California Grid Electricity Supply by Fuel: Solar, Wind, Gas, Hydro, Batteries (CAISO)
caisooutlook/supply-by-fuel
Today's electricity supply on the California ISO grid by source, in megawatts, in five-minute steps from midnight Pacific Time: solar, wind, geothermal, biomass, biogas, small hydro, coal, nuclear, natural gas, large hydro, batteries (negative while charging), imports and other, plus the newest reading. Takes no input. 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
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.
agent
// 1. search: find the tool
omnial_search({ query: "what you need" })
// 2. inspect: price and input schema
omnial_inspect({ tool: "caisooutlook/supply-by-fuel" })
// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "caisooutlook/supply-by-fuel" })
// 4. run: price the exact call first, then run it
omnial_execute({ tool: "caisooutlook/supply-by-fuel", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "caisooutlook/supply-by-fuel", input: { /* ... */ } })
// 5. settle: the call is charged when it finishes, nothing to doNot 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": {
"coal": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"time": {
"type": "string",
"description": "Time of day, HH:MM, Pacific Time."
},
"wind": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"other": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"solar": {
"type": [
"number",
"null"
],
"description": "Megawatts. Small negative values at night are published as is. Null when not yet available."
},
"biogas": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"biomass": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"imports": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"nuclear": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"batteries": {
"type": [
"number",
"null"
],
"description": "Megawatts. Negative while batteries charge. Null when not yet available."
},
"geothermal": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"large_hydro": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"natural_gas": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"small_hydro": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
}
},
"additionalProperties": true
},
"description": "One row per five minutes of the operating day so far, oldest first."
},
"latest": {
"anyOf": [
{
"type": "object",
"required": [
"time"
],
"properties": {
"coal": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"time": {
"type": "string",
"description": "Time of day, HH:MM, Pacific Time."
},
"wind": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"other": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"solar": {
"type": [
"number",
"null"
],
"description": "Megawatts. Small negative values at night are published as is. Null when not yet available."
},
"biogas": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"biomass": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"imports": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"nuclear": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"batteries": {
"type": [
"number",
"null"
],
"description": "Megawatts. Negative while batteries charge. Null when not yet available."
},
"geothermal": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"large_hydro": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"natural_gas": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
},
"small_hydro": {
"type": [
"number",
"null"
],
"description": "Megawatts. Null when not yet available."
}
},
"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 supply by fuel 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
}