Cambridge Building Energy Use Disclosure Ordinance (BEUDO): What Businesses Need to Know
A guide to understanding Cambridge’s energy performance standards and compliance requirements for commercial and multifamily buildings.
Understanding Cambridge’s Building Performance Standards
Cambridge, Massachusetts, has strengthened its climate policies by amending the Building Energy Use Disclosure Ordinance (BEUDO) to set aggressive carbon reduction targets for large buildings. The updated policy requires commercial, institutional, and multifamily buildings to track energy use, report emissions, and progressively reduce their carbon footprint to meet net-zero goals.
If you own or operate a building in Cambridge, compliance with BEUDO is mandatory. Failing to meet performance targets can result in fines, increased operational costs, and reputational risks. Understanding BEUDO’s requirements and taking proactive measures will ensure compliance while improving efficiency and cost savings.
Who Must Comply with BEUDO?
BEUDO applies to:
- Commercial, institutional, and industrial buildings 25,000 square feet or larger.
- Residential buildings with 50 or more units.
- Municipal buildings 10,000 square feet or larger.
Buildings that fall under these categories must comply with annual energy reporting, emissions reduction requirements, and long-term electrification goals.

Key Compliance Requirements for BEUDO
1. Annual Energy Benchmarking and Reporting
Building owners must submit annual energy and emissions data using the ENERGY STAR Portfolio Manager. This data helps the city monitor energy trends and assess overall building performance. The reporting process includes:
- Tracking electricity, natural gas, steam, and water consumption.
- Submitting emissions data for greenhouse gas reporting.
- Ensuring accurate data entry to avoid compliance issues.
2. Greenhouse Gas Emissions Reduction Targets
The 2023 BEUDO amendments introduced strict emissions limits for large buildings. Compliance is measured based on annual greenhouse gas emissions per square foot, with targets progressively reducing over time.
- By 2035: Large non-residential buildings must achieve net-zero emissions.
- By 2050: Smaller non-residential buildings must comply with net-zero standards.
3. Electrification and Renewable Energy Adoption
To meet emissions reduction goals, BEUDO encourages electrification of building systems and increased use of renewable energy sources. Compliance strategies include:
- Replacing gas-powered heating and water systems with electric alternatives.
- Installing on-site solar or purchasing renewable energy credits (RECs).
- Participating in Cambridge’s Community Electricity Aggregation program.
4. Alternative Compliance Credits
Building owners who cannot meet emissions reduction targets on time may purchase Alternative Compliance Credits (ACCs) to offset their carbon footprint. However, ACC purchases must be limited and used as a short-term strategy while transitioning to sustainable energy solutions.

Compliance Deadlines
BEUDO compliance is structured around annual reporting deadlines and phased emissions reductions.
- Annual energy and emissions reports must be submitted by May 1 each year.
- Interim emissions reduction targets apply leading up to net-zero goals in 2035 and 2050.
Non-compliance results in fines and enforcement actions from the City of Cambridge.
Steps to Achieve Compliance
1. Conduct an Energy Assessment
Start by evaluating your building’s current energy performance. An energy audit will identify areas for improvement and highlight the most cost-effective upgrades.
2. Improve Energy Efficiency
Upgrading building systems can help reduce emissions and lower operating costs. Key improvements include:
- Upgrading HVAC systems to high-efficiency electric heat pumps.
- Installing LED lighting and advanced building controls.
- Optimizing insulation and windows for energy conservation.
3. Transition to Renewable Energy
To comply with BEUDO’s net-zero goals, building owners should:
- Invest in on-site solar or wind power generation.
- Purchase clean electricity through Cambridge’s municipal energy programs.
- Use battery storage solutions to manage energy demand.

4. Electrify Building Systems
BEUDO’s long-term compliance strategy prioritizes full electrification of building operations. Owners should replace:
- Gas-powered HVAC systems with electric heat pumps.
- Gas stoves and water heaters with electric alternatives.
- Steam heating with district energy systems where available.
5. Submit Energy and Emissions Reports on Time
Ensure your annual BEUDO energy report is submitted by the May 1 deadline. Work with qualified professionals to verify data accuracy and prevent compliance issues.
Financial Incentives & Compliance Support
The City of Cambridge offers various financial programs to help businesses comply with BEUDO:
1. Energy Efficiency Rebates:
Incentives for lighting, HVAC, and insulation upgrades.
2. Renewable Energy Tax Credits:
Federal and state credits for solar and battery storage installations.
3. PACE Financing:
Low-interest financing for energy retrofits.
These programs help offset the cost of compliance and accelerate return on investment.

Why Compliance Matters for Businesses
Meeting BEUDO’s requirements is not just about regulatory compliance it’s about future-proofing your business. Key benefits include:
1. Lower Energy Costs:
Efficiency improvements reduce utility bills and maintenance expenses.
2. Higher Property Value:
Energy-efficient buildings attract investors, tenants, and buyers.
3. Regulatory Risk Reduction:
Avoid fines and costly retrofits by staying ahead of deadlines.
4. Sustainability Leadership:
Businesses that comply with BEUDO position themselves as climate leaders in Cambridge’s sustainable economy.
What Should Building Owners Do Next?
If your building falls under BEUDO, start planning now to ensure compliance with upcoming requirements.
Next Steps:
- Verify if your building is subject to BEUDO regulations.
- Schedule an energy assessment and evaluate emissions reduction options.
- Upgrade building systems to improve efficiency and electrify operations.
- Submit annual energy reports and track progress toward net-zero goals.
By acting now, you can ensure compliance while benefiting from cost savings, improved building performance, and long-term sustainability.