schema-aggregator

EnergyResourceEVCharger v1.0

Schema ID: https://schema.nfh.global/EnergyResourceEVCharger/v1.0 CIM: ElectricVehicleChargingStation (CIM17+) Status: Current

---

Overview

EnergyResourceEVCharger is the typed attribute schema for EV charging station energy resources (type = "EV_CHARGER" or type = "EV_V2G").

An EV_CHARGER is the EVSE (Electric Vehicle Supply Equipment) hardware at the grid connection point. It is a flexible load — NOT a storage resource. The EV battery is storage; the EVSE is the charge/discharge interface.

EV_V2G is a specialisation of EV_CHARGER with Vehicle-to-Grid capability per ISO 15118-20 / OCPP 2.1 BPT. For EV_V2G, set both maxImportKw (charge rate, ≥0) and maxExportKw (V2G discharge rate, ≥0) in the attributes bag.

---

Files

File	Description
attributes.yaml	OpenAPI 3.1.1 schema — EnergyResourceEVCharger and its Attributes object
schema.json	Standalone JSON Schema 2020-12 (self-contained)
context.jsonld	JSON-LD 1.1 context mapping terms to semantic IRIs
vocab.jsonld	RDF vocabulary — class and property definitions

---

Type Discriminator

type value	Description
EV_CHARGER	Unidirectional or AC bidirectional EVSE
EV_V2G	Vehicle-to-Grid capable EVSE (ISO 15118-20 / OCPP 2.1 BPT)

---

Attributes

Common attributes (EnergyResourceCommonAttributes — all kinds)

Field	Type	Description
make	string	Manufacturer
model	string	Model number
ratedPowerKw	number ≥0	Rated peak power, kW — backward compat; prefer maxImportKw
maxImportKw	number ≥0	Max charge power drawn from grid, kW. CIM: PowerElectronicsConnection.maxP (absorption)
maxExportKw	number ≥0	Max V2G discharge power injected to grid, kW. Set for EV_V2G only
telemetryProvider	string	Telemetry vendor / API identifier
commissioningDate	string (ISO 8601 date-time)	Date-time commissioned
location	object (beckn Location/2.0)	geo (GeoJSONGeometry) + address (PostalAddress)

EV charger-specific attributes

Field	Type	Standard	Description
connectorType	enum	IEC 62196 / SAE J3400	Type1 · Type2 · CCS1 · CCS2 · CHAdeMO · GB_T · NACS · Other
controlProtocol	enum	OCPP / ISO 15118	OCPP_1.6 · OCPP_2.0.1 · OCPP_2.1 · ISO_15118_2 · ISO_15118_20 · Other
v2xProtocol	enum	ISO 15118-20	CHAdeMO_V2G · CCS_BPT · ISO_15118_20_AC_BPT · ISO_15118_20_DC_BPT · Other — present for EV_V2G only

---

Examples

AC EV charger (7.4 kW, unidirectional):

{
  "id": "did:web:utility.com:assets:evse:EVSE-001",
  "type": "EV_CHARGER",
  "attributes": {
    "make": "ABB", "model": "Terra AC W22",
    "maxImportKw": 7.4,
    "connectorType": "Type2",
    "controlProtocol": "OCPP_2.0.1",
    "commissioningDate": "2025-03-01T00:00:00+05:30",
    "location": {"geo": {"type": "Point", "coordinates": [77.5946, 12.9716]}}
  },
  "parentResources": ["did:web:utility.com:assets:meter:MET-001"]
}

V2G charger (11 kW charge / 7.4 kW discharge):

{
  "id": "did:web:utility.com:assets:evse:EVSE-V2G-001",
  "type": "EV_V2G",
  "attributes": {
    "make": "Wallbox", "model": "Quasar 2",
    "maxImportKw": 11, "maxExportKw": 7.4,
    "connectorType": "CCS2",
    "controlProtocol": "ISO_15118_20",
    "v2xProtocol": "ISO_15118_20_AC_BPT",
    "commissioningDate": "2025-06-01T00:00:00+05:30"
  },
  "parentResources": ["did:web:utility.com:assets:meter:MET-001"]
}