{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schema.nfh.global/EnergyResourceNetwork/v1.0",
  "title": "EnergyResourceNetwork",
  "description": "Typed schema for grid-network infrastructure energy resources acting as topology anchors (distribution transformer, busbar, feeder, microgrid). CIM: DT → cim:PowerTransformer, BUS → cim:BusbarSection, FEEDER → cim:Feeder, MICROGRID → cim:Substation (IEC 61970-301). Common fields inherited from EnergyResourceCommon/v1.0.",
  "allOf": [
    { "$ref": "https://schema.nfh.global/EnergyResourceCommon/v1.0#EnergyResourceCommon" },
    {
      "type": "object",
      "required": ["id", "type"],
      "properties": {
        "type": {
          "type": "string",
          "enum": ["DT", "BUS", "FEEDER", "MICROGRID"],
          "description": "Asset-class discriminator. CIM: DT → PowerTransformer, BUS → BusbarSection, FEEDER → Feeder, MICROGRID → Substation/microgrid container (IEC 61970-301)."
        },
        "attributes": { "$ref": "#/$defs/EnergyResourceNetworkAttributes" }
      }
    }
  ],
  "$defs": {
    "EnergyResourceNetworkAttributes": {
      "allOf": [
        { "$ref": "https://schema.nfh.global/EnergyResourceCommon/v1.0#EnergyResourceCommonAttributes" },
        {
          "type": "object",
          "additionalProperties": true,
          "description": "Attributes for grid-network infrastructure resources. Common fields inherited. Network-specific fields below.",
          "properties": {
            "nominalVoltageKv": {
              "type": "number",
              "minimum": 0,
              "description": "Nominal operating voltage, kV. CIM: BaseVoltage.nominalVoltage."
            },
            "zone": {
              "type": "string",
              "description": "Operating zone or region identifier used by the utility."
            },
            "substationId": {
              "type": "string",
              "description": "Parent substation identifier per utility records."
            },
            "feederCode": {
              "type": "string",
              "description": "Feeder code per utility records. Relevant for FEEDER and DT resources."
            }
          }
        }
      ]
    }
  }
}