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Microsoft TRP3 (SAT46)

OperatingHyperscaleBuildingMedina County, Texas

Part of Microsoft SAT40

20% profile completeness
15 claims from 6 sources
Current facility power
Not yet sourced
Planned capacity
Not yet sourced
Building footprint
229,700 sq ft[1]
Likelyderived
Buildings (planned)
Not yet sourced
Capital cost / investment
Not yet sourced
First operational
Not yet sourced

POWER & GRID

Time-to-power · verification · interconnection
Time to power
Operating (community-mapped, unverified)
Low confidence
Project verification
Unverified
Evidence is limited to community map.
Current stage
Operational
Furthest stage with documented evidence
Utility · ISO
Medina Electric Coop, INC · ERCOT
Substation: Rafter Substation (138 kV) (nearest, unverified)

Power reality

Announced
No record
Interconnection request
No record
Contracted / approved
No record
Under construction
No record
Operational
No record
AI evidence brief
Summarizes only the evidence on this page. Answers citing anything else are rejected automatically.

Project verification

Development
  1. Announcedimplied by a later stage
  2. Land acquiredimplied by a later stage
  3. Planning / zoningimplied by a later stage
  4. Permittingimplied by a later stage
Grid interconnection
  1. Interconnection application
  2. Feasibility study
  3. System impact study
  4. Facilities study
  5. Interconnection agreement / service contract
Build & energization
  1. Financing
  2. Under constructionimplied by a later stage
  3. Energizationimplied by a later stage
  4. OperationalSep 27, 2026
    Community map
    • Sep 27, 2026 · Reported status: operating[1]

● documented · ◌ implied by a later stage · ○ no evidence found. Dates are those of the earliest dated evidence, which can be later than when a stage actually began. Evidence classes: Community map.

Grid path

  1. facility
    Microsoft TRP3 (SAT46)
  2. substation
    Rafter Substation (138 kV)[1]
    Proximity onlyUnverified
    Nearest mapped substation, 0.41 km away. Proximity does not establish that it serves the site.
  3. transmission
    138 kV line[1]
    Proximity onlyUnverified
    Highest-voltage line mapped within 2 km (0.29 km away). Not confirmed as the supply path.
  4. utility
    Medina Electric Coop, INC[2]
    Service territoryLikely
    Retail service territory containing the site
  5. ISO / RTO
    ERCOT[3]
    Service territoryLikely
    Balancing authority: ERCO
Substation capacity:
not published
Required upgrades:
not yet sourced
Congestion:
not yet sourced (no nodal price data)

Dashed boxes are based on proximity only and do not establish which asset serves the site.

Interconnection records

No interconnection-queue record is linked to this site. Of the ISOs we ingest, only NYISO publishes large-load requests; PJM, ERCOT, MISO, SPP and CAISO queues list generation only.

On-site & dedicated generation

No on-site, behind-the-meter or dedicated generation found in sources.

Location & imagery

Mapped outline
Coordinates
29.41298, -98.80637
County
Medina County
Photographs

No openly licensed ground-level photos matched to this site yet.

Ownership, operation & customers

  1. 1. Property owner of record
    Not identified
  2. 2. Owner / developer
    Not identified
  3. 3. Operator
    Microsoft[1]Likely
  4. 4. Tenant / cloud
    Not identified
  5. 5. End customer / workload
    Not identified
Power supply
Utility:
Medina Electric Coop, INC(unreviewed)[2]Unverified

Each link is sourced separately. The property owner of record is often a special-purpose entity; the same company appearing in two roles is shown only when sources say so.

All parties with evidence
Operator
Utility
Medina Electric Coop, INC(unreviewed)[2]Unverified

Most likely retail provider among 4 overlapping service territories (largest retail sales; territory polygons are approximate). Also overlapping: Karnes Electric Coop INC, Bandera Electric Coop, INC, AEP Texas Central Company.

No tenants or end users identified in our sources yet.

Power (all fields)

Current facility power
Not yet sourced
Planned capacity
Not yet sourced

Capacity figures are nameplate or contracted; annual consumption is a labeled model estimate, not metered data.

Grid & electricity

ISO / RTO
ERCOT[3]Likelyderived

Location falls inside this ISO/RTO footprint.

Balancing authority
ERCO[2]Likelyderived

Control area of the containing utility territory.

Nearest mapped substation
Rafter Substation (138 kV)[1]Likelyderived

Nearest substation mapped in OpenStreetMap; proximity does not establish which substation serves the site.

Distance to substation
0.4 km[1]Likelyderived
Highest-voltage line nearby
138 kV[1]Likelyderived

Highest-voltage transmission line mapped within 2 km.

State avg. industrial price
7.07¢/kWh[5]Confirmed

Texas statewide average, July 2026.

State avg. commercial price
8.47¢/kWh[5]Confirmed

Texas statewide average, July 2026.

Generation within 50 km
4.1 GW[6]Confirmedderived

19 EIA-reported plants within 50 km.

Generation queued in county
956 MW[4]Confirmedderived

7 active generation interconnection requests in Medina County: Storage 745 MW, Solar 211 MW. Queued projects often don't get built.

Interconnection status
Not yet sourced
Contracted / committed power
Not yet sourced
Nearby infrastructureTypeDistanceVoltage / capacitySource
138 kV lineTransmission line0.29 km138 kV[1]
Leon Creek · City of San Antonio - (TX)Power plant (Natural Gas)23.3 km184 MW[6]
Oci Alamo Solar I Hybrid · OCI Energy LLCPower plant (Solar)38.4 km41 MW[6]
Blue Wing Solar Energy Generation · Duke Energy Renewables ServicesPower plant (Solar)41.2 km14 MW[6]
Arthur Von Rosenberg · City of San Antonio - (TX)Power plant (Natural Gas)44.5 km518 MW[6]
V H Braunig · City of San Antonio - (TX)Power plant (Natural Gas)44.6 km1.05 GW[6]
O W Sommers · City of San Antonio - (TX)Power plant (Natural Gas)48.2 km830 MW[6]
J K Spruce · City of San Antonio - (TX)Power plant (Coal)48.5 km1.35 GW[6]
Oci Alamo 4, LLC · Consolidated Edison Development Inc.Power plant (Solar)49.7 km40 MW[6]
Rafter Substation · CPS EnergySubstation0.41 km138 kV[1]
CPS Energy substation · CPS EnergySubstation1.83 km138 kV[1]
Texas Research Substation · CPS EnergySubstation1.99 km138 kV[1]
Largest queued generation in this countyFuelQueue statusMWSource
Devine Mary BESSERCOT 28INR0392 · Devine Mary BESSStorageIn study · proposed 2028-11201 MW[4]
Chacon CreekERCOT 27INR0206 · Cattlemen BESS LLCStorageIn study · proposed 2027-10189 MW[4]
Ranger BESSERCOT 29INR0152 · Nova Clean Energy LLCStorageIn study · proposed 2029-04155 MW[4]
Dunlay SolarERCOT 27INR0203 · Medina PV, LLCSolarIn study · proposed 2030-12151 MW[4]
Hondo Arroyo StorageERCOT 27INR0437 · Hondo Creek Solar, LLCStorageIn study · proposed 2028-07101 MW[4]
Adam Bryant BESSERCOT 25INR0610 · Adam Bryant BESS LLCStorageIn study · proposed 2027-12100 MW[4]

Utility, ISO and nearby assets are derived from the site's location. Proximity to a substation or line doesn't establish the interconnection; that needs a utility filing or interconnection-queue record. Queue requests are applications, not commitments — most never reach operation.

Construction & permitting

  1. Announced
    —
  2. Land acquired
    —
  3. Permitting
    —
  4. Construction start
    —
  5. First operational
    —
  6. Expected completion
    —

Real estate

Official assessments
Assessor's value for a tax year

None sourced yet

Recorded transactions
Sale prices from recorded deeds

None sourced yet

Model estimates
Our model — not an appraisal

None sourced yet

Annual property tax
Not yet sourced

No county parcel or assessor records linked yet. County records are currently ingested for Loudoun County, VA and Maricopa County, AZ.

Size

Building footprint
229,700 sq ft[1]Likelyderived

Computed from the mapped OSM building outline.

Floor area
Not yet sourced

What changed (last 3 years)

Follow this facility (RSS)

No tracked changes yet. Values are recorded on every data refresh, so changes will appear here over time.

Timeline

No dated events sourced yet.

Other buildings on this campus

7

All claims (provenance audit)

15
FieldValueSourceConfidenceAs ofStatus
NameMicrosoft TRP3 (SAT46)way/1010260675 name=Microsoft TRP3 (SAT46)[1] Likely2026-09-27Shown
StatusOperating[1] derivedUnverified2026-09-27Shown
Facility typeHyperscale[1] derivedUnverified2026-09-27Shown
OperatorMicrosoftoperator=Microsoft[1] Likely2026-09-27Shown
UtilityMedina Electric Coop, INCterritory 12268: MEDINA ELECTRIC COOP, INC (COOPERATIVE, MEDINA ELECTRIC COOP, I[2] derivedUnverified2022Shown
ISO / RTOERCOTELECTRIC RELIABILITY COUNCIL OF TEXAS, INC.[3] derivedLikely—Shown
Balancing authorityERCO[2] derivedLikely—Shown
Nearest mapped substationRafter Substation (138 kV)way/639176169[1] derivedLikely2026-09-28Shown
Distance to substation0.4 km[1] derivedLikely2026-09-28Shown
Highest-voltage line nearby138 kV[1] derivedLikely2026-09-28Shown
Generation queued in county956 MW[4] derivedConfirmed2026-09-01Shown
State avg. industrial price7.07¢/kWh[5] Confirmed2026-07Shown
State avg. commercial price8.47¢/kWh[5] Confirmed2026-07Shown
Generation within 50 km4.1 GW[6] derivedConfirmed202502Shown
Building footprint229,700 sq ft[1] derivedLikely2026-09-27Shown