Tolk

Coal power plant in Texas, United States of America. Approximate location 34.1865, -102.57.

CoalTexasUnited States of AmericaPre ConstructionCO₂ measured

Tolk is a 1,136 MW coal power station in Texas, United States of America. It is operated by Southwestern Public Service Co. Based on reported annual generation of 2,742 GWh, it can supply roughly 783k homes. It ranks #572 of 10,938 United States of America power plants by installed capacity. Its annual emissions of 2,831,312 t CO₂/yr (US EPA GHGRP) are equivalent to about 660k cars driven for a year. In context, coal supplies about 16.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

1,136Source-backed capacity
2,742GWh reported / yr
783,371homes powered
2,831,312t CO₂ / yr (US EPA GHGRP)
1983Pre Construction year

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0006194.

Data status

Known data

FacilityTolk WRI
CountryUnited States of America · Texas WRI
Coordinates34.1865, -102.57 WRI
FuelCoal WRI
MW installed capacity1,136 MW WRI source record; scope not independently normalised
OwnerSouthwestern Public Service Co WRI
Commissioned1983 WRI
GWh reported / yr2,742 GWh/yr WRI
CO₂ emissions2,831,312 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#572 of 10938 calculated
Fuel-specific rank in country#215 of 802 calculated
Capacity vs country/fuel peers2.04× · 558 MW median · 802 peers calculated
Homes-powered equivalent783,371 calculated from reported generation
Climate14.1°C · HDD 2,088 derived from coordinates
Environmental severityC1 · 39/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000104215); fuel: WRI source-record fuel

In context: how this plant compares

At 1,136 MW, Tolk is well above the median coal plant in United States of America (558 MW). Its current lifecycle status is “pre construction” — so it is not yet, or no longer, generating at full output. Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

2,831,312 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

660kpassenger cars driven for a year
369khomes' yearly energy use
47 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2013: 0 GWh20132014: 0 GWh20142015: 6,488 GWh20152016: 5,689 GWh20162017: 5,172 GWh20172018: 3,810 GWh20182019: 2,742 GWh20196k GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Southwestern Public Service Co. All plants by this company →

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 34.2°N — which shapes how much energy it can produce and how its output varies through the year.

14.1°Cannual mean temp
2,088heating degree-days (base 18°C)
672cooling degree-days (base 18°C)
1,114 melevation

Monthly mean temperature

J: 3 °CJF: 5 °CFM: 9 °CMA: 14 °CAM: 19 °CMJ: 24 °CJJ: 25 °CJA: 24 °CAS: 20 °CSO: 15 °CON: 8 °CND: 4 °CD25 °C

Heating degree-days here run 15% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 44/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
39/100environmental-severity index
22.4°Cseasonal temperature swing
854 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #215 largest coal power plant of 802 in United States of America by capacity.

United States of America has 802 coal power plants in this dataset, together about 621,194 MW of capacity.

Nearby power plants

Location

Coordinates 34.1865, -102.57 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Tolk?

Tolk is a 1,136 MW source-record coal power plant in Texas, United States of America, planned/announced for 1983.

How much electricity does Tolk generate?

Tolk generates about 2,742 GWh of electricity per year.

How many homes can Tolk power?

Its output is enough to supply roughly 783,371 homes.

Who operates Tolk?

Tolk is operated by Southwestern Public Service Co.

How much CO₂ does Tolk emit?

Tolk has measured emissions of about 2,831,312 tonnes of CO₂ per year (US EPA GHGRP).

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