 

Andrew Wickes & Adriane Simon, Aspen Local Homeowners

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