Energy is one of the most significant operating costs for commercial buildings, yet it’s often one of the least optimized. Many building owners assume their systems are “good enough” as long as everything is running. In reality, inefficiencies tend to build up quietly over time through outdated equipment, poor calibration, or simply missed opportunities.
That’s where a commercial energy audit comes in. A specialized energy auditor provides a clear, structured look at how your building is actually using energy, and where improvements can be made.
A commercial building energy audit is a detailed evaluation of a building’s energy usage, designed to identify inefficiencies, reduce waste, and uncover opportunities to lower operating costs. It looks at how energy flows through systems like HVAC, lighting, and equipment, then provides actionable recommendations to improve performance.
In short, it answers a simple but critical question: Where is your building losing money through energy waste?
How does a Commercial Energy Audit Work?
An expert energy audit combines data analysis with real-world observation. It typically starts with a review of construction and utility information to establish context on the energy usage of the property. From there, an on-site walkthrough allows auditors to assess how major systems are operating day to day by interviewing building personnel.
This is often where the most valuable insights come from. Systems that appear to be functioning normally can still be running inefficiently. HVAC units may be overworking due to poor controls, lighting may be outdated or improperly scheduled, and equipment may be using more energy than necessary simply because it hasn’t been optimized.
The end result is a customized energy model that translates these findings into clear recommendations. Building owners get a prioritized set of opportunities that provide a path forward to future efficiency and cost upgrades the property owners may choose to make.
Where the Real Savings Come From
For many building owners, the biggest surprise isn’t that inefficiencies exist; it’s how much they cost. According to the U.S. Environmental Protection Agency, up to 30% of the energy used in commercial buildings is wasted. That means a meaningful portion of your operating expenses may not be delivering any value at all.
What makes a commercial energy audit especially compelling is how often it uncovers savings without requiring major capital investment. Some of the most common opportunities are relatively straightforward but frequently overlooked, such as:
- Thermostat Scheduling
- Outdoor Air Boiler and Pump Resets
- Economizer Control Setpoints
- Chiller Sequencing
- Building Envelope Air Sealing
Mechanical systems, particularly compressed air, are another common source of waste—small leaks can quietly drive up energy usage over time. In facilities with cooling or refrigeration, even minor adjustments can lead to noticeable improvements in efficiency. And in some cases, the issue isn’t consumption at all, but how energy is billed. Incorrect rate structures or service classifications can result in consistently higher utility costs than necessary.
Energy Audits as a Tax Incentive
Tax-related incentives tied to efficiency improvements can reduce overall costs in ways that aren’t always obvious upfront.. In many cases, building owners can take advantage of federal deductions—such as those available through Section 179D—which reward improvements to lighting, HVAC, and building envelope systems. In fact, IRS tax deductions can be between $0.50 and $1.00 of savings per sq. foot for a building with 25%+ energy savings.
Depending on the scope of the upgrade, these deductions can significantly offset the cost of making efficiency improvements. These types of findings shift the conversation. Instead of viewing an audit as an expense, it becomes a tool for uncovering immediate and ongoing financial returns.
High Performing Energy Systems are Cheaper and More Compliant
While cost reduction is often the primary driver, a commercial building energy audit also improves how a property performs overall. More efficient systems tend to be more reliable, easier to manage, and better at maintaining consistent comfort for tenants. That can translate into fewer complaints, lower maintenance issues, and a stronger overall experience for occupants.
There’s also a growing regulatory component to consider. In some regions, energy benchmarking and audits are no longer optional for certain types of buildings. Requirements vary by location, but transparency and efficiency are becoming standard expectations. Conducting an audit helps ensure compliance with these regulations and reduces the risk of fines or penalties, while also positioning the building more favorably in markets that increasingly value sustainability.
Even in areas without strict mandates, being proactive puts building owners ahead of the curve. As energy standards continue to evolve, having a clear understanding of your building’s performance makes it easier to adapt.
What to Know Before your Energy Audit
An energy audit involves the auditor arriving at your building property and interviewing several staff personnel familiar with the building’s operations. The auditor will scan the building personally, looking for things like HVAC issues, building envelope deficiencies, non-LED lighting, electrical equipment efficiency, and hot water controls, and take photos of the building to utilize in the energy model report. Then, the auditor will leave the property and begin assembling an energy report that covers notable concerns found on site, equipment inventories, utility bill analysis, energy use breakdowns, and energy efficiency measures explored. A typical energy audit will take between 8-9 hours.
The report process typically takes 3 – 4 weeks, and you can expect to have a complete energy report within 6 weeks.
Cascade Building Solutions as your Local Commercial Energy Auditor in Colorado
A commercial building energy audit ultimately provides clarity. It takes the ambiguity of your building’s energy use, analyzes it, and turns it into actionable insight. Instead of reacting to rising utility bills or making assumptions about where to invest as a building owner, you gain a clear picture of what’s working, what isn’t, and what to do next.
If you’re looking to better understand how your building is performing and where real savings exist, exploring a professional audit is a strong first step. Cascade Building Solutions specialized in professional commercial and industrial energy audits in Denver, Colorado and surrounding areas. We pride ourselves in giving you clarity on your energy usage and helping you make a plan to reduce overall building costs.
