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Štěchovice I

Hydro power plant in Central Bohemia, Czech Republic. Approximate location 49.8465, 14.4219.

HydroCentral BohemiaCzech Republic

Štěchovice I is a 22 MW hydro power plant in Central Bohemia, Czech Republic. It is operated by CEZ Group. Based on its capacity (estimated), it can supply roughly 23k homes (estimated). It ranks #54 of 481 Czech Republic power plants by installed capacity. Commissioned in 1944, it is around 82 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 2.3% of Czech Republic's electricity; the national grid averages 401 gCO₂/kWh (59.2% low-carbon) (2025).

22Source-backed capacity
22,525homes powered (est.)
1944commissioned (~82 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1019180.

Data status

Known data

FacilityŠtěchovice I WRI
CountryCzech Republic · Central Bohemia WRI
Coordinates49.8465, 14.4219 WRI
FuelHydro WRI
MW installed capacity22 MW WRI source record; scope not independently normalised
OwnerCEZ Group WRI
Commissioned1944 WRI

Calculated from dataset

Capacity rank in country#54 of 481 calculated
Fuel-specific rank in country#7 of 8 calculated
Capacity vs country/fuel peers0.16× · 144 MW median · 8 peers calculated
Homes-powered equivalent22,525 calculated
Climate8.3°C · HDD 3,518 derived from coordinates
Environmental severityC2 · 26/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

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 L100001023019); fuel: WRI source-record fuel

In context: how this plant compares

At 22 MW, Štěchovice I is below the median hydro plant in Czech Republic (144 MW). 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.

Capacity vs largest hydro plants in Czech Republic

Dlouhé Stráně I: 650 MW650Dlouhé Str…Dalešice: 472 MW472DalešiceOrlík: 360 MW360OrlíkSlapy: 144 MW144SlapyLipno I: 120 MW120Lipno IŠtěchovice II: 45 MW45Štěchovice…Štěchovice I: 22 MW22Štěchovice…Lipno II: 2 MW2Lipno II

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by CEZ Group. All plants by this company →

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 49.8°N — which shapes how much energy it can produce and how its output varies through the year.

8.3°Cannual mean temp
3,518heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
396 melevation

Monthly mean temperature

J: -1 °CJF: 0 °CFM: 4 °CMA: 8 °CAM: 13 °CMJ: 16 °CJJ: 18 °CJA: 18 °CAS: 13 °CSO: 8 °CON: 3 °CND: 0 °CD18 °C

Heating degree-days here run 43% 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: 76/100 — 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

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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
26/100environmental-severity index
19.1°Cseasonal temperature swing
468 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 #7 largest hydro power plant of 8 in Czech Republic by capacity.

Czech Republic has 8 hydro power plants in this dataset, together about 1,815 MW of capacity.

Nearby power plants

Location

Coordinates 49.8465, 14.4219 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Štěchovice I?

Štěchovice I is a 22 MW source-record hydro power plant in Central Bohemia, Czech Republic, commissioned in 1944.

How many homes can Štěchovice I power?

Its output is enough to supply roughly 22,525 homes (estimated).

Who operates Štěchovice I?

Štěchovice I is operated by CEZ Group.

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