How to Get ENERGY STAR Certification for Commercial Buildings (2026 Guide)
ENERGY STAR certification confirms your commercial building ranks in the top 25% for energy efficiency nationwide. Here is the complete step-by-step process: what score you need, how Portfolio Manager works, what PE verification costs, and how to improve your score to qualify.
What Is ENERGY STAR Certification for Commercial Buildings?
ENERGY STAR certification is a designation awarded by the U.S. Environmental Protection Agency (EPA) to commercial buildings that achieve a score of 75 or above in ENERGY STAR Portfolio Manager. It is the most widely recognized energy efficiency certification for commercial real estate in the United States.
The certification label signals to tenants, lenders, investors, and regulators that your building performs in the top 25% of similar buildings nationwide for energy efficiency, after controlling for climate, building type, occupancy, and operating hours.
Key facts about ENERGY STAR certification:
- Created by: U.S. Environmental Protection Agency (EPA), under the ENERGY STAR program established by the Clean Air Act
- Score required: 75 or above on the 1–100 ENERGY STAR scale
- Application tool: EPA Portfolio Manager (free)
- Cost: Free from EPA — you pay a PE/RA for data verification ($500–$3,000 typically)
- Renewal: Annual — must resubmit 12 months of current data each year
- Eligible building types: 80+ space types, including offices, retail, hotels, schools, hospitals, warehouses
- ENERGY STAR-certified buildings use: 35% less energy than the national median for their building type (EPA)
ENERGY STAR certification is separate from the ENERGY STAR score itself. Any building can receive a score in Portfolio Manager — only buildings scoring 75+ and completing the verification process receive the certification label.
Eligibility: What Buildings Can Get ENERGY STAR Certified?
The 75-Point Score Threshold
The primary eligibility requirement is a score of 75 or above in Portfolio Manager. The ENERGY STAR 1–100 score is a percentile ranking:
| Score | What It Means | Certification Status |
|---|---|---|
| 1–49 | Below median — uses more energy than at least half of similar buildings | Not eligible |
| 50 | Median — average energy performance for your building type | Not eligible |
| 51–74 | Above average — better than most, but not yet in top quartile | Not eligible |
| 75–100 Certified | Top 25% nationally — performs better than 75% of comparable buildings | ✓ Eligible to apply |
A score of 75 qualifies. A score of 74 does not. If your building currently scores between 60–74, targeted improvements can often push it across the threshold within 12–18 months.
Eligible Building Types
EPA has established ENERGY STAR scoring models for 80+ space types. Major eligible categories include:
Not all building types generate a 1–100 ENERGY STAR score — some space types receive only an Energy Use Intensity (EUI) metric. Only space types with a scoring model can pursue ENERGY STAR certification. Check the current eligible types at energystar.gov/buildings.
How to Get ENERGY STAR Certified: 4-Step Process
Set Up Your Building in Portfolio Manager
Create a free account at portfoliomanager.energystar.gov. Add your property and enter the required building characteristics:
- Property name, address, and year built
- Primary and secondary space types (e.g., Office, Retail)
- Gross floor area (sq ft)
- Weekly operating hours
- Occupancy percentage (% of gross floor area occupied)
- Number of workers (on the main shift)
- Number of computers (for office buildings)
- Number of rooms (for hotels) / beds (for hospitals)
Accuracy matters: Portfolio Manager normalizes your score for these inputs. Underreporting occupancy or overstating floor area will artificially inflate your score and create issues during PE verification.
Enter 12 Months of Utility Data
Add all energy meters to your property in Portfolio Manager: electricity, natural gas, steam, chilled water, fuel oil — every energy source your building consumes. Then enter 12 consecutive months of utility bill data for each meter.
- Manual entry: Log in monthly and enter each bill as it arrives
- Automatic upload: Many utilities offer direct data exchange with Portfolio Manager — check your utility's website or the EPA's utility data upload directory
- Bulk import: Upload multiple months at once using Portfolio Manager's spreadsheet import feature
Once 12 months of data are entered, Portfolio Manager automatically calculates your ENERGY STAR score. If your score is 75 or above, you can proceed to certification. If not, see the improvement strategies below.
Hire a Licensed Professional for Data Verification
Before submitting to EPA, a qualified professional must verify that your Portfolio Manager data is accurate and the certification application is complete. EPA accepts three types of verifiers:
- Professional Engineer (PE) licensed in your state — the most common option
- Registered Architect (RA) licensed in your state
- EPA-recognized Energy Auditor/Inspector (EAI) — a smaller category; check EPA's approved list
The verifier reviews your utility data, confirms meter coverage, inspects the building (or reviews documentation), and digitally signs the Statement of Energy Performance in Portfolio Manager.
Cost: PE/RA verification fees typically range from $500 to $3,000 per building, depending on building size, meter complexity, and the engineer's market rate. Get 2–3 quotes. Portfolio certification programs can reduce per-building costs significantly.
Submit the Application to EPA
Once your PE/RA has signed the Statement of Energy Performance in Portfolio Manager, submit the certification application through Portfolio Manager. EPA reviews the application and — if approved — issues the ENERGY STAR certification:
- Official ENERGY STAR certification letter
- Physical certification plaque (for display in the building)
- ENERGY STAR certified building logo for use in marketing materials
- Listing in the public ENERGY STAR certified buildings database
EPA certification processing typically takes 4–8 weeks after submission. You will receive email notification when certification is granted.
Annual renewal: Certification expires after one year. To renew, update Portfolio Manager with the most recent 12 months of data, confirm your score remains 75+, obtain a new PE/RA verification, and resubmit. Some buildings choose to maintain continuous benchmarking in Portfolio Manager and renew as part of an annual energy reporting cycle.
Portfolio Manager: What You Need to Know
EPA ENERGY STAR Portfolio Manager (portfoliomanager.energystar.gov) is the official free tool for commercial building benchmarking and certification. It is used by virtually every U.S. mandatory benchmarking ordinance — from NYC Local Law 84 to Chicago's energy benchmarking ordinance.
Key Portfolio Manager Features
- Free for all building types — no subscription, no usage limits
- Multi-property support — manage an entire portfolio from one account
- Utility data sharing — share access with your utility for automatic meter uploads
- Reporting — generate ENERGY STAR score reports, EUI comparisons, and year-over-year trend data
- Benchmarking ordinance compliance — export reports in the format required by NYC, Chicago, Boston, and other cities
- Certification workflow — the complete PE/RA verification and EPA submission workflow is built in
What Data Portfolio Manager Uses to Calculate Your Score
Portfolio Manager calculates your ENERGY STAR score using source Energy Use Intensity (EUI) — your total energy consumption converted to source energy (which accounts for upstream generation losses) divided by your gross floor area. This source EUI is then compared against the national distribution for your building type from EPA's Commercial Buildings Energy Consumption Survey (CBECS).
The score is normalized for: climate (weather-normalized using degree days for your location), operating hours, occupancy, and building-specific characteristics (like number of computers for offices or number of rooms for hotels). This normalization is what makes the score meaningful — a building in Phoenix is not unfairly compared to one in Seattle.
How to Connect Your Utility to Portfolio Manager
Many utilities participate in EPA's automatic data exchange program, which uploads your meter data directly to Portfolio Manager — eliminating manual bill entry. To check if your utility participates, go to Portfolio Manager > Add Meter > Automatic Data Upload and search for your utility. Over 200 utilities nationwide participate. If your utility isn't listed, you can request they join at no cost through EPA's utility partnership program.
ENERGY STAR Certification Costs and Timeline
Timeline
Important: You need 12 consecutive months of energy data before you can apply. If you are new to Portfolio Manager, the minimum time from starting to receiving certification is approximately 12–15 months.
How to Improve Your ENERGY STAR Score to Reach 75
A 10-point score improvement typically requires approximately 10% total energy reduction. Buildings scoring in the 55–70 range are often 15–25% over the target — achievable with a focused efficiency program. The highest-impact improvements, ranked by typical ROI:
1. HVAC Recommissioning
Correcting control faults, fixing economizers, rebalancing air handling — often yields 10–20% HVAC savings with minimal capital cost.
2. LED Lighting Retrofit
Replace fluorescent/metal halide with LED. Reduces lighting energy 50–75% and cooling load by 10–15%. Fast payback with utility rebates.
3. BAS / EMS Optimization
Implement occupancy-based HVAC scheduling, setback during unoccupied hours, and automated demand limiting via Building Automation System.
4. Plug Load Management
Power management policies for computers and office equipment. Smart power strips, occupancy-controlled outlets. Low cost, meaningful results.
5. HVAC Equipment Upgrades
Replace aging rooftop units (RTUs) or chillers with high-efficiency models. IEER 16+ RTUs vs. IEER 12 standard can cut HVAC energy 25–35%.
6. Envelope Improvements
Air sealing, insulation upgrades, and window retrofits reduce heating and cooling load. Higher impact in climates with extreme temperatures.
For buildings at 65–74 (close to the 75 threshold), an ASHRAE Level 2 energy audit is the fastest way to identify and prioritize the specific measures needed to cross the certification threshold. See ASHRAE Energy Audit definition for audit scope and costs.
Consider using the ENERGY STAR Checker tool to estimate your current score and model improvement scenarios before committing to capital projects.
Benefits of ENERGY STAR Certification
ENERGY STAR certification delivers both financial and non-financial returns:
Financial Benefits
- Lower operating costs: ENERGY STAR-certified buildings use 35% less energy than the national median, directly reducing utility bills
- Premium rents: Multiple peer-reviewed studies have found ENERGY STAR-certified office buildings command rent premiums in major markets
- Higher occupancy: Institutional and corporate tenants increasingly require or prefer energy-certified space in RFPs
- Better financing terms: Some lenders offer green loans and favorable terms for certified buildings
- Higher sale price: Certified buildings have demonstrated higher valuations in commercial real estate transactions
Regulatory and Compliance Benefits
- NYC Local Law 97 compliance pathway: High ENERGY STAR scores correlate with lower emissions, reducing LL97 penalty exposure
- BERDO (Boston) compliance support: ENERGY STAR-certified buildings often meet or approach Boston's emissions intensity targets
- Mandatory benchmarking: Portfolio Manager data satisfies annual benchmarking requirements in 50+ U.S. cities
- Federal procurement preference: Federal agencies and GSA-leased properties must prioritize ENERGY STAR-certified buildings
ESG and Investor Relations
- ESG reporting: ENERGY STAR certification is accepted by GRESB, LEED, and most institutional ESG reporting frameworks
- Tenant sustainability requirements: Corporate tenants with net-zero commitments increasingly require energy certification as a lease condition
- Investor documentation: ENERGY STAR certification simplifies green bond issuance and sustainability-linked financing