Since 2010, e3 Power has been providing energy efficiency auditing and commercial building services to builders, architects, construction companies, commercial building owners, homeowners, and more throughout Denver and the surrounding areas of Colorado, with some services offered nationwide.

As a truly independent energy audit company, we don’t use audits as a way to upsell you on unnecessary insulation or other home performance work: Anything that we recommend to you, you know you need. 

What sets e3 Power apart is our building science expertise — not only do the members of our team have an extensive list of certifications and training, but we have over 10 years of experience, including:

  • 1,500+ energy audits

  • 2,000+ Manual J/D/S reports

  • 5,000+ blower door tests

  • 500+ duct blast tests

Meet the Team at e3 Power

Andy Wildenberg

Andy Wildenberg of E3Power

BPI Building Analyst

RESNET Hers Rater

PHIUS+ Rater

Certified Level II Thermographer

Energy Star Home Certified Rater

Home Energy Score Certified



Manual J, D, & S Designer

Drone Pilot FAA Part 107

sUAS Certified Thermographer

Office: (720) 704-1578

Cell: (303) 520-5152


Andy Wildenberg graduated from the University of Denver with a degree in Real Estate and Construction Management and has been involved in property ownership and management for over 40 years and energy efficiency for over 10 years. Andy specializes in building sciences and energy conservation including energy auditing, manual J/D/S calculations, REScheck and COMcheck compliance, air and duct leakage testing, and insulation inspection. Andy is also our resident drone pilot and operator.

As founding partner of e3 Power, Andy believes in the axiom "Use what you need, not what you can". His finance and property management background leads to sound decision making based on return on investment. All income property is valued on Net Operating Income (NOI). Any savings that can be attained through energy efficiency investments increases the value of the investment. Whether you increase the rent or decrease the expenses, the outcome is the same: the value of the asset increases.

Jeremy Bryan

Jeremy Bryan of E3Power

BPI Building Analyst

Home Energy Score Certified

Cell: (303) 668-7295


Jeremy Bryan has over 20 years of combined experience in home improvement, renovations, insulation installation, general electric, and home repairs. He specializes in building sciences and energy conservation including energy auditing, air and duct leakage testing, insulation inspections, and infrared imaging.

Jeremy’s goal and job as an Energy Auditor is to educate people, show them ways to make their homes more energy-efficient and comfortable, help them save money, help them reduce their carbon footprint, and make their homes safer.

Jessica W. Kurela

BPI Building Analyst

HES Score Certified

Office/Cell: (720) 704-1578


Jessica joined e3 Power in 2018 and is BPI Certified. She specializes in building sciences and energy conservation including energy auditing, air and duct leakage testing, and insulation inspection. Jessica is also the office manager at e3 Power. Before joining e3 Power, Jessica achieved a master's degree in psychology. This previous experience aids in her ability to understand how people's thoughts, feelings, and behaviors affect their energy consumption in order to help them create lasting change to their carbon footprint.

Areas We Serve

e3 Power provides a variety of energy efficiency services to homes and commercial buildings in the greater Denver metropolitan area and beyond, including the following Colorado cities and towns:

  • Denver

  • Boulder

  • Pine

  • Eagle

  • Kiowa

  • Lafayette

  • Loveland

  • Erie

  • Johnstown

  • Arvada

  • Divide

  • Centennial

  • Conifer

  • Lakewood

  • Castle Rock

  • Parker

  • Frederick

  • Colorado Springs

  • Monument

  • Greenwood Village

  • Larkspur

  • Peyton

  • Woodland Park

  • Castle Pines

  • Elizabeth

  • Fountain

  • Wellington

  • Edgewater

  • Greenwood Village

  • Evergreen

  • Parker

  • Golden

  • Littleton

  • Wheat Ridge

  • Thornton

  • Commerce City

  • Broomfield

  • Franktown

  • Dacono

  • Westminster

  • Highlands Ranch

  • Aurora

  • Morrison

  • Englewood

  • Berthoud

  • Lyons

And our consulting work extends far outside Colorado’s state lines—we’ve done Manual J/D/S calculations for companies across the country, from Nevada to New York, and many states in between.

Even if you don’t see your Colorado town or city listed above, there’s a good chance e3 Power can help. Call (303) 292-1233 or contact us today and tell us more.

Contact us

Schedule Service



  • Andy, Thank you, I knew the energy audit would be worth the cost when we first talked. I did not realize how much you did and everything that was checked. Your detailed report was easy to understand, I had never considered several of your comments about leakage and energy loss expense. Thank you... Read More

    Peter Aurora, CO

Sign up for our email newsletter

Want to keep up on our latest promotions and industry news? Click the button below to sign up for our email newsletter.

Sign up