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Arapahoe Combustion Turbine Project — Power plant · Gas, combined cycle · SWG Arapahoe, LLCINTELISHIFT US LLC - DENVER DATA CENTER — Built · Large load · CO · 2.2 mi awayCORESITE - DE1 — Built · Large load · CO · 5.3 mi awayIRON MOUNTAIN DATA CENTERS - FORTRUST — Built · Large load · CO · 7.7 mi awayVISA USA - O.C.C. DATA CENTER CAMPUS — Built · Large load · CO · 7.9 mi awayFLEXENTIAL - DEN03 DATA CENTER — Large load · CO · 8.1 mi awayCORESITE REAL ESTATE DE3 - CORESITE DE3 — Built · Large load · CO · 8.3 mi awayNISSAN N. AMERICA - NISSAN DATA CENTER — Built · Large load · CO · 9.7 mi awayCrane DataBank — Built · Large load · CO · 9.8 mi awayFlexential -Denver -Centennial Data Center — Filed · Large load · CO · 9.9 mi awayEQUINIX DATA CENTER — Filed · Large load · CO · 10.7 mi awayTING FIBER DATA CENTER — Built · Large load · CO · 11.1 mi awayLOCKHEED MARTIN - DENVER DATA CENTER — Built · Large load · CO · 11.3 mi awayFLEXENTIAL CORP - COMPARK DATA CENTER — Built · Large load · CO · 11.5 mi awayONENECK IT-DENVER DATA CENTER — Built · Large load · CO · 11.7 mi awayWaterton Solar I — Under construction · Solar · CO · 4 MW · 12.2 mi awayWaterton Solar II — Under construction · Solar · CO · 4 MW · 12.2 mi awayAMAZON DATA SERVICES - DEN-22 — Built · Large load · CO · 12.4 mi awayFlexential DEN 12 Data Center - Parker — Filed · Large load · CO · 12.6 mi awayAPA060 - Phase 5 MDC (Aurora data centre) — Built · Large load · CO · 13.5 mi awaySAMARITANS PURSE DATA CENTER — Built · Large load · CO · 14.0 mi away
  • Combustion
  • Wind & solar
  • Loads
  • In development
  • Under construction
  • Operating
  • Stage not stated
  • Size not stated
  • 10 · 100 · 1,000 MW

Arapahoe Combustion Turbine Project

Power plant · Gas, combined cycle

Key facts

Power plant · Gas, combined cycleran 18% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
2000
Net generation, 2025
310,442 MWh
Grid
115 kV to Public Service Co of Colorado (PSCO)
Location
Denver County, Colorado

Output

Net generation MWh by year, 2001 to 2026
Fuel burned MMBtu by year, 2001 to 2026
  • Gas

Operations detail

Details

Who’s behind it

Owner
Southwest Generation Operating CO LLC

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Technology
Gas, combined cycle source: “Natural Gas Fired Combined Cycle”
Age
26 years since 2000
Unused energy
1,389 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
Heat rate
9,021 Btu/kWh 2025
All 7 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Grid
Nerc region
WECC
Report year
2025
Grid voltage kv
115
Transmission owner
Public Service Co of Colorado
Balancing authority code
PSCO
Balancing authority name
Public Service Company of Colorado
EPA greenhouse gas reporting (GHGRP)
EPA FRS ID
110000467129
Subparts reported
C, D
NAICS code
221112
Subpart PP (CO2 supply)
No
Subpart RR (geologic sequestration)
No
Subpart UU (CO2 injection)
No
Reporting year
2023
GHGRP facility ID
1001360
Fuel burned (MMBtu), 20252,800,565
Capacity factor, 20250.183
Heat rate (Btu/kWh), 20259,021.2
Net generation (MWh), 2025310,442
Balancing authority codePSCO

Ownership

2 companies2
CompanyRoleShareAs ofSource
SWG Arapahoe, LLC Operator EIA-860M
SOUTHWEST GENERATION OPERATING CO LLC Owner 100.0% Dec 31, 2023 EPA GHGRP

Timeline

  • In service · EIA-860M

Around this plant

Nearby

within 15 mi
ProjectKindAwayMW
INTELISHIFT US LLC - DENVER DATA CENTER Built Large load 2.2 mi
CORESITE - DE1 Built Large load 5.3 mi
IRON MOUNTAIN DATA CENTERS - FORTRUST Built Large load 7.7 mi
VISA USA - O.C.C. DATA CENTER CAMPUS Built Large load 7.9 mi
FLEXENTIAL - DEN03 DATA CENTER Unknown Large load 8.1 mi
CORESITE REAL ESTATE DE3 - CORESITE DE3 Built Large load 8.3 mi
NISSAN N. AMERICA - NISSAN DATA CENTER Built Large load 9.7 mi
Crane DataBank Built Large load 9.8 mi
Flexential -Denver -Centennial Data Center Filed Large load 9.9 mi
EQUINIX DATA CENTER Filed Large load 10.7 mi
TING FIBER DATA CENTER Built Large load 11.1 mi
LOCKHEED MARTIN - DENVER DATA CENTER Built Large load 11.3 mi
FLEXENTIAL CORP - COMPARK DATA CENTER Built Large load 11.5 mi
ONENECK IT-DENVER DATA CENTER Built Large load 11.7 mi
Waterton Solar I Under construction Solar 12.2 mi 4
Waterton Solar II Under construction Solar 12.2 mi 4
AMAZON DATA SERVICES - DEN-22 Built Large load 12.4 mi
Flexential DEN 12 Data Center - Parker Filed Large load 12.6 mi
APA060 - Phase 5 MDC (Aurora data centre) Built Large load 13.5 mi
SAMARITANS PURSE DATA CENTER Built Large load 14.0 mi

Sources EPA ICIS-Air · FAA OE/AAA · EPA ICIS-NPDES · EIA-860M

Sources

Attribution