Energy Benchmarking Requirements

calculator and energy bill statementsEnergy Benchmarking is the process of tracking a building's annual energy use. Benchmarking improves understanding of energy consumption patterns; helps identify energy saving opportunities within a portfolio of buildings; manages business bottom line through consistent data collection and tracking; and is used to establish building energy performance standards for each covered building and to gauge progress towards the standards. 

Montgomery County's Energy Benchmarking Law requires building owners to:

  1. Track the energy use of covered buildings in ENERGY STAR Portfolio Manager;
  2. Have data verified by a Recognized Data Verifier the first year and every three years thereafter;
  3. Report data to the County annually;
  4. Meet long-term site energy use intensity building energy performance standards (BEPS).
Data disclosure is another key facet of County law. For public access to benchmarking data, the Montgomery County Building Energy Performance Map is an interactive and user-friendly tool to investigate compliance status and energy performance data for each covered building. 

For questions and guidance, please contact [email protected] or book a virtual appointment with DEP staff. 

Benchmarking Law Compliance

Compliance with the County's Benchmarking Law is a multi-step process that must be completed annually. By following the steps below, you’ll be able to benchmark your building, have the data verified, and report data to DEP.

DEP requires the use of ENERGY STAR Portfolio Manager to enter and report data each year. Please review the Montgomery County Building Energy Benchmarking HOW-TO GUIDE (PDF) for full instructions on reporting.

Benchmarking Help

Email the Benchmarking Helpdesk or call us at 240-777-7707 for questions about the benchmarking law, building coverage, and to be connected with resources at EPA’s Portfolio Manager or at local utilities.

You can also book a Benchmarking Support virtual meeting with one of DEP staff here. Please book a 30 minute time slot and add your Montgomery County Building ID, building address, and a brief summary of your question in the "Notes" section.

Sign-up for the Commercial Energy News, a newsletter that includes all of the Benchmarking Law updates, as well as Commercial PACE financing news, green building news, and commercial energy events.

Extensions, Exemptions, and Waivers

State of Maryland Benchmarking Requirements

The State of Maryland's benchmarking and building energy performance standards requirements cover most buildings in Maryland that are 35,000 square feet and larger (excluding the parking area). September 1, 2025 is the State benchmarking deadline for building owners to benchmark buildings covered by Maryland law in ENERGY STAR Portfolio Manager and report calendar year 2024 energy data to the Maryland Department of Environment (MDE). 

Starting October 1, 2025, buildings in Montgomery County will be exempt from the State's benchmarking and BEPS requirements. At that time, buildings covered by the County's benchmarking/BEPS program will only be subject to County requirements. This follows legislation (HB 49) passed by the Maryland General Assembly that will go into effect on October 1. For questions about Montgomery County benchmarking and BEPS requirements contact [email protected].

NEW: On August 14, 2025, MDE issued a compliance advisory - Buildings in Montgomery County that are in compliance with the Montgomery County Department of Environmental Protection (DEP) BEPS (i.e. have submitted a benchmarking report to DEP) will be treated as in compliance with Maryland BEPS for 2025 and their status on the BEPS portal will be updated to reflect this. Beginning October 1, 2025, buildings in Montgomery County will be waived from Maryland BEPS requirements but, if covered by the Montgomery County BEPS regulations, must comply with the county program.

Buildings covered by Maryland law can find the Unique Building ID (UBID) and additional instructions to report to MDE via ENERGY STAR Portfolio Manager can be found in MDE's BEPS Portal and  Benchmarking Guide (PDF). Historic buildings, public and nonpublic elementary and secondary schools, manufacturing buildings, agricultural buildings, and federal buildings can all apply to be exempted via MDE's BEPS PortalFor questions about state benchmarking and BEPS requirements contact [email protected].