Interconnection queue › Massachusetts › Hydro

Hydro Projects in the Massachusetts Interconnection Queue

Snapshot of 2026-09-07 · 24 projects

24 hydro projects are in the interconnection queue with a Massachusetts location, totaling 258 MW across the 23 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.

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By ISO

ISO	Projects	Capacity
ISO-NE	24	258 MW (from 23 of 24 projects)

By status, as published

Status	Projects
(not published)	24

Top counties

County	Projects	Capacity
Franklin	8	100 MW (from 7 of 8 projects)
Berkshire	7	152 MW
Hampden	7	6 MW
Franklin and Berkshire	1	0 MW
Franklin and Bershire	1	0 MW

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	County	MW	Status	Queue date	Proposed operation
Bear Swamp Unit 1 and 2 Upgrade ID 592	ISO-NE	Berkshire	66	not published	1/21/2016	1/6/2023
Bear Swamp Uprate - First Unit ID 227	ISO-NE	Berkshire	43	not published	9/26/2007	3/31/2012
Pump Storage Capacity Upgrade ID 227#1186f7ab	ISO-NE	Berkshire	43	not published	9/26/2007	3/30/2013
Northfield Mt Upgrade #3 ID 196	ISO-NE	Franklin	25	not published	1/16/2007	6/17/2011
Northfield Mt Upgrade #1 ID 196#84135cdb	ISO-NE	Franklin	25	not published	1/16/2007	2/18/2016
Northfield Mt. Upgrade #2 ID 196#e6d2c4b8	ISO-NE	Franklin	25	not published	1/16/2007	5/25/2012
Northfield Mt. Upgrade #4 ID 196#fe1e65b0	ISO-NE	Franklin	25	not published	1/16/2007	5/21/2014
Hydro ID 306	ISO-NE	Hampden	3	not published	7/13/2009	4/1/2014
Indian River Power ID 269	ISO-NE	Hampden	1	not published	7/14/2008	8/2/2011
Cresent Hydroelectric Project Uprate ID 315	ISO-NE	Hampden	1	not published	10/20/2009	6/8/2012
Overflow #3 ID 306#f3370acb	ISO-NE	Hampden	0	not published	7/13/2009	11/30/2013
Glendale Hydroelectric Expansion Project ID 441	ISO-NE	Berkshire	0	not published	2/25/2014	11/13/2018

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.