Interconnection queueMassachusetts › Solar

Solar Projects in the Massachusetts Interconnection Queue

Snapshot of 2026-08-09 · 65 projects

65 solar projects are in the interconnection queue with a Massachusetts location, totalling 697 MW across the 65 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

ISOProjectsCapacity
ISO-NE65697 MW

By status, as published

StatusProjects
(not published)65

Top counties

CountyProjectsCapacity
Worcester34400 MW
Hampden11112 MW
Plymouth532 MW
Bristol416 MW
Berkshire438 MW
Hampshire476 MW
Franklin217 MW
Norfolk15 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.

ProjectISOCountyMWStatusQueue dateProposed operation
Powder Mill substation - NG Western MA Area Cluster Study
ID 857
ISO-NEWorcester71not published3/21/20198/1/2020
Solar
ID 1031
ISO-NEHampshire40not published6/18/202010/1/2023
Whitmanville substation - NG Western MA Area Cluster Study
ID 866
ISO-NEWorcester27not published3/21/20198/1/2020
Crystal Lake Substation - NG Western MA Area Cluster Study
ID 811
ISO-NEWorcester25not published12/14/201812/31/2020
Snow Street substation - NG Western MA Area Cluster Study
ID 861
ISO-NEWorcester25not published3/21/20194/5/2023
Brookfield substation - NG Western MA Area Cluster Study
ID 851
ISO-NEWorcester24not published3/21/20198/1/2020
New Salem substation - NG Western MA Area Cluster Study
ID 856
ISO-NEWorcester21not published3/21/20198/1/2020
Stafford Street substation - NG Western MA Area Cluster Study
ID 862
ISO-NEWorcester20not published3/21/201910/1/2022
Shutesbury substation - NG Western MA Area Cluster Study
ID 860
ISO-NEHampshire20not published3/21/201912/31/2023
Solar
ID 686
ISO-NEBerkshire20not published10/24/201712/15/2021
Solar
ID 326
ISO-NEHampden20not published4/8/20106/1/2012
Palmer Substation - NG Western MA Area Cluster Study
ID 820
ISO-NEHampden18not published12/14/20181/20/2022

Where each number came from

ISOWe last readSource last changedSource
ISO-NE2026-08-092026-08-09 (changed this snapshot)source file

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.

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