Data Center Record.

The sourced public record of data center development.

States ยท Maryland

Montgomery County

closed 1 data center project, 1 scorecard row

No capacity figures disclosed. A rating belongs to the scorecard row for this county; the events beneath it are what it rests on.

Last verified

Projects on the record
1
rumored
1
How much power is disclosed
Not disclosed
What officials said
0 statements
Sources read here
0

Every figure above is computed from the records on this page at build time. Power is summed only where a project disclosed it; nothing is estimated.

What has been disclosed in Montgomery County

FigureDisclosed totalDisclosedNot disclosedBasis
PowerNot disclosed01
Water, stated per dayNot disclosed01
Water, stated per yearNot disclosed01
Permanent jobsNot disclosed01
Tax each yearNot disclosed01

Summed only where a record disclosed the figure; a record with no figure adds nothing and is counted as not disclosed. Water is summed per day and per year separately, as the sources stated it, and never converted. A tax claim given as a range is summed at both ends. Nothing here is modeled or estimated by the record.

By what the facilities are for

UseRecordsPowerWaterJobsTax each year
Not disclosed1Not disclosedNot disclosedNot disclosedNot disclosed

A record that lists several uses counts once under each. Each cell is the sum over the records with that use, disclosed rows only.

What the facilities are for

No source on file states what any of the 1 tracked facility in Montgomery Countyis for. The use is recorded as not disclosed until one does.

Projects

  • rumoredAtmosphere Dickerson data center

    A 300 megawatt data center campus proposed by Atmosphere Data Centers at the former Dickerson coal plant in Montgomery County, Maryland.

    Dickerson, Montgomery County · Capacity not disclosed · Last verified September 8, 2026

Montgomery County, year by year

On the record as of September 8, 2026.

The chart counts what is on the record: 1 published project in Montgomery County, with 4 dated events, 2 of them jurisdiction actions. A project counts in a year by the status its history shows at the end of that year, and its capacity, water and noise figures are the ones disclosed for it now, applied to every year it is on the record. Capacity is summed only where a source disclosed it; the count of projects without a disclosed figure sits beside every sum. A year with nothing on it has nothing on the record yet, which is not the same as nothing having happened.

Milestones Projects on the record at year end 0 1 Disclosed capacity at year end, MW 0 1 2023 2024 2025 2026, Announced, proposed, permitting or approved: 1 project, 0 MW disclosed, 1 with capacity not disclosed 2026
Operational Under construction Announced, proposed, permitting or approved Milestone, one dot per flagged event Tap a year or a dot to open that year. Stalled and cancelled projects stay in the yearly totals below and off the bars.
Narrow the events in every year
Event
Topic

Topics are matched from the words of each summary and are a finding aid, not a fact about the event. Counts in the chart do not change with the filters.

2026 1 project on the record at year end, 4 events

At the end of 2026

Operational
0 projects, 0 MW disclosed
Under construction
0 projects, 0 MW disclosed
Announced, proposed, permitting or approved
1 project, 0 MW disclosed, 1 with capacity not disclosed

Capacity, by how it was disclosed

Not disclosed for any of the 1 project on the record.

Water, by how it was disclosed

Not disclosed for any of the 1 project on the record.

Noise, by how it was disclosed

Not disclosed for any of the 1 project on the record.

Sound levels are not summed. The range is the lowest and highest level a source stated.

Events in 2026

  1. July 21, 2026 (content date) Moratoriumrumored Atmosphere Dickerson data center : Atmosphere Data Centers challenged the six-month data center moratorium in Montgomery County Source, query feed . Developer Atmosphere Data Centers
  2. July 28, 2026 (content date) Moratorium Montgomery County (jurisdiction): Montgomery County Council voted unanimously on July 28, 2026 for an 18 month moratorium on new data centers of 25 megawatts or more (threshold as reported by Bisnow, card 4220) Source, query feed
  3. July 28, 2026 (content date) Other Montgomery County (jurisdiction): The vote passed unanimously Source, query feed
  4. August 30, 2026 (content date) Moratoriumrumored Atmosphere Dickerson data center : Atmosphere Data Centers withdrew its appeal of zoning interpretation related to the moratorium Source, query feed . Developer Atmosphere Data Centers

Close 2026

2025 0 projects on the record at year end, 0 events

At the end of 2025

Operational
0 projects, 0 MW disclosed
Under construction
0 projects, 0 MW disclosed
Announced, proposed, permitting or approved
0 projects, 0 MW disclosed

Capacity, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Water, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Noise, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Sound levels are not summed. The range is the lowest and highest level a source stated.

Events in 2025

No dated event on the record in 2025.

Close 2025

2024 0 projects on the record at year end, 0 events

At the end of 2024

Operational
0 projects, 0 MW disclosed
Under construction
0 projects, 0 MW disclosed
Announced, proposed, permitting or approved
0 projects, 0 MW disclosed

Capacity, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Water, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Noise, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Sound levels are not summed. The range is the lowest and highest level a source stated.

Events in 2024

No dated event on the record in 2024.

Close 2024

2023 0 projects on the record at year end, 0 events

At the end of 2023

Operational
0 projects, 0 MW disclosed
Under construction
0 projects, 0 MW disclosed
Announced, proposed, permitting or approved
0 projects, 0 MW disclosed

Capacity, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Water, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Noise, by how it was disclosed

Not disclosed for any of the 0 projects on the record.

Sound levels are not summed. The range is the lowest and highest level a source stated.

Events in 2023

No dated event on the record in 2023.

Close 2023

The same chart for the whole state is at Maryland, year by year, and for every state at the national timeline.

Scorecard

Each rating is derived from the dated events beneath it, never typed in. Events are listed newest first with their source.

Cities

1 of 1 city has a record. A city without one is listed, not linked, until its first published record.

CityProjectsRules on the recordWhat officials saidHow it treats data centers
Dickerson100no published rating
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Cite this page

Data Center Record, "Data center records in Montgomery County, Maryland", https://datacenterrecord.org/states/md/montgomery-county. Data: Data Center Record, datacenterrecord.org, CC BY 4.0.

The structured rows are CC BY 4.0. Link to this page; that is what turns a reuse into a citation. Prose stays under copyright.

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The rows here are part of the Maryland export. Know of a filing, docket or project in Montgomery County that is missing? Send a tip.

For researchers
Place id
us/md/montgomery-county
Level
county
Census GEOID
Not disclosed
Rating value
red