Ulaanbaatar-4 Thermal Power Plant is a 570 MW coal power station in Ulaanbaatar, Mongolia. It is operated by Thermal Power Plant-4 SSH Co. Based on its capacity (estimated), it can supply roughly 713k homes (estimated). It ranks #9 of 25 Mongolia power plants by installed capacity. Commissioned in 1984, it is around 42 years old — long-established. In context, coal supplies about 85.8% of Mongolia's electricity; the national grid averages 816 gCO₂/kWh (8.4% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000181.
Data status
Known data
Calculated from dataset
Not available
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 789 MW for Ulaanbaatar-4 power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).
Data provenance
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: WRI GPPD; fuel: WRI GPPD
In context: how this plant compares
At 570 MW, Ulaanbaatar-4 Thermal Power Plant is well above the median coal plant in Mongolia (450 MW). Technically it is described as subcritical. 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.
Key facts
- Share of Mongolia coal capacity
- 4.5% of 12,669 MW across 20 plants in this dataset
- Age among peers
- 1 of 12 dated coal plants in Mongolia is older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest coal plants in Mongolia
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Thermal Power Plant-4 SSH Co.
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 47.9°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 198% above 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: 100/100 — this site sits in the top 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
This site sits in a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with thermal cycling the leading environmental stress.
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 #9 largest coal power plant of 20 in Mongolia by capacity.
Mongolia has 20 coal power plants in this dataset, together about 12,669 MW of capacity.
Nearby power plants
- Ulaanbaatar-3 Thermal Power Plant · Coal · 198 MW · Ulaanbaatar
- Khushight Kundi · Solar · 15 MW · Central Aimak
- New Century City power station · Coal · 250 MW · Töv
- Bayan power station · Coal · 660 MW · Töv
- Buuruljuut power station · Coal · 600 MW · Töv
- Baganuur power station · Coal · 400 MW · Govisümber
Location
Coordinates 47.8938, 106.8036 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Ulaanbaatar-4 Thermal Power Plant?
Ulaanbaatar-4 Thermal Power Plant is a 570 MW coal power plant in Ulaanbaatar, Mongolia, commissioned in 1984.
Who operates Ulaanbaatar-4 Thermal Power Plant?
Ulaanbaatar-4 Thermal Power Plant is operated by Thermal Power Plant-4 SSH Co.