Guide
Commercial Energy Audits in Colorado
An energy check looks at how your building uses and wastes energy. Some Colorado utilities pay part of its cost. Some rebate programs ask for one before you apply.
The three types of energy checks
Energy checks come in three levels. A higher level gives you more tests and more detail.
- Level 1 — a walk-through. A quick look at lights, heating, cooling, and controls, with a short list of ideas.
- Level 2 — the common choice. A review of bills and equipment, with cost and savings estimates.
- Level 3 — a deep study with more tests. It is used for large projects.
What happens during the visit
An energy expert walks through the building, counts and takes photos of equipment, checks run hours and controls, and asks how each space is used.
- Lighting: fixture types, counts, watts, hours on, and switch or sensor setup.
- Heating and cooling: age, type, condition, settings, and repair history.
- Building shell and water heating, when they matter for your building.
- Bills: 12 to 24 months of electric and gas use to find patterns.
How energy checks connect to rebates
Utilities often use the energy check as step one. The report gives you the light counts and run hours that rebate forms ask for. Some programs pay part of the cost for business customers.
How to prepare
A little prep makes the report much more useful.
- Pull your last full year of utility bills.
- Write down operating hours by area, including cleaning crews.
- List equipment you already plan to replace.
- Note any comfort complaints or spaces that never get used.
Common questions
Questions people ask
Do I need an energy check to get a rebate?
Not always. Many lighting rebates only need light counts and product details. Larger or custom jobs may need a study.
How long does an energy check take?
A walk-through can take a few hours. A Level 2 check on a mid-size building often takes one day at the site, plus time to write the report.
Who pays for it?
That depends on your utility and program. Check the official program page for your utility before you schedule anything.
Next steps
Use the free tools
This guide is general information, not advice for one building. Confirm current rules with your utility.
Information last reviewed September 1, 2026.