Massachusetts Interconnection Queue

Snapshot of 2026-09-07 · 605 projects · ISO-NE

There are 605 projects in the interconnection queue with a Massachusetts location, totaling 81,350 MW across the 528 that publish a capacity.

Technology in Massachusetts

See what moved in 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 Massachusetts, from new entries to projects that came off the list.

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By ISO

ISO	Projects	Capacity
ISO-NE	605	81,350 MW (from 528 of 605 projects)

By fuel, as published

Shown in each ISO's own coding. A state served by more than one ISO will show more than one spelling of the same technology, and we do not silently merge them here.

Fuel	Projects	Capacity
BAT	163	23,745 MW
SUN BAT	106	1,125 MW
SUN	65	697 MW
DFO NG	48	7,267 MW (from 40 of 48 projects)
WND	47	20,595 MW
N/A	47	20,860 MW (from 31 of 47 projects)
NG	36	4,942 MW (from 25 of 36 projects)
(not published)	30	not published
WAT	24	258 MW (from 23 of 24 projects)
BIT	9	36 MW (from 5 of 9 projects)
WDS	7	253 MW
DFO	4	10 MW (from 1 of 4 projects)
LFG	4	3 MW (from 2 of 4 projects)
NUC	2	0 MW (from 1 of 2 projects)
NG WO	2	379 MW

Counties in Massachusetts

25 counties appear in these rows. 9 have enough projects to answer a county-level question and are linked below; the rest are listed with their counts and get no page of their own, and 2 carry a placeholder instead of a location, so we cannot say where those projects are.

County	Projects	Capacity
Worcester County	104	6,210 MW (from 100 of 104 projects)
Hampden County	68	6,307 MW (from 62 of 68 projects)
Bristol County	65	7,799 MW (from 56 of 65 projects)
Middlesex County	59	10,551 MW (from 48 of 59 projects)
Plymouth County	50	7,056 MW (from 43 of 50 projects)
Berkshire County	42	2,767 MW (from 40 of 42 projects)
Norfolk County	38	3,645 MW (from 32 of 38 projects)
NA	34	20,926 MW (from 33 of 34 projects)	location not published by the ISO
Barnstable County	33	2,445 MW (from 25 of 33 projects)
Franklin County	29	1,231 MW (from 28 of 29 projects)
Suffolk County	23	5,154 MW (from 11 of 23 projects)	below our page threshold
Essex County	19	2,420 MW (from 14 of 19 projects)	below our page threshold
Hampshire County	16	532 MW	below our page threshold
N/A	8	454 MW (from 6 of 8 projects)	location not published by the ISO
Dukes County	2	11 MW	below our page threshold
Somerset County	2	18 MW (from 1 of 2 projects)	below our page threshold
Suffolk/Barnstable County	2	not published	below our page threshold
Berkshire & Franklin County	1	28 MW	below our page threshold
Franklin and Berkshire County	1	0 MW	below our page threshold
Franklin and Bershire County	1	0 MW	below our page threshold
Franklin/Hampshire County	1	9 MW	below our page threshold
Hampden/Franklin County	1	8 MW	below our page threshold
Middlesex/Norfolk County	1	17 MW	below our page threshold
Middlesex/Worcester County	1	9 MW	below our page threshold
Wocester County	1	153 MW	below our page threshold

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
345 kV AC line ID 625	ISO-NE	Bristol	1,600	not published	11/10/2016	12/31/2023
Offshore wind ID 1119	ISO-NE	NA	1,320	not published	4/14/2021	9/1/2027
Offshore wind ID 1451	ISO-NE	NA	1,309	not published	10/5/2023	9/27/2030
Offshore Wind ID 1059	ISO-NE	NA	1,200	not published	9/9/2020	11/30/2027
SouthCoast Wind 1 ID 1116	ISO-NE	NA	1,200	not published	4/13/2021	12/31/2031
Offshore wind ID 1121	ISO-NE	NA	1,200	not published	4/19/2021	5/31/2033
1200 MW DC Transmission Line ID 1157	ISO-NE	not published	1,200	not published	8/19/2021	5/31/2028
1200 MW DC Transmission Line ID 1158	ISO-NE	not published	1,200	not published	8/19/2021	5/31/2028
Offshore Wind ID 1225	ISO-NE	NA	1,200	not published	2/3/2022	1/31/2029
Offshore Wind ID 1297	ISO-NE	NA	1,200	not published	8/15/2022	5/31/2029
Enable 1200 MW injection at Mystic ID 1332	ISO-NE	not published	1,200	not published	11/8/2022	12/30/2029
Offshore Wind ID 1343	ISO-NE	NA	1,200	not published	12/19/2022	12/15/2029

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.