Cal OES (California Office of Emergency Services)¶

Cal OES provides power outage data specifically for California through their ArcGIS-based emergency management system.

Overview¶

Property	Value
Type	Power outages
Coverage	California, USA
Update Frequency	Real-time
Confidence Score	0.75
Source Identifier	`caloes`

Data Provided¶

Power outage locations
Utility company
Customer counts
Outage cause
Restoration estimates

API Endpoint¶

https://services.arcgis.com/BLN4oKB0N1YSgvY8/arcgis/rest/services/Power_Outages_(View)/FeatureServer/0/query

Query Parameters¶

Parameter	Value
`where`	`1=1` (all records)
`outFields`	`*`
`returnGeometry`	`true`
`f`	`json`
`resultRecordCount`	`2000`

Incident Fields¶

Field	Source
`id`	Generated: `caloes-{OBJECTID}`
`kind`	Always `"power"`
`region`	County name + ", CA"
`customersAffectedEstimate`	`CustomersAffected` field
`incidentCause`	Mapped from `Cause` field
`lat`, `lon`	From point geometry

Cause Mapping¶

Cal OES Cause	Mapped Value
Weather	`WEATHER`
Equipment Failure	`EQUIPMENT_FAILURE`
Vegetation	`VEGETATION`
Planned	`PLANNED_MAINTENANCE`
Unknown	`null`

Example Response¶

{
  "id": "caloes-12345",
  "kind": "power",
  "status": "ongoing",
  "startedAt": "2025-01-15T14:00:00Z",
  "confidence": 0.75,
  "summary": "Power outage in Los Angeles, CA (utility: SCE)",
  "region": "Los Angeles, CA",
  "customersAffectedEstimate": 2500,
  "source": "caloes",
  "incidentCause": "WEATHER",
  "lat": 34.0522,
  "lon": -118.2437
}

Advantages¶

Official California government source
Real-time updates
Detailed geographic data
Customer impact counts

Limitations¶

California coverage only
Data quality depends on utility reporting
May have duplicate incidents with ODIN