Qarn Alam power plant is a 523 MW gas power station in Ad Dakhiliyah, Oman. It is operated by Petroleum Development Oman LLC [100%]. Based on its capacity (estimated), it can supply roughly 589k homes (estimated). It ranks #11 of 32 Oman power plants by installed capacity. Commissioned in 2004, it is around 22 years old — relatively modern. In context, gas supplies about 91.9% of Oman's electricity; the national grid averages 544 gCO₂/kWh (4.5% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id GOGPT_qarnalam_oman.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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 · 2026 · L100000405515; fuel: GEM GOGPT
At 523 MW, Qarn Alam power plant is well above the median gas plant in Oman (445 MW). Technically it is described as OCGT. 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.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Petroleum Development Oman LLC [100%].
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a hot desert climate (Köppen BWh) — Northern Hemisphere, latitude 21.3°N — which shapes how much energy it can produce and how its output varies through the year.
Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
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.
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.
The #9 largest gas power plant of 26 in Oman by capacity.
Oman has 26 gas power plants in this dataset, together about 14,120 MW of capacity.
Coordinates 21.297364, 57.098022 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Qarn Alam power plant is a 523 MW gas power plant in Ad Dakhiliyah, Oman, commissioned in 2004.
Its output is enough to supply roughly 589,047 homes (estimated).
Qarn Alam power plant is operated by Petroleum Development Oman LLC [100%].
