ENERGY STAR Portfolio Manager and Building Performance Standards: How Equipment Condition Drives Your Score

• Building performance standards now carry real fines: up to $268 per ton of excess emissions in New York City and up to $5,000 plus $1.50 per square foot in Washington State.
• The ENERGY STAR score compares your source energy use with similar buildings nationwide, adjusted for weather and operation. A 50 is median; 75 or higher can earn certification.
• In offices, space heating and ventilation alone account for about half of energy use (EIA CBECS 2018), so HVAC faults hit the score hardest.
• Field studies keep finding the same faults: only 3 of 26 rooftop economizers tested in one California study worked as designed.
• Fault correction pays: buildings using fault detection reported median savings of 8%, and retrocommissioning a median 16% with about a one year payback.

Benchmarking laws ask owners to report energy use, usually through Portfolio Manager. Building performance standards go further and set a limit on energy use or emissions, with penalties for buildings that miss it. According to the Institute for Market Transformation, 16 building performance standard laws were active across U.S. cities, counties and states as of July 2026 (Vert Energy Group, July 2026), and IMT tracks more than 150 U.S. building policies in total (IMT impact report).

The penalties below come from the Facilities Dive building performance standards tracker (updated October 2026) unless noted:

• New York City, Local Law 97: up to $268 for every ton of carbon dioxide equivalent above the annual limit. In the first compliance year, 29,031 buildings were required to report and more than 9,950 met the 2024 limits, or 95% of filings; limits tighten sharply in 2030 (Utility Dive, September 2026).
• Washington State, Clean Buildings Performance Standard: up to $5,000 plus $1.50 per square foot. Tier 1 buildings over 220,000 square feet were due June 1, 2026, those over 90,000 square feet are due in 2027 and those over 50,000 square feet in 2028. Every covered building also needs an energy management plan and an operations and maintenance program (Washington Commerce).
• Colorado, Building Performance Colorado: $2,300 for every 30 days in violation, starting January 1, 2030, after House Bill 25-1269 removed penalties for the 2026 targets.
• Denver, Energize Denver: up to 70 cents for each kBtu a year that a building falls short of its targets, with interim targets covering 2027.
• Boston, BERDO: $1,000 a day for larger nonresidential buildings that miss emissions standards, or an alternative compliance payment of $234 per metric ton.

These are local laws: they apply where a city or state has adopted them, and the details change often. Check your own jurisdiction's current rules before setting a compliance plan.

Texas: Austin's ECAD ordinance

Texas has no statewide performance standard, but Austin does require benchmarking. Under the Energy Conservation Audit and Disclosure ordinance, commercial buildings of 10,000 square feet or more that take electricity from Austin Energy must benchmark and report by June 1 each year, either through ENERGY STAR Portfolio Manager or Austin Energy's key code process (Austin Energy).

Portfolio Manager compares your building with similar buildings nationwide, not with other buildings in the tool. EPA builds a statistical model from the Energy Information Administration's Commercial Buildings Energy Consumption Survey, estimates how much energy a building like yours should use at each performance level, and ranks your actual use against those estimates (ENERGY STAR).

• What goes in: twelve months of metered energy plus property details such as size, location, number of occupants and number of computers.
• How it is adjusted: the calculation uses source energy and accounts for weather and for how the building operates, such as 24 hour use or high worker density.
• What the number means: 50 is median performance for the peer group. A 75 or higher marks a top performer.
• Certification: a score of 75 or higher, verified by a licensed Professional Engineer or Registered Architect, and renewed every year (ENERGY STAR certification).

Adoption is broad: nearly 25% of U.S. commercial building space is already benchmarking in Portfolio Manager (ENERGY STAR). Benchmarking alone tends to help. An EPA analysis of more than 35,000 buildings that benchmarked from 2008 to 2011 found average energy savings of 7% over three years (IMT on EPA DataTrends, 2012).

What actually moves the score

Only two things move it. Energy use goes down while operation stays the same, or the property data gets corrected. Both matter, and the second is the cheaper first step:

• Wrong gross floor area: a missed floor or a parking garage counted as office changes the energy intensity overnight.
• Stale operating details: weekly hours, worker counts and computer counts that still reflect the building before tenants moved in or out.
• Missing meters: a submeter or a tenant's direct utility account left out makes the building look better than it is, until someone finds it.

In office buildings, space heating uses about 30% of energy, ventilation about 20% and lighting about 12% (EIA CBECS 2018). Fans, coils, dampers and controls sit at the center of that, and they drift out of tune without setting off an alarm. The faults that show up again and again:

• Broken economizers: a stuck damper or failed sensor means the unit runs compressors when outdoor air could cool for free. In one California field study, only 3 of 26 rooftop unit economizers were installed and programmed to deliver the expected economizer cooling (ETCC for PG&E).
• Fouled coils and loaded filters: both raise pressure drop, so fans work harder and coils transfer less heat for every kWh spent.
• Simultaneous heating and cooling: VAV reheat fighting chilled air, or a leaking heating valve on a cooling coil, burns energy twice.
• Schedule and setpoint drift: air handlers running nights and weekends after an override nobody cleared, or setpoints widened for one complaint and never reset.
• Failed sensors: a drifting outdoor air or supply air sensor sends the whole sequence the wrong way.
• Steam and compressed air leaks: continuous losses that appear on the bill but not on the BAS.

Fixing these is proven money. Across 26 organizations, 550 buildings and 97 million square feet, fault detection and diagnostics users reported median savings of 8% (Lin, Kramer and Granderson, LBNL, 2020). Lawrence Berkeley National Laboratory's study of commissioning found median whole building savings of 16% for existing buildings, with a payback of about 1.1 years (Mills, LBNL, 2009, via CSE).

A worked example

Take an office building in New York City that emits 3,000 tons of carbon dioxide equivalent a year and sits 300 tons over its Local Law 97 limit. At $268 a ton, the exposure is up to $80,400 a year.

If fault correction delivered the 8% median found in the LBNL fault detection study, emissions would drop by about 240 tons and the exposure by about $64,000 a year, before counting lower utility bills. It is an illustration, not a forecast.

Use this alongside your normal preventive maintenance program. It targets the items that move Portfolio Manager data and performance standard results.

Monthly

• Confirm every utility meter and submeter in Portfolio Manager has a reading, and flag estimated bills.
• Check economizer operation on each air handler and rooftop unit: damper position, actuator movement and outdoor air sensor reading.
• Read filter differential pressure gauges and replace filters at the set threshold, not on a fixed date.
• Compare BAS schedules with actual occupancy and clear any overrides.
• Look for simultaneous heating and cooling: hot reheat coils on zones in cooling, warm chilled water return.
• Walk mechanical rooms for steam, water and air leaks.

Quarterly

• Inspect and clean coils where pressure drop or temperature split has drifted.
• Spot check space, supply air and outdoor air sensors against a calibrated reference.
• Review setpoints and deadbands against the documented sequence of operations.
• Update Portfolio Manager property details after any tenant change.

Annually

• Retrocommission or tune the largest air handlers and the central plant.
• Reconcile gross floor area and space uses with the latest lease and floor plans.
• Have a licensed professional review data before applying for ENERGY STAR certification.
• Feed condition findings into the capital plan, as covered in our guide to deferred maintenance and facility condition assessments.

What is ENERGY STAR Portfolio Manager?

A free online tool from the U.S. Environmental Protection Agency that tracks a building's energy, water and emissions and calculates a 1 to 100 ENERGY STAR score for eligible property types.

What is a good ENERGY STAR score for an office building?

A score of 50 is median for similar buildings nationwide. A score of 75 or higher puts a building in the top quarter and makes it eligible for ENERGY STAR certification.

What are building performance standards?

Local or state laws that set limits on a building's energy use or emissions, usually for larger buildings, and charge penalties when a building misses them. Benchmarking laws only require reporting.

How can I raise my ENERGY STAR score quickly?

First correct the property data in Portfolio Manager, then fix operational faults such as broken economizers, schedule overrides, simultaneous heating and cooling and dirty coils and filters before planning capital upgrades.

Does Texas have a building performance standard?

There is no statewide standard. The City of Austin requires commercial buildings of 10,000 square feet or more served by Austin Energy to benchmark and report each year by June 1.

FacilityOps AI (RoboSkill Inc.) is an autonomous inspection platform that finds the equipment faults behind a weak score while they are still small. A FacilityOps inspection robot walks the route through mechanical rooms, air handler rooms, plant spaces and occupied floors on schedule, and records what it finds on every pass.

• Faults that waste energy: thermal images of coils, valves and steam lines, gauge readings such as filter differential pressure, and visual checks of damper linkages and actuators.
• Leaks you cannot see on the BAS: ultrasonic and acoustic readings pick up compressed air and steam leaks.
• Temperature records for setpoint changes: dated temperature readings across floors show where setpoints can safely widen without comfort complaints.
• Findings closed: each finding becomes a work order, and the next pass confirms the fix, so the savings stay in place.

That record also does compliance work. Washington requires every covered building to run an operations and maintenance program, and owners facing Local Law 97 or Energize Denver need to show what they did between reports. Dated round records show which equipment was checked, what was found and when it was fixed, organized by system and location, ready for an energy manager, a consultant or an auditor.

Across a portfolio, the same rounds make buildings comparable. Asset managers can see which properties carry the most open energy faults, rank them by likely score impact and send engineering time where the next point of ENERGY STAR score is cheapest to earn.

The records sit on the building's digital twin, so engineers can see where a fault was found and how it trended. The robot runs fully autonomously, and technicians can take manual control at any time. The platform is hardware agnostic: robots and sensor hubs are the usual delivery, and drones, other robots or a technician's camera can feed the same record.

Fix the faults first, then let the score show it.

FacilityOps documents equipment condition on its route. It does not replace an energy audit, retrocommissioning or your benchmarking submission, and it does not certify compliance with any law.

• Deferred Maintenance and Facility Condition Assessments: Using Inspection Data for Capital Planning
• Digital Twins for Commercial Buildings: What They Are and What They Do for Owners
• Preventive Maintenance for Commercial Office Buildings: The Complete Guide
• HVAC Maintenance for Office Buildings: What ASHRAE 180 Expects and What Owners Miss
• Indoor Air Quality Monitoring in Office Buildings: What to Measure and How to Share It with Tenants
• BOMA 360: What the Designation Takes and How Operations Records Get You There