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Mampuri-II

Wind power plant in North Western, Sri Lanka. Approximate location 7.9764, 79.7316.

WindNorth WesternSri Lanka

Mampuri-II is a 10 MW wind power plant in North Western, Sri Lanka. It is operated by Senok Wind Energy. Based on its capacity (estimated), it can supply roughly 8.9k homes (estimated). It ranks #40 of 55 Sri Lanka power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 5.4% of Sri Lanka's electricity; the national grid averages 329 gCO₂/kWh (61.6% low-carbon) (2025).

10Source-backed capacity
8,935homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1030396.

Data status

Known data

FacilityMampuri-II WRI
CountrySri Lanka · North Western WRI
Coordinates7.9764, 79.7316 WRI
FuelWind WRI
MW installed capacity10 MW WRI source record; scope not independently normalised
OwnerSenok Wind Energy WRI
Observed long-tail demand62 GSC impressions (mampuri wind power project) Google Search Console

Calculated from dataset

Capacity rank in country#40 of 55 calculated
Fuel-specific rank in country#4 of 14 calculated
Capacity vs country/fuel peers1.00× · 10 MW median · 14 peers calculated
Homes-powered equivalent8,935 calculated
Climate27.8°C · HDD 0 derived from coordinates
Environmental severityC5 · 50/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot available not in dataset
CO₂ emissionsnot applicable not applicable

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 30 MW for Mampuri wind farm, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: B_SCOPE_PARENT_COMPLEX - recommended action: build_parent_complex_model - confidence: not_comparable_without_scope. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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 L100000901011); fuel: WRI source-record fuel

In context: how this plant compares

At 10 MW, Mampuri-II is around the median wind plant in Sri Lanka (10 MW). Wind turbines convert moving air into electricity; output is variable and site-dependent, and modern turbines deliver some of the lowest-cost new generation on many grids.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Capacity vs largest wind plants in Sri Lanka

Madurankuliya: 12 MW12Madurankul…Pollupalai: 12 MW12PollupalaiVallimunai: 12 MW12VallimunaiMampuri-II: 10 MW10Mampuri-IIMampuri-III: 10 MW10Mampuri-IIINirmalapura: 10 MW10NirmalapuraUppudaluwa: 10 MW10UppudaluwaPawan Danavi: 10 MW10Pawan Dana…

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

Owner

Operated by Senok Wind Energy.

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a tropical monsoon climate (Köppen Am) — Northern Hemisphere, latitude 8.0°N — which shapes how much energy it can produce and how its output varies through the year.

27.8°Cannual mean temp
0heating degree-days (base 18°C)
3,585cooling degree-days (base 18°C)
7 melevation

Monthly mean temperature

J: 26 °CJF: 27 °CFM: 28 °CMA: 29 °CAM: 29 °CMJ: 29 °CJJ: 28 °CJA: 28 °CAS: 28 °CSO: 28 °CON: 27 °CND: 26 °CD29 °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)
50/100environmental-severity index
3.1°Cseasonal temperature swing
26 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 #4 largest wind power plant of 14 in Sri Lanka by capacity.

Sri Lanka has 14 wind power plants in this dataset, together about 129 MW of capacity.

Nearby power plants

Location

Coordinates 7.9764, 79.7316 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Mampuri-II?

Mampuri-II is a 10 MW source-record wind power plant in North Western, Sri Lanka.

How many homes can Mampuri-II power?

Its output is enough to supply roughly 8,935 homes (estimated).

Who operates Mampuri-II?

Mampuri-II is operated by Senok Wind Energy.

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