Energy Benchmarking Requirements

calculator and energy bill statementsEnergy Benchmarking is the process of tracking a building's annual energy use and using a standard metric to compare the building's performance against past performance and to its peers nationwide. Benchmarking improves our understanding of energy consumption patterns; helps identify energy saving opportunities within a portfolio of buildings; and manages business bottom line through consistent data collection and tracking.

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

  1. Track the energy use of covered buildings 25,000 gross square feet and greater 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 for public disclosure;
  4. Meet long-term site energy use intensity building energy performance standards (BEPS).
    • As benchmarking is the foundation for creating and tracking to BEPS, please review the Benchmarking for BEPS Checklist (PDF) to ensure you have benchmarked accurately and thoroughly.

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

Beginning in 2025, many buildings are subject to the State of Maryland's benchmarking and building energy performance standards requirements. Buildings that are covered by the Maryland regulation and need to comply are 35,000 square feet and larger (excluding the parking garage area). Historic buildings, public and nonpublic elementary and secondary schools, manufacturing buildings, agricultural buildings, and federal buildings can all apply to be exempted via the BEPS Portal.

Building owners are required to annually benchmark buildings subject to the performance standards and must submit previous calendar year whole building energy consumption data online through ENERGY STAR Portfolio Manager by June 1 each year, starting in 2025.​ For 2025 only, the deadline has been extended to September 1, 2025.

Please visit MDE's BEPS Portal for more information on requirements, building coverage, next steps, and resources. MDE's Benchmarking Guide (PDF) provides additional information about state requirements. For questions about state benchmarking and BEPS requirements, contact [email protected].

New: Legislation (HB 49) passed by the Maryland General Assembly this session will exempt buildings in Montgomery County from having to comply with the State's benchmarking and BEPS requirements. Buildings covered by the County's benchmarking/BEPS program will instead be subject to County requirements. The Governor will allow the bill to be enacted and it will go into effect on October 1. DEP recommends focusing on meeting the County’s June 2 benchmarking deadline. This website will be updated with additional guidance regarding the September 1st Maryland benchmarking deadline as soon as it becomes available.