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How to Reduce Energy Costs in Your Office

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Running a business means keeping a close eye on costs. Energy use is one area many owners overlook. This guide is for small business owners, office managers, and anyone who wants practical ways to cut energy waste and lower monthly utility bills. You can save real money by reducing the energy your office wastes, especially in areas where waste goes unnoticed.

For Example:

Say you own a warehouse that operates seven days a week. Instead of running the lighting at full power during slow periods, you can switch to energy-efficient lighting.

Many lighting systems on the market today will dim or turn off when there’s no movement for a set period, then turn back on when movement is sensed. You can use this same setup in your office. It’s a simple way to save energy, and it can save real money over time.

Let’s go over some of the other areas worth looking into.

Simple Energy Saving Steps:

There are a few simple steps you can take to reduce your energy cost. Sometimes the steps are so basic that they get taken for granted.

Turn off lights when they’re not in use. Switch off any unit that draws power when it’s not running or scheduled to run.

Air Drafts:

There are many areas you may not have considered that let air drafts in. Electrical outlets, for example, can let air flow through them. Many small drafts in your office can add up and force your system to use more energy to heat and cool the building.

Using plastic covers made for electrical outlets that don’t have anything plugged into them, plus insulated foam placed behind each cover, can reduce the draft flowing through the outlet.

Windows, doors, and moldings are other common areas where drafts flow through. Silicone, door sweeps, and weather stripping can seal these gaps and make a real difference.

Perform a Professional Energy Audit:

An energy audit will reveal many of the issues already discussed here, plus give you a clear list of where to focus for the biggest energy savings.

Two specific programs are worth knowing about. Section 179D of the federal tax code lets commercial building owners deduct part of the cost of qualifying energy-efficient upgrades to lighting, HVAC, hot water systems, and building envelope work. For taxable years beginning in 2026, the deduction runs roughly $0.59 to $1.19 per square foot, or up to about $5.94 per square foot if the project meets prevailing wage and apprenticeship requirements. This deduction is set to end for construction that begins after June 30, 2026, so timing matters if you’re considering it.

If your business is in a rural area, the USDA’s Rural Energy for America Program (REAP) funds energy audits and renewable energy projects for eligible small businesses and agricultural producers, through both grants and guaranteed loans. Funding rules for this program can shift from year to year, so check current eligibility and availability with your local USDA Rural Development office before applying.

A tax professional can tell you which of these — or other local and utility programs — apply to your specific situation. Beyond the savings, cutting your energy waste also reduces your business’s carbon footprint. Companies and consultants that handle energy audits will have the latest information for your area.

Buy Energy-Efficient Devices:

Replacing outdated equipment reduces your energy usage and your monthly costs. Some individual pieces of equipment may only save a little, but when you replace several at once, the combined savings can add up. A major replacement, like your heating and cooling units, will show the biggest difference simply because they use so much energy.

Some of the equipment you can look into include:

  • Coffee makers
  • Refrigerator
  • Water coolers
  • Air conditioner
  • Water heater
  • Furnace
  • Computers
  • Monitors
  • Printers
  • TV displays
  • Lighting systems

Use Energy-Saving Features on All Applicable Devices:

Many of today’s devices and appliances come with built-in energy-saving options. A device running in this mode may perform at slightly less than full power, but it’s usually still good enough for the job. Review the equipment you already have and decide where these settings make sense.

Use Natural Light:

If you have the option, natural light can cut your energy costs. Open blinds more often, or install skylights if that’s possible, to bring in more daylight and improve the look of your office at the same time.

You can also look into window film that lets light in while reducing heat and UV rays coming through in the summer. Glamour Glaze goes into detail on this and the options available.

Maintain AC and Heating (HVAC) Units:

Heating and cooling units draw a lot of energy. Keeping them well maintained helps them run at their best while using less power.

Here are a few things to look into:

Change filters regularly. A dirty filter cuts airflow and forces the motor to work harder, and clean filters can cut an HVAC system’s energy use by up to 15 percent, according to Department of Energy estimates.

Keep your refrigerant charge at the right level. Too much or too little makes your AC unit work harder without running any more efficiently.

Clean all heat exchange units. A heat exchanger needs sufficient, unrestricted airflow to work well.

Repair leaks in your air ducts and insulate exposed sections. Sealing and insulating ducts can improve heating and cooling efficiency by as much as 20 percent, according to ENERGY STAR.

Use Technology To Reduce Energy Usage:

Smart thermostats reduce usage during off-hours and increase it during peak hours, and many can be controlled from your phone.

Lighting is another good place to apply this. In addition to motion sensors, switching to LED lighting is worth serious consideration: LEDs use up to 90 percent less energy than traditional bulbs, according to ENERGY STAR, and lighting alone makes up about 17 percent of all electricity used in U.S. commercial buildings. LEDs also last far longer than conventional bulbs, which cuts your replacement costs too.

Renewable Energy:

Renewable energy is worth a look, particularly solar power. Businesses that begin a qualifying project in 2026 can claim the federal commercial Investment Tax Credit, which covers 30 percent of the total cost — equipment and labor included — for systems of 1 megawatt or less. This credit comes with specific construction-start deadlines, so talk to an installer or tax professional early if you’re considering it.

Wind power is also becoming more common for businesses in the right location. Check with your state energy office or utility for any local incentives that might apply to your project, since these vary widely by location.

How to Get Employees to Save Energy:

As a business owner, you may already track how much energy your business uses. But even if you’re energy conscious, if your employees aren’t on board, you’ll still have wasted energy — which is bad for the environment and costs you money.

The resources below offer tips on getting your employees involved in saving energy.

Minnesota Chamber of Commerce — Energy Smart Program for Businesses

Constellation — 5 Employee Engagement Ideas for the Office

Key Points and Facts About Reducing Office Energy Costs

  • LED lighting uses up to 90% less energy than traditional bulbs, and lighting makes up about 17% of commercial building electricity use.
  • Clean HVAC filters can cut energy use by up to 15%. Sealed, insulated ducts can improve HVAC efficiency by up to 20%.
  • Section 179D offers a federal tax deduction for qualifying energy-efficient commercial building upgrades, but it ends for construction starting after June 30, 2026.
  • The federal commercial solar Investment Tax Credit covers 30% of qualifying 2026 solar project costs.
  • The USDA’s REAP program funds energy audits and renewable energy projects for eligible rural small businesses.
  • Small drafts around outlets, windows, and doors add up and increase heating and cooling costs.

Action Steps for Reducing Office Energy Costs

Start With Low-Cost Fixes

  • Turn off lights and power down unused equipment.
  • Seal outlet covers and weatherstrip doors and windows.
  • Open blinds to use natural light where possible.

Upgrade Your Equipment

  • Replace outdated lighting with LEDs.
  • Replace or upgrade aging HVAC, refrigeration, or office equipment.
  • Install a smart thermostat.

Look Into Incentives

  • Ask a tax professional whether Section 179D applies to your building before the June 30, 2026 construction-start deadline.
  • Check REAP eligibility if your business is in a rural area.
  • Research the commercial solar Investment Tax Credit if you’re considering solar.

Engage Your Team

  • Make energy savings part of someone’s job, not just a suggestion.
  • Share simple, specific tips with staff rather than general reminders.

Checklist for Reducing Office Energy Costs

  1. Do a walkthrough audit.
    • Check outlets, windows, and doors for drafts.
    • Note which equipment runs constantly, even when not needed.
  2. Fix the easy stuff first.
    • Seal outlets and drafts.
    • Set devices to energy-saving mode where available.
  3. Plan your upgrades.
    • Get quotes on LED lighting and HVAC maintenance.
    • Ask about a professional energy audit.
  4. Check your incentives.
    • Confirm 179D and REAP eligibility with a tax professional or USDA office.
    • Look into the commercial solar tax credit if relevant.
  5. Bring your team in.
    • Assign energy tracking to someone specific.
    • Share the savings results so staff can see the impact.

FAQ: Reducing Office Energy Costs

What’s the fastest way to start saving on office energy costs?

  • Start with no-cost or low-cost fixes: turning off unused equipment, sealing drafts, and using natural light. These require no investment and start saving money immediately.

Is a professional energy audit worth the cost?

  • For larger or older buildings, it often is. An audit gives you a specific, prioritized list of where you’re losing the most energy, so you can put your money where it matters most.

Are there tax incentives for energy-efficient upgrades?

  • Yes. Section 179D offers a per-square-foot deduction for qualifying commercial building upgrades, though it’s scheduled to end for construction starting after June 30, 2026. A commercial solar tax credit is also available for qualifying 2026 solar projects. A tax professional can confirm what applies to your business.

How do I get employees on board with saving energy?

  • Make it specific and visible. Assign someone to track usage, share results, and set clear, simple actions rather than general reminders.

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