NEA Transmission Length FY 2076/77

Summary

This data page records NEA's FY 2076/77 transmission-line length by voltage class, preserving a pre-build-out snapshot of the legacy 66/132/220 kV system and the first operational 400 kV segment.

NEA's FY 2076/77 transmission-length table captures the grid just before the full 400 kV build-out visible in later years. It is the cleanest single-book snapshot for the legacy 132/220 kV system plus the first operational 400 kV segment.

FY 2076/77 Totals

Voltage level	Circuit-km
66 kV	514
132 kV	3240
220 kV	437
400 kV	78
Total	4269.7

Why It Matters

The 132 kV system still dominated the physical grid, which is one reason evacuation bottlenecks remained structurally a 132/220 kV problem even after the first 400 kV assets appeared.
The 78 circuit-km at 400 kV is the early backbone era rather than a mature national 400 kV mesh. That context matters when reading Hetauda–Dhalkebar–Inaruwa 400 kV Backbone as a singular asset rather than a redundant network.
The gap between 3240 km at 132 kV and 437 km at 220 kV helps explain why corridors such as Khimti–Dhalkebar 220 kV Hydropower Corridor and the later Nepal Transmission System — 400 kV Landscape & Cross-Border Plan (2025) compilation are so central to the stranded-generation story.

Coverage / Method

The table is transcribed from the NEA Transmission Directorate line-length comparison table in the FY 2076/77 transmission annual book. It covers reported circuit-kilometres by voltage level for 66 kV, 132 kV, 220 kV, and 400 kV transmission lines in that fiscal-year snapshot.

Caveats

The source is a historical annual-book snapshot and does not represent later 400 kV build-out, project commissioning, or route-level corridor status. Circuit-kilometres measure line length by voltage class, not available transfer capacity, congestion, redundancy, or substation readiness.