Loudoun County, Virginia
Loudoun County, Virginia has 18 GW of data centers on record, planned to operating, across 318 records, against 812 MW of generation operating inside the county. The queue adds 1.8 GW of planned generation across 13 projects, 2 of them past their listed in-service date.
Loudoun County and its neighbors
Counties shaded by data center MW on record, planned to operating. 3 of its 4 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
more data center MW than operating generation in the county. Loudoun County's own plants cover 4.5% of the load on record, and the planned pipeline adds 1.8 GW.
Data centers by status
318 records, 18 GW
The data center pipeline
256 records list a year online or expected, from 1998 to 2032. The largest expected additions are 2.4 GW listed for 2026 and 2.1 GW for 2027. 62 records list no year.
Data center MW by year online or expected
Records not cancelled, by listed year. 2026 onward is planned or under construction.
View as table
| Year | Records | MW |
|---|---|---|
| 1998 | 1 | 7 |
| 1999 | 1 | 6 |
| 2000 | 4 | 45 |
| 2001 | 3 | 38 |
| 2002 | 0 | 0 |
| 2003 | 1 | 4 |
| 2004 | 0 | 0 |
| 2005 | 1 | 12 |
| 2006 | 2 | 39 |
| 2007 | 2 | 76 |
| 2008 | 3 | 39 |
| 2009 | 3 | 82 |
| 2010 | 4 | 111 |
| 2011 | 2 | 85 |
| 2012 | 5 | 229 |
| 2013 | 2 | 55 |
| 2014 | 6 | 248 |
| 2015 | 9 | 249 |
| 2016 | 4 | 164 |
| 2017 | 9 | 374 |
| 2018 | 9 | 413 |
| 2019 | 17 | 1,192 |
| 2020 | 12 | 775 |
| 2021 | 14 | 890 |
| 2022 | 11 | 579 |
| 2023 | 21 | 1,148 |
| 2024 | 10 | 474 |
| 2025 | 20 | 1,542 |
| 2026 | 32 | 2,424 |
| 2027 | 24 | 2,097 |
| 2028 | 16 | 1,329 |
| 2029 | 4 | 213 |
| 2030 | 0 | 0 |
| 2031 | 2 | 213 |
| 2032 | 2 | 177 |
Who is building in Loudoun
Data center developers by MW on record. Top 6 of 55.
View as table
| Developer | Sites | MW |
|---|---|---|
| Amazon | 99 | 4,990 |
| Digital Realty | 36 | 2,721 |
| CloudHQ | 13 | 1,868 |
| Active Infrastructure | 1 | 780 |
| Vantage Data Centers | 14 | 767 |
| CyrusOne | 13 | 652 |
Power generation in the county
3 plants operate inside Loudoun County, 812 MW of natural gas. The queue adds 1.8 GW across 13 projects, and 2 of them are past their listed in-service date.
Operating and planned generation by technology
MW in Loudoun County
View as table
| Technology | Status | Projects | MW |
|---|---|---|---|
| Battery Storage | Planned | 11 | 1,630 |
| Natural Gas | Operating | 3 | 812 |
| Solar | Planned | 2 | 200 |
Planned generation by listed in-service year
MW. Years before 2026 are past due. 1 planned project lists no date and is left out.
View as table
| Year | Planned projects | MW |
|---|---|---|
| 2022 | 1 | 20 |
| 2023 | 1 | 150 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 4 | 270 |
| 2027 | 2 | 270 |
| 2028 | 2 | 250 |
| 2029 | 2 | 445 |
Loudoun County against its neighbors
Prince William County has the most data center MW among the neighbors, 8.2 GW, 45% of Loudoun County's. 1 of the 3 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 |
|---|---|---|---|---|---|
| Loudoun County this page | 318 | 1,830 | 22.2x | ||
| Prince William County | 165 | 1,666 | 10.4x | ||
| Fairfax County | 50 | 0 | 14.4x | ||
| Fauquier County | 11 | 1,962 | 0.42x |
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.
4 counties shownWhat changed since June 4, 2026
4 projects in Loudoun County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.
Every change in Loudoun County
Project, what changed, technology, MW and the dates that moved, for all 4 changes.
| 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 Loudoun County
Campus or project name, developer, status, MW, year and the developer’s contacts, for all 334 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 Loudoun County
We email you when a data center or power project in Loudoun 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 Loudoun County.
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