City of Boston Implements Simplified Permitting Procedures and Revised Zoning for Small Clean Energy Projects | Energy & Climate Counsel

The City of Boston has introduced a new zoning amendment to streamline the permitting process for Small Clean Energy Infrastructure, in line with the state’s 2024 Act aimed at promoting a clean energy grid. This amendment, adopted on September 9, 2026, offers a defined pathway for renewable energy developers, ensuring a decision on permits within 12 months.

Key Features of the Amendment

1. Categories of Projects:

   • Small Clean Energy Generation Facilities: Facilities with less than 25 MW capacity (solar, wind, etc.).
   • Small Clean Energy Storage Facilities: Systems with a capacity under 100 MWh.
   • Small Clean Transmission and Distribution Infrastructure Facilities: Includes various infrastructure improvements.

2. Consolidated Permit Process:

   • Introduces a “Consolidated Local Permit” application that municipalities must accept by October 1, 2026.
   • The Boston Redevelopment Authority (BRA) will manage the review process.

3. Types of BESS:

   • Specific requirements for Battery Energy Storage Systems (BESS) based on size and use.
   • Certain configurations will need to follow the consolidated process.

4. Application Requirements:

   • Proponents must fulfill site-suitability and pre-filing requirements.
   • A 12-month review period involves coordination among multiple city departments.

5. Approval Process:

   • All components of the application must be approved for the application to proceed.
   • If no decision is made within the review period, the application is automatically approved.

6. Accessory BESS Regulations:

   • Accessory BESS with a footprint of 400 sq. ft. or less can be implemented without additional zoning approval.

7. Dimensional Regulations:

   • New setback, height, and lot coverage requirements for non-building-integrated BESS installations, with variations depending on their classification as main use or accessory.

Conclusion

This new framework is designed for developers to better manage timelines for small clean energy projects while ensuring environmental considerations are upheld. Accessory BESS installations have a simplified path, with clear guidelines set forth in the amendment.