We're driving energy-saving solutions in our community

Learn about how we work with community members, business owners, and local government to collectively tackle climate change head-on.

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Aspen CORE connects locals with sustainable solutions and expert energy guidance.

Energy Spotlight

Blue Lake Preschool at Stotts Mill

The new all-electric Blue Lake Preschool at Stotts Mill expands childcare access in Basalt while prioritizing sustainability. The advice and funding from CORE ensured a high-efficiency design that benefits both the community and the environment.

Blogs

A man and a woman stand outside of the home they are building in Aspen, Colorado.

Smuggler Park Couple Take the Path Towards Carbon-Free Living

June 4, 2025
Just beyond the Downtown Core lies Smuggler Park, a fabled Aspen subdivision the HOA says is made up of “real homes for real locals.” Two of those locals, Sam and Desi Barney, are using a CORE grant to drive real change when it comes to how their home uses energy.

Designing Better Buildings: Maximizing Your ROI with Energy-Saving Solutions

By Jami McMannes • May 12, 2025
In Pitkin County, buildings account for over 55% of greenhouse gas emissions. As a property owner, your building design choices significantly impact both your bottom line and our shared environment.

Federal and State Tax Programs Sweeten the Deal on Home Energy Improvements

By Jami McMannes • February 25, 2025
Tax Day is April 15, and whether you have already filed or are still pulling receipts together, it’s nice to know what tax breaks could help you save - both dollars and the planet.

Lessons in Layering

January 28, 2025
Living in the Roaring Fork Valley means adapting to an ever-changing mountain climate. Outdoor enthusiasts will tell you that the right combination of base, middle, and outer layers is the secret to staying cozy, safe, and energized in varying conditions.

Randy Udall: A Pioneer in Climate Action (1951-2013)

December 5, 2024
Randy Udall was a visionary leader in the fight against climate change. He was CORE’s first executive director, and his efforts laid the foundation for transformative energy solutions across the Roaring Fork Valley and beyond.

Inside the Building IQ Program: Cutting Emissions One Building at a Time

October 30, 2024
Success Stories from Building IQ Participants Embracing Benchmarking
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In The News

CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.
CORE supports climate action and energy efficiency in Aspen and the Roaring Fork Valley.

Weighing in on tons of methane at Coal Basin

April 17, 2024

The Sopris Sun
A man is working on a ventilation system in a basement.

Coal Basin methane leak study concludes about 400 metric tons of the gas could be mitigated.

April 9th, 2024
A man and a woman are looking at a blueprint in a house under construction.

The times are changing in Redstone’s Coal Basin

March 19th, 2024
A large iceberg is floating on top of a body of water.
A group of people are standing in a field with backpacks.
The sun is shining through the mountains in yosemite national park.

CORE to host public info meetings on Coal Basin methane emissions

March 14, 2024

The Aspen Times

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A woman is standing in a kitchen cooking on a stove.
A man is standing in front of a wooden building with a lot of air conditioners.
An aerial view of a small town surrounded by snow covered mountains.
A wooden house covered in snow with trees in the background
An aerial view of a ski resort with mountains in the background and a city in the foreground.
Decorative background image for Aspen CORE, a nonprofit focused on reducing greenhouse gas emissions through energy-efficient building solutions.
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Press Releases

Accountability & Transparency

Explore our annual impact reports, financial audits, and IRS Form 990s to see how we steward our resources and make a measurable difference in our community.

2023 Impact Report

Previous Years