On May 8, 2026 the Massachusetts Department of Energy Resources (DOER) requested the Department of Public Utilities approve a request for proposals (RFP) to solicit and enter into cost-effective Long-Term Contracts for Energy Storage Systems, pursuant to Chapter 239 of the Acts of 2024 (Section 83E).

The proposed RFP and supporting documents have been posted to the 83E II Documents section of macleanenergy.com.

The 83E Round I Evaluation Team notified stakeholders that the Electric Distribution Companies have filed a letter with the Massachusetts Department of Public Utilities regarding a change in the anticipated contract execution date. The contracting parties have not yet completed their contract negotiations and are now targeting the completion of negotiations and execution of contracts with the three counterparties on or before May 15, 2026.

Public comments were requested in response to the high-level draft guidance, issued July 31, 2025, regarding the participation of distribution-connected energy storage systems in the 83E Round 2 procurement. Stakeholders were invited to submit comments on the prompts posted in the attachment by August 28, 2025. To review comments and for additional details, click here.

Public versions of the bids received in the 83C IV solicitation have been posted at https://macleanenergy.com/83e-bids/.

In accordance with the 83E RFP for Long-Term Contracts for Energy Storage Projects, prospective bidders were allowed to submit written questions to the Evaluation Team pertaining to the solicitation. All questions were to be submitted to the Evaluation Team at maRFP83E@gmail.com no later than August 21, 2025. The Evaluation Team is under no obligation to answer any question submitted after August 21, 2025.

The Evaluation Team has posted responses to questions. Please find the responses at the 83E Q&A page.