Kulekhani III

14 MW · operating · on the Kulekhani · in Makwanpur district.

Summary

Kulekhani III is the 14 MW tail-end plant in Nepal's only operating reservoir-fed cascade. The page tracks its role as the downstream efficiency link that depends on Kulekhani I and II dispatch as well as Khani Khola natural flow.

Specifications

Parameter	Value
Capacity	14 MW
Status	Operating
River	Kulekhani
District	Makawanpur
Province	Bagmati Pradesh

Specifications (NEA FY 2081/82)

Kulekhani III is the smallest and most downstream plant in Nepal's only operating reservoir cascade. At 14 MW, it sits below Kulekhani II (32 MW), which sits below Kulekhani I (60 MW) and its reservoir. The water Kulekhani III generates from has already been stored in the Kulekhani Reservoir, shifted from monsoon inflow to dry-season dispatch, passed through Kulekhani I's turbines, collected in a forebay, passed through Kulekhani II, and collected again before reaching the third plant's intake.

Parameter	Value
Type	Cascade (reservoir-fed, tail-end)
Design generation	40.85 GWh/yr
FY 2081/82 generation	34.3 GWh
FY 2081/82 vs target	117%
FY 2081/82 vs design	79%
Year-over-year change	+54%
Cumulative lifetime generation	176.3 GWh
Supplementary source	Khani Khola (natural flow)
Location	Makwanpur District

The 54% year-over-year increase mirrors the surge at Kulekhani I (+64.5%) and Kulekhani II (+56%) — all three cascade plants rose together because a strong monsoon filled the reservoir. Recent upgrades included shaft alignment and generator bearing replacement in Unit 2, plus 7.2 kV vacuum circuit breaker installations in both units.

The Cascade Tail-End — Efficiency Argument

Kulekhani III's position makes it the cascade's efficiency argument: the value of storage is not just in the first turbine — dispatchable water can generate at every stage of the cascade before returning to the natural river system. At 14 MW, the absolute contribution is small. But the principle matters: reservoir storage is a multiplier on cascade economics, not just a single-plant advantage.

117% of Target, 79% of Design — No Contradiction

In FY 2081/82, Kulekhani III generated at 117% of its internal target — one of the highest target-achievement ratios in the documented NEA fleet. Against design energy, performance was approximately 79%.

The gap between these two figures reflects deliberate conservatism in target-setting for a tail-end cascade plant. The target accounts for the fact that Kulekhani III's inflow is not the river directly — it is whatever water the two upstream plants have dispatched. If Kulekhani I draws down the reservoir deeply (as it does in dry years), Kulekhani III gets less water. The internal target is set to reflect this dependency; the design energy reflects what the plant could do if upstream conditions were optimal year-round.

This distinguishes Kulekhani III from the Chilime pattern. Chilime overperforms because its design assumptions were conservative relative to actual hydrology. Kulekhani III overperforms against its internal target because that target builds in the upstream dependency — not because its design energy was set too high. The two mechanisms are different.

Second-Order Hydrology Dependence

Kulekhani III's generation is twice removed from monsoon quality:

Good monsoon → Kulekhani Reservoir fills → KL1 dispatches freely in dry season → KL2 gets consistent inflow → KL3 runs at high utilisation
Poor monsoon → Reservoir partially fills → KL1 conserves releases → KL2 gets less → KL3 runs below capacity

The 64% year-on-year swing at KL1 (FY 2080/81 to 2081/82) is amplified at the cascade tail-end. A good inflow year lifts all three plants; a poor year may prompt KL1 to reserve water for dry-season dispatch rather than let it flow through all three plants at full rate. The cascade operator must balance immediate generation against storage preservation — a real-time decision that has no equivalent in RoR operation. Kulekhani III is simultaneously the cascade's most efficient (% of target) and most dependent generator.

Significance for the Storage Thesis

The three-plant cascade — 60 + 32 + 14 = 106 MW — generated 279.8 GWh in FY 2081/82 from a single reservoir system. Compare with Marsyangdi (69 MW, pure RoR), which generates in a similar GWh range from direct river flow. The comparison is not about total energy — it is about timing. The cascade can choose when to generate; a RoR plant cannot. At 14 MW, Kulekhani III's contribution to that dispatchability is small but the architecture it demonstrates — reservoir → cascade → grid — is the template every future storage proposal depends on.

The Storage Deficit page frames the broader argument. Kulekhani III is the concrete endpoint: the last turbine in Nepal's only storage system, proving that reservoir-to-cascade generation works at every stage — and that Nepal has built exactly one such system.

Limitations & Controversies

Kulekhani III's output is second-order dependent on upstream reservoir and cascade dispatch, so target achievement should not be read as standalone hydrological strength. The page does not independently verify unit availability, rehabilitation needs, Khani Khola contribution, or future performance under lower reservoir-fill years.