Interconnection queue › Massachusetts › Middlesex County › Storage

Storage Projects in Middlesex County, Massachusetts

Snapshot of 2026-09-07 · 17 projects

17 storage projects are in the interconnection queue in Middlesex County, Massachusetts, totaling 2,925 MW across the 17 that publish a capacity.

Grouped from the ISOs' own fuel codes (see the mapping). Codes we could not match to a published definition are left unclassified rather than assigned here.

See what moved in storage in Middlesex County, Massachusetts each week

The ISOs publish today's queue and overwrite it, so no archive exists. We keep a weekly copy. Leave your email and we'll send you each week's changes in storage in Middlesex County, Massachusetts, from new entries to projects that came off the list.

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By ISO

ISO	Projects	Capacity
ISO-NE	17	2,925 MW

By fuel code, as published

Fuel	Projects	Capacity
BAT	17	2,925 MW

By status, as published

Status	Projects
(not published)	17

Largest projects with published capacity

The 12 highest-capacity rows in this page's exact scope, ordered by the capacity the ISO published. Projects without a published capacity are not ranked here and remain included in the totals above.

Project	ISO	MW	Status	Queue date	Proposed operation
Battery Storage ID 1143	ISO-NE	508	not published	6/15/2021	5/31/2028
Battery Storage ID 1057	ISO-NE	500	not published	8/28/2020	6/1/2025
Battery Storage ID 1567	ISO-NE	500	not published	6/11/2024	4/27/2028
Battery Storage ID 1082	ISO-NE	204	not published	10/29/2020	6/1/2025
Norman Street Battery Storage ID 1110	ISO-NE	204	not published	3/18/2021	3/18/2028
Battery Storage ID 1083	ISO-NE	200	not published	10/29/2020	12/1/2023
Battery Storage ID 1506	ISO-NE	153	not published	3/22/2024	6/1/2028
Storage ID 761	ISO-NE	150	not published	4/27/2018	5/31/2021
Storage ID 984	ISO-NE	150	not published	4/1/2020	9/20/2023
Battery Storage ID 1553	ISO-NE	125	not published	6/4/2024	5/1/2028
Battery Storage ID 1541	ISO-NE	101	not published	5/28/2024	5/31/2028
Energy Storage ID 689	ISO-NE	100	not published	11/21/2017	5/31/2023

Where each number came from

ISO	We last read	Source last changed	Source
ISO-NE	2026-09-07	2026-09-07 (changed this snapshot)	source file

This week's changes · How this is collected

Compiled from each ISO's own published interconnection queue report. Queue position is not a permit, a contract, or a guarantee that a project will be built; most projects in every queue are eventually withdrawn. Figures are reproduced as published, are provided for informational purposes only, and carry no warranty of accuracy or completeness. Always verify against the ISO's own report before relying on any figure.