HPP Stejaru is a 208 MW hydro power station in Neamt, Romania. It is operated by SC Hidroelectrica [100%]. Based on its capacity (estimated), it can supply roughly 208k homes (estimated). It ranks #32 of 97 Romania power plants by installed capacity. Commissioned in 1960, it is around 66 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 24.3% of Romania's electricity; the national grid averages 251 gCO₂/kWh (67.5% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1019114.
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 151 MW for Stejaru hydroelectric plant, 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 208 MW, HPP Stejaru is around the median hydro plant in Romania (219 MW). Technically it is described as conventional storage. Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Romania hydro capacity
- 6.2% of 3,328 MW across 10 plants in this dataset
- Age among peers
- 0 of 9 dated hydro plants in Romania are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest hydro plants in Romania
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by SC Hidroelectrica [100%].
Local climate & thermal context
This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 46.9°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 61% 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: 84/100 — 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness 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 #7 largest hydro power plant of 10 in Romania by capacity.
Romania has 10 hydro power plants in this dataset, together about 3,328 MW of capacity.
Nearby power plants
- Bacau CHP power station · Coal · 60 MW · Bacău
- Suceava power station · Coal · 100 MW · Suceava
- Borzesti power station · Gas · 189 MW · Bacau
- Hefaistos power station · Gas · 500 MW · Mures
- Hydropower Plant CHE-Costesti · Hydro · 16 MW · Botosani
- Brasov power station · Coal · 130 MW · Brașov
Location
Coordinates 46.9386, 26.1029 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is HPP Stejaru?
HPP Stejaru is a 208 MW hydro power plant in Neamt, Romania, commissioned in 1960.
Who operates HPP Stejaru?
HPP Stejaru is operated by SC Hidroelectrica [100%].