A team of energy professionals united by our passions for efficient living, cutting carbon, helping solve the climate crisis, and helping others. Oh, and we love getting outside and playing in the mountain environment we’re working with you to protect.


On her way to California in the late 70’s, Trish Chew landed in Aspen for “one season only.”  The 12” rule was in effect, with the weather pattern of bluebird days, champagne powder, and snow at night.  Realizing the ski bum lifestyle would not be sustainable for the long term, she put her degree in business administration to work for Reese Henry & Co.  Trish started her own accounting business and continued to work closely with the CPA firm. Initially with for profit firms, she shifted her emphasis to the non-profit sector.  Trish enjoyed helping the non-profits achieve their goals and volunteering for their events. With CORE since 2014, she was thrilled to be offered a full-time accountant position.  Working with the best committed staff ever, Trish aims to assist CORE continue to effect positive changes.


970.925.9775, ext. 508

Katie strongly believes in CORE’s values and utilizes her diverse skillset to support CORE in achieving its goals. Katie grew up across coastal California, eventually making her way north to the Coastal Redwoods. There she earned a B.S Degree in Natural Resources with a specialized focus on Interpretation, and minors in Spanish and Studio Art. Throughout college Katie started traveling across Latin America volunteering with various environmentally focused groups, painting murals, and studying Spanish.

Following graduation, Katie was a National Park Interpretation Ranger in Alaska and Southwestern Colorado. She has also worked with outdoor recreation, environmental education/outreach, and served as an AmeriCorps Watershed Field Technician. The local environment and community of the Roaring Fork Valley inspired her move to Carbondale in 2016.  In her spare time, you’ll find Katie enjoying the outdoors by mountain biking, paddle boarding, hiking, camping, snowboarding, and gardening. Along with a respect for nature, Katie is passionate about the creative forces. Katie embodies a love of the arts, and life, through photography, painting, writing, and music.  She also likes to jump out of airplanes.


970.925.9775, ext. 501

As the Community Sustainability Manager at CORE, Sarah is committed to helping the Roaring Fork Valley communities meet and expand their climate goals. To do so, she provides the resources, as well as the inspiration, to save energy. She most recently served as CORE’s Energy Programs Specialist, managing residential rebates and supporting outreach initiatives.

Sarah moved to Aspen in 2012 to work as a Summer Naturalist for the Aspen Center for Environmental Studies. Prior to making the move to Aspen, Sarah received a degree in Geography from the University of Washington and worked for outdoor recreation and conservation organizations.

Having spent time in Washington, Sarah cannot soak up enough of the Colorado sunshine. In her free time, you can find her adventuring in the mountains, or sun bathing with a good book.


970.925.9775, ext. 502

Hannah grew up just a short bike ride from the beautiful beaches of Fort Lauderdale, Florida. She pursued her undergraduate studies at the University of Florida majoring in Sustainability and the Built Environment, graduating in May of 2014. Passionate about promoting a healthy, flourishing, sustainable community, Hannah continued her education at the University of Florida earning her Master’s degree in Urban and Regional Planning with a focus on Environmental and Food Systems Planning in the summer of 2015. Before moving to the Roaring Fork Valley, Hannah biked across the United States with an organization called Bike & Build, which engages young adults in cycling trips to benefit affordable housing. When not working at CORE, Hannah can be found exploring in the mountains, practicing yoga, or testing out recipes in the kitchen.


970.925.9775, ext. 507

Mona joined CORE as Executive Director in 2012.  As the Executive Director, Mona oversees all operations. She loves working in the Roaring Fork Valley and is passionate about continuing CORE’s work to support communities in achieving their energy efficiency, renewable energy and carbon reduction goals.

With more than 25 years professional experience in the environmental arena, Mona has worked across many sectors. She worked for five years at the Colorado Governor’s Energy Office (GEO) working with communities to develop and implement energy efficiency and renewable energy programs and projects in their communities. Prior to working with the GEO, she worked in the renewable energy sector and as Director of the Center for ReSource Conservation in Boulder.

She has a degree in Political Science from Northwestern Oklahoma State University and Masters degree from the Korbel School of International Studies, University of Denver.  In her free time she spends time traveling, exploring wine tasting and grape growing and outside enjoying nature.

970.925.9775, ext. 500

Marty is the Program Director for CORE. He manages the various CORE grant programs and supervises the remaining energy program offerings. He has been a general contractor in the Roaring Fork Valley since 2001, as the co-owner of a design-build firm specializing in sustainably built custom homes. He received his LEED Green Associate and BPI-Building Analyst certifications in 2011.

Marty’s home is in Carbondale, where he has lived on and off since 1999. He has worked for several architects, volunteered for many years on the the Carbondale Mountain Fair board, Red Hill Council and Roaring Fork Outdoor Volunteers. Some of Marty’s other interests include mountain biking, climbing, skiing, and raising his two wonderful boys Tyler and Potter, with a little help from his wonderful wife, Trina Ortega. Marty holds a Master of Architecture degree from CU Denver, and a Technical Journalism degree from CSU.


970.925.9775, ext. 504

One of Lara’s first “marketing” endeavors was designing a prize-winning poster for a utility-sponsored contest in 7th grade. Her snappy headline? “Solar Energy: Catch It and Conserve It.” Today, Lara marvels that she has come full circle by leading community engagement and marketing for CORE.

Lara’s passion is building momentum and launching movements by telling a great story. Prior to joining CORE, she was the Communications Director for Aspen Community School’s successful $9.1M campaign to transform its aging campus into a state-of-the-art facility targeting LEED Gold and the 2030 Carbon Neutral Challenge. For nearly a decade, she served as the Director of Marketing + PR for Aspen Words, where she built the organization’s marketing program from the ground up. Lara graduated with a degree in Mass Communications from UC Berkeley and has been a Roaring Fork Valley resident since 1998.

As a mother, community member, visual artist and self-proclaimed word nerd, Lara is excited to join CORE, training her communications sights on climate action, which she holds as the most pressing issue of our time. When not brainstorming ways to better connect with the community, you’ll find Lara riding her bike in the mountains with her husband and two boys, making art, or hunting down the sweetest peach at the farmer’s market.


970.925.9775, ext. 505


George Newman Chair
County Commissioner, Pitkin County

Adam Frisch Vice Chair
Council Member, City of Aspen

David Munk Treasurer
Vice Chair, Holy Cross Energy

Mona Newton Secretary
Executive Director, CORE

Tom Goode Trustee
Board Member, Town of Snowmass Village

David Hornbacher Board Member
Director, City of Aspen Public Works

Cindy Houben Board Member
Community Development, Pitkin County

Katie Schwoerer Board Member
Town of Basalt

Bill Stirling Board Member
Citizen Representative and Co-founder of CORE