Release 2026-10-02

Name: US Data Center Directory, release 2026-10-02
Creator: Malachi.Energy
Published: 2026-10-02

Dataset version 2026-10-02 · Snapshot 2026-10-02 · Method v4 · Files never change

Maintained and reviewed by Malachi Rein, LEED AP BD+C · Superseded by 2026-10-03

Frozen release 2026-10-02 of the Malachi.Energy US Data Center Directory: 54 tracked mega projects (109,198 MW planned), 1,771 OSM-verified facilities across 48 jurisdictions, and state estimates reconciled to 5,274. Files with SHA-256 checksums, data dictionary, method version 4, and changelog.

Files

Files in release 2026-10-02 with size, row count, license, and SHA-256
File	Rows	Size	License	SHA-256
mega-projects.csv Tracked US data center mega projects with the basis and confidence of every figure. One row per project, sorted by planned capacity.	54	20 KB	Attribution	938fa2185dc4808498671f412ee6ecae55c972db52e875bdfd7dbaf2c3dd62c3
mega-projects.json The same projects as mega-projects.csv in camelCase, with the project description, the source as an object, national totals split by basis, and the basis dictionary inline.		60 KB	Attribution	e26c2b11ab05b6104f67a132dc4312393a5e9d2c404b16fd7dd153679b8b6279
states.csv Verified and estimated facility counts plus mega project totals for every covered jurisdiction, sorted by verified count.	48	5 KB	Attribution	a0cca1a227361f6b38e89961bf337194d2748786e3f897b6117e36e47157bd25
facilities.csv Every OSM-verified facility in the directory, all jurisdictions in one file. The live site serves this layer per state at /data-centers/<state>/facilities.csv.	1,771	289 KB	ODbL 1.0	ed7c90ced10c7be66cbfffd82524c99f91d64322a88be149cd13cb0820cacd59
README.md Human-readable description of this release: counts, files, data dictionary, method, changes, citation.		10 KB		1a11ba5ece4da48072b063cff7b05c3a0b36874ac0cfe9fcf36a9fae24652493
LICENSE.txt Which license covers which file.		2 KB		9b37dd0adc43cac92bf802ef34ec7c2ad624345f864963916489b334c0835f14
CITATION.bib BibTeX entry for this release.		1 KB		89f738d05fa8e4ccda44a8eb4c76b4b30cbac5ead48bd198d6836f73cd7ac7f5
manifest.json and checksums.sha256 describe the files above; they are not hashed themselves.

Verify a download from the release directory:

curl -sO https://malachi.energy/data-centers/releases/2026-10-02/{mega-projects.csv,mega-projects.json,states.csv,facilities.csv,README.md,LICENSE.txt,CITATION.bib,checksums.sha256}
sha256sum -c checksums.sha256

Cite this release

Rein, Malachi (2026). US Data Center Directory, dataset version 2026-10-02. Malachi.Energy. https://malachi.energy/data-centers/releases/2026-10-02

@misc{malachienergy_data_centers_2026_10_02,
  author = {Rein, Malachi},
  title = {US Data Center Directory},
  howpublished = {Malachi.Energy},
  year = {2026},
  version = {2026-10-02},
  note = {Dataset version 2026-10-02. Facility layer ODbL 1.0 (OpenStreetMap contributors); compilation free with attribution.},
  url = {https://malachi.energy/data-centers/releases/2026-10-02}
}

Same entry as CITATION.bib in the release directory. Cite the release URL, not the hub, when the numbers must not move.

Changes in this version

Meta El Paso investment restated to the developer-stated total development cost, and the Baxtel national and state counts refreshed.

Meta El Paso: investment $10B to $14B (developer-stated campus cost, buildings plus long-lived power, cooling, and connectivity infrastructure), per Meta’s 2026-07-28 release. Capacity stays at 1 GW.
Baxtel national count: 5,207 to 5,274 facilities and 793 to 804 operators, as listed on Baxtel’s United States page on 2026-10-02.
Baxtel state counts: Virginia 786 to 793 and Texas 774 to 779; California is unchanged at 312. State estimates for the other jurisdictions rescale so every estimate still sums to the national count.
The OpenStreetMap layer was not refreshed and no project was added, removed, or moved. Methodology version 4.

Full changelog Previous release 2026-09-25 Next release 2026-10-03

Method version 4

Every OpenStreetMap facility carries an address basis: osm when the address is tagged in OpenStreetMap, address-point when it comes from a public-domain address point inside or beside the building outline (the USDOT National Address Database and public-domain county sources, via Overture Maps), campus when it is the address of an adjacent building on the same campus, and researched when it comes from an operator page or public record. Only public-domain, CC0, or PDDL address points are used, so they can enter the ODbL layer. No address is published without a hand review, and an OpenStreetMap tag always takes precedence. The mega project last_verified_at column now dates the last release in which every project was re-checked, instead of the dataset version. In effect since 2026-09-25.

The reconciliation table and investment split for the current live version are on the hub methodology block. README.md in the release directory carries the text as it stood at snapshot time.

Data dictionary

mega-projects.csv23 columns

Tracked US data center mega projects with the basis and confidence of every figure. One row per project, sorted by planned capacity.

id: Stable slug; also the last segment of the project page URL.
name: Campus or project name as the developer uses it.
developer: Company building or operating the campus.
location: City or county and state, as reported.
state: Two-letter USPS abbreviation.
capacity_mw: Planned power capacity in megawatts. Planned, not delivered.
capacity_basis: What the capacity figure rests on. One of: disclosed, filing, reported, estimated.
investment_usd_billions: Announced investment in USD billions.
investment_basis: What the investment figure measures. One of: campus-capex, first-phase-capex, bond-authorization, power-plant-capex, program-commitment, press-reported, analyst-estimate.
is_estimate: true when capacity is a Malachi.Energy estimate or investment is a third-party analyst estimate.
confidence: high when both figures come from the developer or a filing and the site has physical progress or firm contracts; medium when one figure is reported, estimated, or scoped differently than the campus; low when proposed without permits or capacity is an estimate.
included_in_aggregate: Whether the row counts toward the headline totals. Currently true for every project.
comparable_campus_investment: true when the investment basis is developer-stated campus or first-phase cost, the only bases that measure the same thing.
status: operational (first phase serves load), under-construction, announced, or proposed.
target_year: Developer-stated year for first or full operation. Empty when none is public.
lat: Latitude, WGS84. Precision varies by source; one-decimal values locate a county, not a site.
lon: Longitude, WGS84.
location_basis: How precisely the coordinate locates the campus. One of: site, address, city-centroid, county-centroid. Distance facts count only site and address rows.
source_label: Publisher of the primary public source for the two figures.
source_url: URL of that source.
source_date: Evidence date of the source, ISO, month precision allowed.
last_verified_at: Last release in which every project was re-checked against its source. Trails the dataset version when a release changes only another layer.
url: Project page on malachi.energy.

mega-projects.jsonJSON

The same projects as mega-projects.csv in camelCase, with the project description, the source as an object, national totals split by basis, and the basis dictionary inline.

states.csv10 columns

Verified and estimated facility counts plus mega project totals for every covered jurisdiction, sorted by verified count.

state: Jurisdiction name.
abbr: Two-letter USPS abbreviation.
osm_verified: Facilities tagged as data centers in OpenStreetMap with a mapped location in this jurisdiction.
estimated_total: Estimated facility count: Baxtel state count where Baxtel publishes one, otherwise osm_verified scaled so all jurisdictions sum to the Baxtel national total.
mega_project_count: Tracked mega projects in the jurisdiction.
mega_capacity_mw: Sum of planned capacity across those projects, megawatts.
mega_investment_usd_billions: Sum of announced investment across those projects, all bases mixed.
top_operator: Operator with the most OSM-verified facilities in the jurisdiction.
top_hub: City with the most OSM-verified facilities in the jurisdiction.
url: State page on malachi.energy.

facilities.csv14 columns

Every OSM-verified facility in the directory, all jurisdictions in one file. The live site serves this layer per state at /data-centers/<state>/facilities.csv.

name: Facility name from OpenStreetMap, empty when untagged.
operator: Operator from OpenStreetMap, empty when untagged.
city: City from the OSM address tags, or from the address source where an address_basis column says it is not osm.
state: Two-letter USPS abbreviation, assigned by point-in-polygon against Census boundaries.
address: Street address, empty when none is known. From the OSM tags unless an address_basis column says otherwise.
postcode: Postal code, empty when none is known.
lat: Latitude, WGS84. Centroid for building outlines.
lon: Longitude, WGS84.
website: Website when tagged.
osm_type: node, way, or relation.
osm_id: OpenStreetMap element id.
osm_url: Link to the element on openstreetmap.org.
address_basis: Where the address comes from. One of: osm, address-point, campus, researched. osm is tagged on the element; address-point is a public-domain address point at or near the building (USDOT National Address Database or a public-domain county source, via Overture Maps); campus is the address of an adjacent building on the same campus and can name a neighbour; researched comes from a public source. Every non-osm address was reviewed by hand. Empty when there is no address.
address_source: For non-osm addresses, the dataset release or URL the address comes from. Empty for osm and missing addresses.

Licenses

Two layers, two licenses. facilities.csv and the verified-count columns of states.csv derive from OpenStreetMap contributors and carry the Open Database License (ODbL) 1.0. The mega project files and the state estimates are Malachi.Energy’s compilation, mega project tally and state estimates, free for personal, educational, and editorial use with attribution to Malachi.Energy. The split is spelled out file by file in LICENSE.txt.

Release 2026-10-02, snapshot 2026-10-02. Facility data from OpenStreetMap contributors (ODbL). Mega project data from public filings and announcements. Maintained by Malachi Rein for Malachi.Energy.