Overview
MISO's hourly count of real-time binding transmission constraints. It supports system-level congestion frequency analysis, but does not name a facility, contingency, or shadow price and therefore cannot attribute congestion to a specific constraint.
Use with MCP
This table is available through the signed-in, read-only Ask the Grid MCP server. Connect a market below, then use search_data or describe_data to load its query contract before calling query_data.
Schema5
Column
Type
event_timeDateTime64(6, 'UTC')constraint_countNullable(Int32)datetime_localNullable(String)market_dateNullable(Date32)ingested_atDateTime64(6, 'UTC')Sample rows
| event_time | constraint_count | datetime_local | market_date | ingested_at |
|---|---|---|---|---|
| 2026-08-13 04:00:00.000000 | 1 | 2026-08-12T23:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-13 04:00:00.000000 | 1 | 2026-08-12T23:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-13 03:00:00.000000 | 2 | 2026-08-12T22:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-13 03:00:00.000000 | 2 | 2026-08-12T22:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-13 02:00:00.000000 | 2 | 2026-08-12T21:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-13 02:00:00.000000 | 2 | 2026-08-12T21:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-13 01:00:00.000000 | 4 | 2026-08-12T20:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-13 01:00:00.000000 | 4 | 2026-08-12T20:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-13 00:00:00.000000 | 6 | 2026-08-12T19:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-13 00:00:00.000000 | 6 | 2026-08-12T19:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-12 23:00:00.000000 | 10 | 2026-08-12T18:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-12 23:00:00.000000 | 10 | 2026-08-12T18:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-12 22:00:00.000000 | 10 | 2026-08-12T17:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-12 22:00:00.000000 | 10 | 2026-08-12T17:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-12 21:00:00.000000 | 11 | 2026-08-12T16:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-12 21:00:00.000000 | 11 | 2026-08-12T16:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-12 20:00:00.000000 | 9 | 2026-08-12T15:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-12 20:00:00.000000 | 9 | 2026-08-12T15:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-12 19:00:00.000000 | 4 | 2026-08-12T14:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-12 19:00:00.000000 | 4 | 2026-08-12T14:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-12 18:00:00.000000 | 4 | 2026-08-12T13:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-12 18:00:00.000000 | 4 | 2026-08-12T13:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-12 17:00:00.000000 | 4 | 2026-08-12T12:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
| 2026-08-12 17:00:00.000000 | 4 | 2026-08-12T12:00:00 | 2026-08-12 | 2026-08-13 17:04:36.557530 |
| 2026-08-12 16:00:00.000000 | 5 | 2026-08-12T11:00:00 | 2026-08-12 | 2026-08-13 18:04:40.095450 |
Coverage
100.0% complete0 gap days86 days with data
Show coverage history ▾
Coverage: 100.0%Days with data: 86Gaps: 0
2026
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