This page is reserved for Section 83E Storage Procurement. Please check back for updates.

December 19, 2025

DOER and the Distribution Companies have completed the evaluation of bids received in response to the Section 83E Storage request for proposals (“Section 83E 1 RFP”). The bid evaluation process included monitoring and assistance by an Independent Evaluator.

DOER selected Energizar (FlatIron Energy), River Mill Storage (Rhynland Energy), Trimount ESS (Jupiter Power), and Salt Cod (FlatIron Energy) for a total of 1,268 MW of energy storage capacity.

The final acceptance of the bids and the award of contracts is conditional upon successful negotiation of mutually acceptable long-term contracts between the bidders and each of the Massachusetts Distribution Companies, as well as required regulatory approvals of such contracts, as provided by the RFP.

July 31, 2025

The Massachusetts Electric Distribution companies, in coordination with the Massachusetts Department of Energy Resources, issued an RFP for Long-term Contracts for Energy Storage Systems and associated Environmental Attributes pursuant to Section 83E of Chapter 169 of the Acts of 2008 (“Section 83E”), as amended by chapter 188 of the acts of 2016, and as further amended by section 98 of chapter 239 of the Acts of 2024. The Distribution Companies are seeking to procure approximately 1,500 MW of Mid Duration Energy Storage Systems. This is the first solicitation pursuant to Section 83E and it is part of a staggered procurement schedule developed by DOER, in coordination with the Distribution Companies, in accordance with the authority granted to DOER.

Visit the 83E Documents and 83E Timeline for more information. This timeline has been approved by the MA DPU.

May 5, 2025

The Department of Energy Resources (DOER) and the Massachusetts distribution companies jointly requested the Department of Public Utilities approve a RFP to solicit and enter into cost-effective Long-Term Contracts for Energy Storage Systems and associated Environmental Attributes, pursuant to Chapter 239 of the Acts of 2024 (Section 83E). The proposed RFP and supporting documents have been posted to the 83E Documents.

February 21, 2025

Request for Public Comment issued.