Definition
CTU (Central Transmission Utility) is PGCIL operating India's national high-voltage transmission grid. STU (State Transmission Utility) operates each state's high-voltage transmission. Both involved in utility-scale solar grid connection.
Key Takeaways
- CTU = central transmission utility (PGCIL).
- STU = state-level transmission utility.
- Both involved in utility-scale solar interconnection.
- CTU handles inter-state ≥ 220 kV; STU intra-state.
- Distinct from DISCOMs (distribution).
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