Energy Efficiency Strategies for Public Buildings: A Complete Guide
July 30, 2026
Key Takeaways:
- Benchmark your building’s energy performance using ENERGY STAR Portfolio Manager to identify opportunities for improvement.
- Reduce energy waste through a combination of low-cost operational changes and strategic facility upgrades.
- Improve more than utility costs by enhancing occupant comfort, extending equipment life, and supporting sustainability goals.
- Take advantage of available funding such as incentives, rebates, and Energy Savings Performance Contracts (ESPCs) to help finance energy improvements.
Understanding Your Building’s Energy Efficiency Baselines
Did you know that organizations can calculate a building efficiency score? This can be calculated through ENERGY STAR, a government-established program to reduce greenhouse gas emissions and other pollutants from inefficient energy use.
The ENERGY STAR score is a measure of how well a building performs relative to similar buildings when normalized for climate and operational characteristics. The score is based on a scale of 1 to 100, with 1 representing the worst-performing buildings and 100 representing the best-performing, eco-friendly buildings.
Scores of 50 indicate that the building is performing at the industry average, while scores of 75 or higher may qualify the building for an ENERGY STAR label for its high performance.
How to Determine a Building’s Energy Star Score
To determine your building’s energy efficiency score, owners can utilize the EPA’s ENERGY STAR Portfolio Manager. It allows organizations to input their utility data to measure and track their building’s energy and water consumption. It will also take into account the building’s greenhouse gas emissions. The tool can be utilized for any building, anywhere. It even helps benchmark performance against your whole portfolio of buildings.
Once the energy efficiency score has been established, you will have data that helps you determine which areas need improvement. Comparing a facility’s power consumption rates and costs to the national average will indicate whether your K-12 school, higher education campus, or municipal building is reaching its full energy-efficiency potential.
Energy Conservation Strategies for Public Owners
The average commercial building wastes 30% of the energy it consumes. Much of that waste can be reduced through better building operations and strategic facility improvements. While some energy-saving measures require capital investment, many organizations can lower utility costs by making simple operational changes.
Low-Cost Ways to Reduce Energy Consumption
Many energy-saving strategies can be implemented with little to no upfront investment.
- Educate building occupants: Help employees understand how their daily behaviors affect energy use by encouraging practices like turning off lights, powering down equipment, and reporting maintenance issues.
- Perform routine maintenance: Regularly inspect and maintain HVAC equipment, lighting, controls, and other building systems to keep them operating efficiently.
- Optimize lighting: Maximize natural daylight when possible, turn off lights in unoccupied spaces, and eliminate unnecessary lighting.
- Manage plug loads: Enable power management settings on computers and office equipment, use smart power strips, and shut down electronics when they are not in use.
- Improve HVAC operation: Adjust temperature setpoints seasonally, replace air filters regularly, seal air leaks around doors and windows, and use shades or blinds to reduce unwanted heat gain.
Long-Term Energy Efficiency Improvements
For organizations seeking greater energy savings, larger facility improvements can significantly reduce operating costs and enhance building performance.
- Conduct facility studies to identify inefficiencies and prioritize the highest-impact improvements for each building on your campus.
- Upgrade HVAC systems with modern, high-efficiency equipment and building controls.
- Retrofit lighting with LED fixtures, occupancy sensors, and daylight harvesting controls.
- Replace outdated equipment with ENERGY STAR® certified products.
- Modernize building systems through building automation and controls that continuously monitor and optimize energy performance.
Benefits of Energy Efficiency Upgrades
The value of energy efficiency extends far beyond lowering utility bills. Strategic energy improvements can strengthen facility performance, improve occupant experiences, and support long-term operational and financial goals.
Lower Energy and Operating Costs
Energy-efficient measures such as lighting, HVAC systems, building controls, and other upgrades can reduce energy costs by up to 30% in existing facilities. Lower utility bills free up funding for education, infrastructure, public services, and other organizational priorities.
Improve Occupant Comfort and Productivity
Efficient buildings provide better indoor air quality, more consistent temperatures, improved lighting, and quieter mechanical systems. These improvements create healthier, more comfortable environments for students, employees, and visitors.
Reduce Environmental Impact
Using less energy reduces greenhouse gas emissions and lowers dependence on fossil fuels, helping organizations meet sustainability goals while minimizing their environmental footprint.
Extend the Life of Building Systems
Well-maintained, energy-efficient equipment operates more effectively and experiences less wear, helping organizations reduce unexpected repairs and extend the lifespan of critical building systems.
Improve Operational Visibility
Building automation systems, advanced metering, and utility benchmarking provide real-time data that helps facility managers identify inefficiencies, monitor performance, and make informed operational decisions.
Support Educational and Community Engagement
Schools can use energy projects as hands-on learning opportunities for students studying sustainability, engineering, and environmental science. Municipalities can demonstrate leadership by investing in visible sustainability initiatives that benefit the community.
Access Funding Opportunities
Many public organizations qualify for grants, rebates, utility incentives, financing programs, and other funding opportunities that can offset the costs of energy-efficiency improvements.
Common Energy Efficiency Solutions
Organizations can improve energy performance through a combination of operational improvements and facility upgrades.
- Behavior-based energy programs that encourage occupants to reduce unnecessary energy use.
- Energy Savings Performance Contracts (ESPCs) that fund facility improvements through guaranteed energy savings. Learn how performance contracting works in your state.
- High-efficiency HVAC, lighting, and building automation upgrades that reduce long-term operating costs.
- Renewable energy systems, such as solar, that help offset utility expenses and improve energy resilience.
- Advanced Metering Infrastructure (AMI) that provides accurate, real-time utility data and helps identify leaks or unusual consumption.
- Smart building and smart city technologies, including networked lighting, electric vehicle charging, and connected building systems that improve operational efficiency.
Start Saving Now
Every public facility has opportunities to improve its energy performance. By understanding how energy is used, benchmarking existing buildings, and prioritizing the right improvements, organizations can reduce operating costs while creating more sustainable spaces. Whether the goal is to lower utility expenses, modernize aging infrastructure, or plan for long-term resilience, a strategic approach to energy efficiency helps ensure that every investment delivers lasting value.
If you’re ready to explore how to save energy at your facility, get in touch below!
