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Henry Borden

Hydro power plant in Sao Paulo, Brazil. Approximate location -23.8753, -46.4486.

HydroSao PauloBrazilrun-of-river

Henry Borden is a 889 MW hydro power station in Sao Paulo, Brazil. It is operated by Empresa Metropolitana de Águas e Energia SA [100%]. Based on its capacity (estimated), it can supply roughly 890k homes (estimated). It ranks #62 of 2,572 Brazil power plants by installed capacity. Commissioned in 1926, it is around 100 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 51.8% of Brazil's electricity; the national grid averages 110 gCO₂/kWh (88.7% low-carbon) (2025).

889Source-backed capacity
890,016homes powered (est.)
1926commissioned (~100 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id BRA0001084.

Data status

Known data

FacilityHenry Borden WRI
CountryBrazil · Sao Paulo WRI
Coordinates-23.8753, -46.4486 WRI
FuelHydro WRI
MW installed capacity889 MW WRI source record; scope not independently normalised
OwnerEmpresa Metropolitana de Águas e Energia SA [100%] WRI
Commissioned1926 WRI
Technologyrun-of-river WRI

Calculated from dataset

Capacity rank in country#62 of 2572 calculated
Fuel-specific rank in country#31 of 701 calculated
Capacity vs country/fuel peers77.30× · 12 MW median · 701 peers calculated
Homes-powered equivalent890,016 calculated
Climate21.8°C · HDD 0 derived from coordinates
Environmental severityC5 · 45/100 derived from coordinates

Not available

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 L100000600266); fuel: WRI source-record fuel

In context: how this plant compares

At 889 MW, Henry Borden is well above the median hydro plant in Brazil (12 MW). Technically it is described as run-of-river. 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 Brazil

Belo Monte: 11,233 MW11kBelo MonteTucuruí: 8,535 MW9kTucuruíItaipu (Parte Brasileira): 7,000 MW7kItaipu (Pa…Jirau: 3,750 MW4kJirauSanto Antônio: 3,568 MW4kSanto Antô…Ilha Solteira: 3,444 MW3kIlha Solte…Xingó: 3,162 MW3kXingóPaulo Afonso IV: 2,462 MW2kPaulo Afon…

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

Owner

Operated by Empresa Metropolitana de Águas e Energia SA [100%].

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a humid subtropical climate (Köppen Cfa) — Southern Hemisphere, latitude 23.9°S — which shapes how much energy it can produce and how its output varies through the year.

21.8°Cannual mean temp
0heating degree-days (base 18°C)
1,385cooling degree-days (base 18°C)
115 melevation

Monthly mean temperature

J: 25 °CJF: 25 °CFM: 24 °CMA: 22 °CAM: 20 °CMJ: 19 °CJJ: 18 °CJA: 19 °CAS: 20 °CSO: 21 °CON: 22 °CND: 24 °CD25 °C

This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.

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)
45/100environmental-severity index
6.8°Cseasonal temperature swing
33 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 #31 largest hydro power plant of 701 in Brazil by capacity.

Brazil has 701 hydro power plants in this dataset, together about 105,987 MW of capacity.

Nearby power plants

Location

Coordinates -23.8753, -46.4486 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Henry Borden?

Henry Borden is a 889 MW source-record hydro power plant in Sao Paulo, Brazil, commissioned in 1926.

How many homes can Henry Borden power?

Its output is enough to supply roughly 890,016 homes (estimated).

Who operates Henry Borden?

Henry Borden is operated by Empresa Metropolitana de Águas e Energia SA [100%].

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