Hilton Head

Oil power plant in South Carolina, United States of America. Approximate location 32.2089, -80.6988.

OilSouth CarolinaUnited States of AmericaOCGTCO₂ modelled

Hilton Head is a 118 MW oil power station in South Carolina, United States of America. It is operated by South Carolina Public Service Authority. Based on reported annual generation of 0 GWh, it can supply roughly 57 homes. It ranks #2607 of 10,938 United States of America power plants by installed capacity. Commissioned in 1976, it is around 50 years old — long-established. Its modelled annual emissions are 77,438 t CO₂/yr (Climate TRACE), equivalent to about 18k cars driven for a year. In context, oil supplies about 0.7% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

118Source-backed capacity
0GWh reported / yr
57homes powered
77,438t CO₂ / yr (Climate TRACE)
1976commissioned (~50 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0003318.

Data status

Known data

FacilityHilton Head WRI
CountryUnited States of America · South Carolina WRI
Coordinates32.2089, -80.6988 WRI
FuelOil WRI
MW installed capacity118 MW WRI source record; scope not independently normalised
OwnerSouth Carolina Public Service Authority WRI
Commissioned1976 WRI
TechnologyOCGT WRI
GWh reported / yr0 GWh/yr WRI

Modelled source data

CO₂ emissions77,438 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#2607 of 10938 calculated
Fuel-specific rank in country#58 of 902 calculated
Capacity vs country/fuel peers16.38× · 7 MW median · 902 peers calculated
Homes-powered equivalent57 calculated from reported generation
Climate18.9°C · HDD 851 derived from coordinates
Environmental severityC5 · 53/100 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.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 65 MW for Hilton Head power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: B_SCOPE_PARENT_COMPLEX - recommended action: build_parent_complex_model - confidence: not_comparable_without_scope. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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: Wikidata P2109 nameplate capacity; fuel: WRI source-record fuel

In context: how this plant compares

At 118 MW, Hilton Head is well above the median oil plant in United States of America (7 MW). Technically it is described as OCGT. Oil-fired plants burn heavy fuel oil or diesel, usually as peaking or backup capacity on islands and grids without gas pipelines; high fuel cost keeps their utilisation low.

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

~77,438 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

18kpassenger cars driven for a year
10khomes' yearly energy use
1.3 milliontree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 0 GWh20132014: 3 GWh20142015: 0 GWh20152016: 0 GWh20162017: 0 GWh20172018: 1 GWh20182019: 0 GWh20193 GWh

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

Owner

Operated by South Carolina Public Service Authority. All plants by this company →

Local climate & thermal context

This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 32.2°N — which shapes how much energy it can produce and how its output varies through the year.

18.9°Cannual mean temp
851heating degree-days (base 18°C)
1,196cooling degree-days (base 18°C)
7 melevation

Monthly mean temperature

J: 10 °CJF: 11 °CFM: 15 °CMA: 18 °CAM: 22 °CMJ: 26 °CJJ: 28 °CJA: 27 °CAS: 25 °CSO: 20 °CON: 15 °CND: 11 °CD28 °C

Heating degree-days here run 65% 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: 25/100 — this site sits in the bottom 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
53/100environmental-severity index
17.9°Cseasonal temperature swing
6 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 #58 largest oil power plant of 902 in United States of America by capacity.

United States of America has 902 oil power plants in this dataset, together about 40,022 MW of capacity.

Nearby power plants

Location

Coordinates 32.2089, -80.6988 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Hilton Head?

Hilton Head is a 118 MW source-record oil power plant in South Carolina, United States of America, commissioned in 1976.

How much electricity does Hilton Head generate?

Hilton Head generates about 0 GWh of electricity per year.

How many homes can Hilton Head power?

Its output is enough to supply roughly 57 homes.

Who operates Hilton Head?

Hilton Head is operated by South Carolina Public Service Authority.

How much CO₂ does Hilton Head emit?

Hilton Head has modelled emissions of about 77,438 tonnes of CO₂ per year (Climate TRACE).

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