Essex County, Massachusetts
Essex County, Massachusetts has 5 MW of data centers on record, planned to operating, across 1 record, against 1.2 GW of generation operating inside the county. The queue adds 430 MW of planned generation across 3 projects. That is 8.6% of Massachusetts's data center MW.
Essex County and its neighbors
Counties shaded by data center MW on record, planned to operating. 2 of its 2 neighboring counties have pages of their own. The rest are in the member database.
Data center records planned, under construction and operating, data as of October 8, 2026.Hover a county for its numbers
of the generation operating in the county is matched by data center MW on record: 5 MW of data centers against 1.2 GW of plants, with 430 MW more planned.
Data centers by status
1 record, 5 MW
The data center pipeline
None of the 1 record lists a year online or expected, so the pipeline is shown by developer only.
Who is building in Essex
Data center developers by MW on record. Top 1 of 1.
View as table
| Developer | Sites | MW |
|---|---|---|
| Tierpoint | 1 | 5 |
Power generation in the county
53 plants operate inside Essex County, 1.2 GW. The queue adds 430 MW across 3 projects.
Operating and planned generation by technology
MW in Essex County
View as table
| Technology | Status | Projects | MW |
|---|---|---|---|
| Natural Gas | Operating | 16 | 917.4 |
| Battery Storage | Operating | 4 | 8.4 |
| Battery Storage | Planned | 3 | 430 |
| Municipal Solid Waste | Operating | 3 | 144.1 |
| Solar | Operating | 21 | 54.8 |
| Hydro | Operating | 2 | 14.8 |
| Oil | Operating | 5 | 8.4 |
| Wind | Operating | 2 | 5.6 |
Planned generation by listed in-service year
MW. Years before 2026 are past due.
View as table
| Year | Planned projects | MW |
|---|---|---|
| 2026 | 1 | 5 |
| 2027 | 0 | 0 |
| 2028 | 2 | 425 |
Essex County against its neighbors
Middlesex County has the most data center MW among the neighbors, 29 MW, more than Essex County. 2 of the 2 have more generation operating than data center MW on record.
| County | Data center records | Data center MW | Operating generation MW | Planned generation MW | Data center MW per MW operating |
|---|---|---|---|---|---|
| Middlesex County | 2 | 1,729 | 0.06x | ||
| Suffolk County | 3 | 800 | 0.07x | ||
| Essex County this page | 1 | 430 | 0x |
Data center MW counts records planned, under construction and operating. Generation is inside the county only. Neighbors without a page have fewer than three projects on record.
3 counties shownWhat changed since June 4, 2026
1 project in Essex County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.
Every change in Essex County
Project, what changed, technology, MW and the dates that moved, for all 1 change.
| Project | Change | Technology | MW | Previous date | New date |
|---|---|---|---|---|---|
Rows are hidden on public pages. Members see the project behind each change, its developer and the dates that moved.
Every record in Essex County
Campus or project name, developer, status, MW, year and the developer’s contacts, for all 57 records. Filter, sort and export to Excel.
| Project or campus | Developer | Status | MW | Year | Contacts |
|---|---|---|---|---|---|
Rows are hidden on public pages. Members see every field and can export up to 1,000 rows a month on Solo, unlimited on Unlimited.
Get alerts for Essex County
We email you when a data center or power project in Essex County is added, changes status, signs an interconnection agreement or slips its date. One email per snapshot, only when something changed.
Open every campus, project and contact in Essex County.
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