California Grid Electricity Demand: Current, Hour-Ahead and Day-Ahead Forecast (CAISO)

caisooutlook/demand

Today's electricity demand on the California ISO grid (most of California) in megawatts, in five-minute steps from midnight Pacific Time: current demand, the hour-ahead forecast, the day-ahead forecast and demand response where reported, plus the newest reading. Takes no input. Readings after the current time are null, while the forecasts run to the end of the day. California ISO data, reshaped from CSV into JSON and served by Eden Engine; not an official CAISO 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

California ISO

Source: California ISO (CAISO), Today's Outlook, caiso.com/todays-outlook. Reshaped from CSV into JSON; served by Eden Engine; not an official CAISO product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

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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: "caisooutlook/demand" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "caisooutlook/demand" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "caisooutlook/demand", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "caisooutlook/demand", 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 24, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "columns",
    "latest",
    "rows"
  ],
  "properties": {
    "rows": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "time"
        ],
        "properties": {
          "time": {
            "type": "string",
            "description": "Time of day, HH:MM, Pacific Time."
          },
          "current_demand": {
            "type": [
              "number",
              "null"
            ],
            "description": "Measured demand, megawatts. Null for times that have not happened yet."
          },
          "demand_response": {
            "type": [
              "number",
              "null"
            ],
            "description": "Demand response, megawatts. Usually null."
          },
          "day_ahead_forecast": {
            "type": [
              "number",
              "null"
            ],
            "description": "Day-ahead demand forecast, megawatts."
          },
          "hour_ahead_forecast": {
            "type": [
              "number",
              "null"
            ],
            "description": "Hour-ahead demand forecast, megawatts."
          }
        },
        "additionalProperties": true
      },
      "description": "One row per five minutes of the operating day so far, oldest first."
    },
    "latest": {
      "anyOf": [
        {
          "type": "object",
          "required": [
            "time"
          ],
          "properties": {
            "time": {
              "type": "string",
              "description": "Time of day, HH:MM, Pacific Time."
            },
            "current_demand": {
              "type": [
                "number",
                "null"
              ],
              "description": "Measured demand, megawatts. Null for times that have not happened yet."
            },
            "demand_response": {
              "type": [
                "number",
                "null"
              ],
              "description": "Demand response, megawatts. Usually null."
            },
            "day_ahead_forecast": {
              "type": [
                "number",
                "null"
              ],
              "description": "Day-ahead demand forecast, megawatts."
            },
            "hour_ahead_forecast": {
              "type": [
                "number",
                "null"
              ],
              "description": "Hour-ahead demand forecast, megawatts."
            }
          },
          "additionalProperties": true
        },
        {
          "type": "null"
        }
      ],
      "description": "The newest row that holds a reading, or null when none does yet (just after midnight)."
    },
    "columns": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "The row keys, in file order."
    }
  },
  "description": "Today's demand on the California ISO grid. Times are Pacific Time for the current operating day; the CSV carries no date or zone (the newest row tracked Pacific wall-clock time on 2026-10-21). Values are megawatts. The last row of the demand file is the next day's 00:00 forecast. Values are passed through as published.",
  "additionalProperties": false
}