Ask the Grid
Create free workspace
IESO logo

IESO Output by Generator (hourly)

Hourly output, capability and available capacity for each generator in IESO's generator output report, by the report's generator name.

Generation dataIESO market
Query with the agent
Native record
generator x hour
hourly publication cadence
Evidence
Observed market data
Published observations from the named source
Time basis
Point-in-time records
UTC · event_time

Overview

Hourly output, capability and available capacity for each generator in IESO's generator output report, by the report's generator name.

Query contract

Preserve one canonical row per (event_time, generator_name) before aggregating.

Analysis rules

  • Rows repeat across polls: dedupe with argMax(value, ingested_at) per key.
  • Fuel totals: sum output_mw by fuel_type for one hour.

Interpretation

  • event_time marks the END of the interval or hour. IESO delivers on EST all year, but this mirror's event_time was built on Toronto wall time, so between the second Sunday of March and the first Sunday of November it is one hour early. The delivery end is event_time + toIntervalSecond(timeZoneOffset(toTimeZone(event_time, 'America/Toronto')) + 18000); rows in the spring-forward hour cannot be placed. Toronto civil time is for display only.
  • generator_name is IESO's report name, not an EIA or US plant id.

Access

Need the full history of this dataset in Snowflake, Databricks or your own storage? Data services delivers it on a schedule.

Schema7

Column
Type
event_timeDateTime64(6, 'UTC')
generator_nameLowCardinality(String)
fuel_typeNullable(String)
output_mwNullable(Float64)
capability_mwNullable(Float64)
available_capacity_mwNullable(Float64)
ingested_atDateTime64(6, 'UTC')

Sample data

event_timegenerator_namefuel_typeoutput_mwcapability_mwavailable_capacity_mwingested_at
2026-10-10 15:00:00.000000ZURICHWIND7575992026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000YORKCGS-G2GAS∅2332332026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000YORKCGS-G1GAS∅2332332026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000YORK BESSOTHER∅1321322026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000WOLFE ISLANDWIND211712026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000WINDSOR AIRPORT SFSOLAR3128502026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000WHITEDOGHYDRO2268682026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000WHITBYCGSGAS∅55552026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000WESTWINDSORGAS∅1431432026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000WEST LINCOLN NRWFWIND15162302026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000WELLSHYDRO∅2102102026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000VAUGHAN 1 BESSOTHER∅27272026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000UNDERWOODWIND1181141822026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000UMBATAFALLSHYDRO∅24242026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000TUNISGSGAS∅59592026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000TILBURY BATTERY STORAGEOTHER∅87872026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000THOROLDCGSGAS2373033032026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000TBAYBOWATER CTSBIOFUEL∅50502026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000TAWINDSORGAS∅76762026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000TASARNIAGAS2125055052026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000TAOHSCGAS∅70702026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000SUMMERHAVENWIND22221242026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000STEWARTVLEHYDRO∅44442026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000STEEPHILLHYDRO313132026-10-10 17:10:09.958667
2026-10-10 15:00:00.000000STCLAIRCGSGAS5976146142026-10-10 17:10:09.958667

Coverage

No time-indexed data — coverage isn’t applicable to this dataset.