India Grid Monitor — ISTS connectivity, reconciled
Who holds India’s inter-state transmission queue, how much headroom remains at each
substation, and when access closes — measured from CTUIL’s own connectivity filings
and CEA’s construction register, verified against 47 automated reconciliation checks.
The interactive platform needs JavaScript; the substance is below.
What the data says (2026-08 edition)
- 98 tracked ISTS substations: 44 already closed by margin or queue, 11 dated to close, 20 still open
- 1,414 connectivity applications in the pipeline (345 GW); 875 approved grants awaiting effectivity
- The granted book: 1,423 grants, net +9 this edition (26 added, 17 departed)
- 6,213 MW of two-sided collisions at 5 contested nodes
- Median filed-to-grant latency 176 days; median date slippage +123 days across the seven-edition archive
- 256 verified developer groups; 85.7% of held MW parented to a known corporate group
The platform
- Dashboard — India map of pressured substations, the ask builder (“where can 500 MW connect?”), closure brackets
- What Changed — this cycle and the three-year archive behind it
- Watchlist — track substations, rivals and application IDs; free email-code sign-in
- Deep Analytics — six named instruments: claim collisions, consumption vs margin, book size vs concentration, developer×node intensity, closed-by-state, the depletion bracket
The monthly brief
Closures, date moves and the queue — one email a month, nothing else.
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Provenance
Derived, aggregated analysis of CTUIL / CEA filings with attribution; the source sheets are
marked RESTRICTED by CTUIL and nothing here republishes a sheet verbatim. Solar-hour and
non-solar-hour margins are never summed; a missing number is never rendered as zero.
Editorial: brief@indiagridmonitor.com.