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Tie-up between two national utilities

Short answer

A tie-up between national utilities is an agreement and cross-border interconnection for power exchange and reserve sharing. Nepal-India example: 400 kV Dhalkebar-Muzaffarpur line, Power Trade Agreement, export via IEX, long-term target 10,000 MW. Benefits include wet-season export, dry-season import, shared reserve, market for hydro; issues include approvals, pricing, transmission capacity.

Discuss the scenario of tie up between two national level electric utilities.

A tie-up between two national utilities is an agreement and physical interconnection (cross-border transmission lines) that allows two countries' electricity utilities to exchange power, share reserve and trade energy. The Nepal (NEA) – India tie-up is the main example for Nepal.

Present scenario (Nepal–India)

  • Many 11, 33 and 132 kV cross-border links exist, plus the Dhalkebar–Muzaffarpur 400 kV line (first charged at 220 kV, operated at 400 kV since 2020).
  • New 400 kV links (Butwal–Gorakhpur, Dhalkebar–Sitamarhi, Inaruwa–Purnea) are under construction or planned.
  • The Power Exchange Agreement (since 1971) and the Power Trade Agreement (2014) allow trade; Nepal has sold power through the Indian Energy Exchange since 2021.
  • A long-term agreement (2024) targets 10,000 MW of export to India within ten years; tripartite trade to Bangladesh (40 MW) started in 2024.

Benefits

  • Nepal sells its wet-season surplus and imports in the dry season.
  • Shared reserve and better reliability for both.
  • India gets clean hydropower for its renewable targets.
  • Investment in Nepal's large hydro becomes viable with an assured market.

Issues

Approval needed from Indian authorities for each project, pricing, transmission capacity, grid code compatibility and political dependence.

✓ Answer checked by Claude Opus 5.5 (high effort)

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