MCA Central 400 kV Corridor (Lapsiphedi–Ratmate–Hetauda–Damauli–Butwal)
- Page status
- Registry record
- Updated
- 2026-05-11
Summary
The second 400 kV spine Nepal is building — the Millennium Challenge Account (MCA-Nepal) compact's headline infrastructure, running from Lapsiphedi (Kathmandu Valley ring) through Ratmate, Hetauda, Damauli and terminating at New Butwal, where it feeds the Gorakhpur–New Butwal 400 kV Cross-Border Interconnection. When complete, this corridor ends the single-point-of-failure problem on the eastern backbone.
Key Facts
| Parameter | Value |
|---|---|
| Voltage | 400 kV |
| Status | Under construction (partial energisation 2025) |
| Route-length basis | 308.65 route-km |
| Circuit-length basis | 617.3 circuit-km |
| Owner | Nepal Electricity Authority (NEA) (construction by MCA-Nepal contractors) |
| Terminal substations | Lapsiphedi · Ratmate · Hetauda · Damauli · New Butwal |
| Financing | US MCC grant (~US$500M corridor share) + Government of Nepal |
| Target full commissioning | 2026–2027 |
| Corridor ID | mca_central_400 |
Map Interpretation
The connected transmission layer now uses a source-aware MCA atlas trace rather than the older RPGCL overview fragments. It is modeled as five project segments: Lapsiphedi-Ratmate, Ratmate-New Hetauda, Ratmate-New Damauli, New Damauli-New Butwal, and New Butwal-India border.
Public decision: default-visible, high confidence.
Validation shows 5 atlas-derived features, no inferred connectors, no endpoint gaps, and a -1.32% delta against the 308.65 route-km compact basis.
Significance
- Second 400 kV spine. Parallels Hetauda–Dhalkebar–Inaruwa 400 kV Backbone via an entirely different geographic axis (Kathmandu → Western Terai), providing real N-1 redundancy for the first time.
- Gateway to the second cross-border link. Terminates at New Butwal, the Nepal end of Gorakhpur–New Butwal 400 kV Cross-Border Interconnection.
- Evacuates the western IPP cluster. Picks up output from the Marsyangdi and Kali Gandaki basins that has historically been trapped behind legacy 132 kV — partially solving Transmission and Delivery Are Material Immediate Monetization Constraints for the west.
- Symbolic role. First large US-funded infrastructure grant in Nepal; its progress is read as a proxy for Nepal's willingness to diversify foreign partners beyond India and China.
Limitations & Controversies
- Right-of-way disputes. Sections through Nuwakot and Kavre saw protracted community opposition over tower siting and compensation.
- Partial commissioning ≠ full rating. Early 2025 energisation covers the Ratmate–Hetauda link only; the full end-to-end 400 kV transfer capability awaits terminal substation completion at Damauli and New Butwal.
- Dependent on cross-border terminal. Full value is unlocked only when Gorakhpur–New Butwal 400 kV Cross-Border Interconnection also commissions.
- Atlas trace, not tower survey. The public geometry is route-grade for map and topology use, with sheet-level provenance, but it should not be read as a cadastral tower alignment.
See also
- Hetauda–Dhalkebar–Inaruwa 400 kV Backbone — the existing backbone it parallels
- Gorakhpur–New Butwal 400 kV Cross-Border Interconnection — the border link it feeds
- Dana–Kushma–New Butwal 220 kV Corridor — the 220 kV it relieves
- Transmission and Delivery Are Material Immediate Monetization Constraints