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Signal Hill Generating LLC

Gas power plant in Texas, United States of America. Approximate location 33.8625, -98.5894.

GasTexasUnited States of AmericaCCGT · HRSGCO₂ modelled

Signal Hill Generating LLC is a 80 MW gas power plant in Texas, United States of America. It is operated by Signal Hill Generating LLC. Based on reported annual generation of 15 GWh, it can supply roughly 4.2k homes. It ranks #3132 of 10,938 United States of America power plants by installed capacity. Commissioned in 1987, it is around 39 years old — long-established. Its modelled annual emissions are 83,033 t CO₂/yr (Climate TRACE), equivalent to about 19k cars driven for a year. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

80Source-backed capacity
1HRSG unit(s)
15GWh reported / yr
4,200homes powered
83,033t CO₂ / yr (Climate TRACE)
1987commissioned (~39 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0050127.

Data status

Known data

FacilitySignal Hill Generating LLC WRI
CountryUnited States of America · Texas WRI
Coordinates33.8625, -98.5894 WRI
FuelGas WRI
MW installed capacity80 MW WRI source record; scope not independently normalised
OwnerSignal Hill Generating LLC WRI
Commissioned1987 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr15 GWh/yr WRI

Modelled source data

CO₂ emissions83,033 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#3132 of 10938 calculated
Fuel-specific rank in country#1229 of 2165 calculated
Capacity vs country/fuel peers0.66× · 121 MW median · 2165 peers calculated
Homes-powered equivalent4,200 calculated from reported generation
Climate17.4°C · HDD 1,441 derived from coordinates
Environmental severityC3 · 39/100 derived from coordinates

Not available

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 L100000402484); fuel: WRI source-record fuel

In context: how this plant compares

At 80 MW, Signal Hill Generating LLC is below the median gas plant in United States of America (121 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

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

~83,033 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

19kpassenger cars driven for a year
11khomes' yearly energy use
1.4 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Reported generation trend

2013: 20 GWh20132014: 4 GWh20142015: 5 GWh20152016: 4 GWh20162017: 0 GWh20172018: 19 GWh20182019: 15 GWh201920 GWh

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

Owner

Operated by Signal Hill Generating LLC.

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 33.9°N — which shapes how much energy it can produce and how its output varies through the year.

17.4°Cannual mean temp
1,441heating degree-days (base 18°C)
1,251cooling degree-days (base 18°C)
307 melevation

Monthly mean temperature

J: 5 °CJF: 8 °CFM: 12 °CMA: 17 °CAM: 22 °CMJ: 26 °CJJ: 29 °CJA: 29 °CAS: 24 °CSO: 18 °CON: 11 °CND: 6 °CD29 °C

Heating degree-days here run 41% 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: 33/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~2% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
39/100environmental-severity index
24.3°Cseasonal temperature swing
614 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 #1229 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 33.8625, -98.5894 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Signal Hill Generating LLC?

Signal Hill Generating LLC is a 80 MW source-record gas power plant in Texas, United States of America, commissioned in 1987.

How much electricity does Signal Hill Generating LLC generate?

Signal Hill Generating LLC generates about 15 GWh of electricity per year.

How many homes can Signal Hill Generating LLC power?

Its output is enough to supply roughly 4,200 homes.

Who operates Signal Hill Generating LLC?

Signal Hill Generating LLC is operated by Signal Hill Generating LLC.

How much CO₂ does Signal Hill Generating LLC emit?

Signal Hill Generating LLC has modelled emissions of about 83,033 tonnes of CO₂ per year (Climate TRACE).

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