Ontario Generation by Fuel Type for a Day (IESO)

iesopublicreports/generation-by-fuel

Hourly electricity generation on the Ontario grid for one day, summed by fuel type, from the Independent Electricity System Operator (IESO) Generator Output and Capability report. Give the date as YYYYMMDD; get, for each fuel type (nuclear, gas, hydro, wind, solar, biofuel, other), the number of generators, the day's energy in megawatt-hours, the hourly output in megawatts and the hourly capability in megawatts, plus the day's total. The IESO keeps about the last three months of daily files; an older date or one not yet published is refused by the source. Sums are computed by Eden Engine from the IESO's per-generator hourly file. IESO data subject to the IESO Terms of Use; served by Eden Engine; not an official IESO product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

Independent Electricity System Operator (IESO)

Copyright © 2004-2022 Independent Electricity System Operator, all rights reserved. This information is subject to the Terms of Use set out in the IESO's website (www.ieso.ca). Served by Eden Engine; not an official IESO product.

Use it

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "iesopublicreports/generation-by-fuel" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "iesopublicreports/generation-by-fuel" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "iesopublicreports/generation-by-fuel", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "iesopublicreports/generation-by-fuel", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 25, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "date"
  ],
  "properties": {
    "date": {
      "type": "string",
      "pattern": "^20[2-9][0-9](?:(?:0[13578]|1[02])(?:0[1-9]|[12][0-9]|3[01])|(?:0[469]|11)(?:0[1-9]|[12][0-9]|30)|02(?:0[1-9]|[12][0-9]))$",
      "description": "Date of the report as YYYYMMDD, for example 20261023. The IESO keeps about the last three months of daily files; an older or unpublished date is refused by the source."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "date",
    "generators",
    "totalEnergyMwh",
    "fuels"
  ],
  "properties": {
    "date": {
      "type": "string",
      "description": "Date the report covers (YYYY-MM-DD)."
    },
    "fuels": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "fuelType",
          "generators",
          "dailyEnergyMwh",
          "hourlyOutputMw",
          "hourlyCapabilityMw"
        ],
        "properties": {
          "fuelType": {
            "type": "string",
            "description": "Fuel type as the IESO names it, for example NUCLEAR, GAS, HYDRO, WIND, SOLAR, BIOFUEL, OTHER."
          },
          "generators": {
            "type": "integer",
            "description": "Generators of this fuel type."
          },
          "dailyEnergyMwh": {
            "type": "integer",
            "description": "Energy over the day in megawatt-hours (sum of hourly megawatts), rounded."
          },
          "hourlyOutputMw": {
            "type": "array",
            "items": {
              "type": "integer"
            },
            "description": "Summed output per hour in megawatts; element 1 is hour 1 of the report."
          },
          "hourlyCapabilityMw": {
            "type": "array",
            "items": {
              "type": "integer"
            },
            "description": "Summed capability per hour in megawatts; element 1 is hour 1 of the report. Empty when the report gives none."
          }
        },
        "additionalProperties": false
      },
      "description": "One entry per fuel type, largest daily energy first."
    },
    "createdAt": {
      "type": "string",
      "description": "When the IESO created the report, as the file states it."
    },
    "generators": {
      "type": "integer",
      "description": "Generators the report lists."
    },
    "totalEnergyMwh": {
      "type": "integer",
      "description": "Energy of all generators over the day, in megawatt-hours (sum of hourly megawatts)."
    }
  },
  "additionalProperties": false
}