openapi: 3.1.1
info:
  title: EnergyTrade
  version: '2.0'
  description: '⚠️ DEPRECATED — Use P2PTrade/v2.0 instead. This schema is preserved for backward compatibility.
    See deg:EnergyTrade owl:equivalentClass deg:P2PTrade and beckn:Order owl:equivalentClass beckn:Contract
    in the OWL vocabulary.

    JSON Schema for P2P energy trading contracts. EnergyTrade is a subclass of Contract that specialises
    the base beckn Contract for energy delivery between prosumers.

    An EnergyTrade brings together: - An energy resource (the item being traded — see EnergyResource)
    - An energy trade offer with pricing model and delivery window (see EnergyTradeOffer) - A trade delivery
    tracking meter readings and status (see EnergyTradeDelivery) - Customer identity for buyer and provider
    sides (see EnergyCustomer) - A contract item wrapper linking customer and delivery data (see EnergyOrderItem)
    - Optional gifting metadata (see EnergyGift)

    The seven domain schemas are defined in $defs and are also published independently at https://schema.beckn.io/<SchemaName>/v2.0.'
components:
  schemas:
    EnergyTrade:
      type: object
      additionalProperties: false
      x-tags:
      - energy-trade
      - p2p-trading
      - contract
      - energy
      x-jsonld:
        '@context': ./context.jsonld
        '@type': EnergyTrade
      properties:
        offer:
          description: 'Energy trade offer attributes — pricing model, delivery/validity windows, and
            optional gift. Maps to Offer.offerAttributes in the beckn message flow.

            '
          x-jsonld:
            '@id': offer
          allOf:
          - $ref: '#/$defs/EnergyTradeOffer'
        delivery:
          description: 'Energy trade delivery tracking — delivery status, meter readings, curtailment.
            Maps to orderItemAttributes.fulfillmentAttributes in the beckn message flow.

            '
          x-jsonld:
            '@id': delivery
          allOf:
          - $ref: '#/$defs/EnergyTradeDelivery'
        energyResource:
          description: 'Energy resource item attributes — source type and source meter ID. Maps to Item.itemAttributes
            in the beckn message flow.

            '
          x-jsonld:
            '@id': energyResource
          allOf:
          - $ref: '#/$defs/EnergyResource'
        buyer:
          description: 'Customer attributes for the energy buyer (consumer/prosumer). Maps to Buyer.buyerAttributes
            in the beckn message flow.

            '
          x-jsonld:
            '@id': buyer
          allOf:
          - $ref: '#/$defs/EnergyCustomer'
        provider:
          description: 'Customer attributes for the energy provider (prosumer/producer). Maps to Provider.providerAttributes
            in the beckn message flow.

            '
          x-jsonld:
            '@id': provider
          allOf:
          - $ref: '#/$defs/EnergyCustomer'
        orderItem:
          description: 'Order item wrapper linking provider attributes and optional fulfillment data.
            Maps to beckn:orderItemAttributes in P2P energy trading flows.

            '
          x-jsonld:
            '@id': orderItem
          allOf:
          - $ref: '#/$defs/EnergyOrderItem'
      deprecated: true
      x-supersededBy: https://schema.beckn.io/deg/P2PTrade/v2.0
      x-owl-equivalentClass: deg:P2PTrade
      allOf:
      - $ref: https://schema.beckn.io/Contract/v2.0
      $defs:
        EnergyTradeOffer:
          type: object
          additionalProperties: false
          required:
          - pricingModel
          x-jsonld:
            '@context': ./context.jsonld
            '@type': EnergyTradeOffer
          description: 'Offer attributes for P2P energy trading. Attached to Offer.offerAttributes to
            provide pricing models, availability windows, and delivery details. NOTE: Price (beckn:price)
            is specified on the parent Offer object, not here. The price.applicableQuantity specifies
            the max energy quantity for this delivery window.

            '
          properties:
            pricingModel:
              type: string
              enum:
              - PER_KWH
              - TIME_OF_DAY
              - SUBSCRIPTION
              - FIXED
              description: Pricing model classification used for the energy trade offer.
              example: PER_KWH
              x-jsonld:
                '@id': pricingModel
            validityWindow:
              description: 'Time window during which this offer can be selected/accepted. Typically set
                to expire before delivery starts (e.g., 4 hours before delivery start time) to allow for
                scheduling and grid coordination. After this window closes, the offer is no longer available
                for selection.

                '
              x-jsonld:
                '@id': validityWindow
              allOf:
              - $ref: https://schema.beckn.io/TimePeriod/v2.0
              - type: object
                required:
                - schema:startTime
                - schema:endTime
            deliveryWindow:
              description: 'Specific time period (start and end time) when energy delivery occurs. Different
                from validityWindow which indicates when the offer can be selected. This represents the
                actual delivery time window. All times MUST be in UTC (ISO 8601 with Z suffix).

                '
              x-jsonld:
                '@id': deliveryWindow
              allOf:
              - $ref: https://schema.beckn.io/TimePeriod/v2.0
              - type: object
                required:
                - schema:startTime
                - schema:endTime
                properties:
                  schema:startTime:
                    type: string
                    format: date-time
                    pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d+)?Z$
                    description: Start time in UTC (ISO 8601 format with Z suffix).
                    example: '2025-06-15T09:00:00Z'
                  schema:endTime:
                    type: string
                    format: date-time
                    pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d+)?Z$
                    description: End time in UTC (ISO 8601 format with Z suffix).
                    example: '2025-06-15T10:00:00Z'
            gift:
              description: 'Optional gift parameters for energy gifting. When present, indicates this
                offer is a gift from a prosumer (gifter) to a specific recipient, discoverable by lookupHash
                of the recipient''s phone and claimable using a shared secret. Gift offers are typically
                listed at price 0 on the catalog.

                '
              x-jsonld:
                '@id': gift
              allOf:
              - $ref: '#/$defs/EnergyGift'
        EnergyGift:
          type: object
          additionalProperties: false
          required:
          - lookupHash
          - claimVerifier
          - expiresAt
          x-jsonld:
            '@context': ./context.jsonld
            '@type': EnergyGift
          description: 'Gift parameters for P2P energy gifting. Enables a prosumer (gifter) to make an
            energy offer available at 0 price on the catalog, discoverable by the SHA-256 hash of the
            recipient''s phone number and claimable via a secret shared out-of-band from the gifter to
            the recipient.

            '
          properties:
            lookupHash:
              type: string
              pattern: ^[A-Fa-f0-9]{64}$
              description: 'SHA-256 hash of the recipient''s phone number (E.164 format, e.g. +919876543210).
                Used for privacy-preserving discovery — the catalog can be searched by this hash so that
                only the intended recipient finds the gift offer.

                '
              example: a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2
              x-jsonld:
                '@id': lookupHash
            claimVerifier:
              type: string
              pattern: ^[A-Fa-f0-9]{64}$
              description: 'SHA-256 hash of a claim secret shared out-of-band from the gifter to the recipient.
                The recipient proves ownership by presenting the pre-image (the original secret) which
                is hashed and compared to this value during claim validation.

                '
              example: f6e5d4c3b2a1f6e5d4c3b2a1f6e5d4c3b2a1f6e5d4c3b2a1f6e5d4c3b2a1f6e5
              x-jsonld:
                '@id': claimVerifier
            expiresAt:
              type: string
              format: date-time
              pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d+)?Z$
              description: 'Gift expiration timestamp in UTC (ISO 8601 with Z suffix). After this time
                the gift offer is no longer claimable and may be removed from the catalog.

                '
              example: '2025-07-01T00:00:00Z'
              x-jsonld:
                '@id': expiresAt
        EnergyTradeDelivery:
          type: object
          additionalProperties: false
          x-jsonld:
            '@context': ./context.jsonld
            '@type': EnergyTradeDelivery
          description: 'Fulfillment attributes for energy trade deliveries. Attached to orderItemAttributes.fulfillmentAttributes
            to track physical transfer of energy including delivery status, meter readings, and energy
            allocation data. consumedEnergy = energy TO customer (imported), producedEnergy = energy FROM
            customer (exported to grid).

            '
          properties:
            deliveryStatus:
              type: string
              enum:
              - PENDING
              - IN_PROGRESS
              - COMPLETED
              - FAILED
              description: Delivery status for the energy transfer.
              example: IN_PROGRESS
              x-jsonld:
                '@id': deliveryStatus
            deliveryMode:
              type: string
              enum:
              - EV_CHARGING
              - BATTERY_SWAP
              - V2G
              - GRID_INJECTION
              description: Mode of energy delivery for this fulfillment.
              example: GRID_INJECTION
              x-jsonld:
                '@id': deliveryMode
            deliveredQuantity:
              type: number
              minimum: 0
              description: Total quantity delivered so far in kilowatt-hours (kWh).
              example: 15.0
              x-jsonld:
                '@id': deliveredQuantity
            meterReadings:
              type: array
              description: 'Array of meter readings for this orderItem. Each reading covers a time window
                and reports energy delivered/received during that period. Times are in UTC (ISO 8601 with
                Z suffix).

                '
              items:
                type: object
                additionalProperties: false
                required:
                - beckn:timeWindow
                - allocatedEnergy
                - unit
                properties:
                  beckn:timeWindow:
                    type: object
                    description: Time period for this meter reading (UTC).
                    additionalProperties: false
                    required:
                    - schema:startTime
                    - schema:endTime
                    properties:
                      '@type':
                        type: string
                        enum:
                        - beckn:TimePeriod
                      schema:startTime:
                        type: string
                        format: date-time
                        pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d+)?Z$
                        description: Start time in UTC (ISO 8601 with Z suffix).
                      schema:endTime:
                        type: string
                        format: date-time
                        pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d+)?Z$
                        description: End time in UTC (ISO 8601 with Z suffix).
                  consumedEnergy:
                    type: number
                    minimum: 0
                    description: 'Energy consumed by the customer (imported from grid) in this time window
                      (kWh). Per IEC 61968/ESPI flowDirection=1.

                      '
                    x-jsonld:
                      '@id': consumedEnergy
                  producedEnergy:
                    type: number
                    minimum: 0
                    description: 'Energy produced by the customer (exported to grid) in this time window
                      (kWh). Per IEC 61968/ESPI flowDirection=19.

                      '
                    x-jsonld:
                      '@id': producedEnergy
                  allocatedEnergy:
                    type: number
                    minimum: 0
                    description: Net energy allocated for this trade in this time window (kWh).
                    x-jsonld:
                      '@id': allocatedEnergy
                  unit:
                    type: string
                    enum:
                    - kWh
                    - MWh
                    - Wh
                    default: kWh
                    description: Unit of measurement for energy values.
                    x-jsonld:
                      '@id': schema:unitText
              x-jsonld:
                '@id': meterReadings
            curtailedQuantity:
              type: number
              minimum: 0
              description: 'Quantity curtailed from original contracted amount (kWh). Used by BAP/BPP
                to reconcile payment vs. original contracted quantity.

                '
              example: 5.0
              x-jsonld:
                '@id': curtailedQuantity
            curtailmentReason:
              type: string
              enum:
              - GRID_OUTAGE
              - EMERGENCY
              - CONGESTION
              - MAINTENANCE
              - OTHER
              description: Reason for curtailment. Useful for audit trail and dispute resolution.
              example: GRID_OUTAGE
              x-jsonld:
                '@id': curtailmentReason
            lastUpdated:
              type: string
              format: date-time
              description: Last delivery update timestamp in UTC (ISO 8601 with Z suffix).
              example: '2024-10-04T15:30:00Z'
              x-jsonld:
                '@id': schema:dateModified
        EnergyResource:
          type: object
          additionalProperties: false
          x-jsonld:
            '@context': ./context.jsonld
            '@type': EnergyResource
          description: 'Item attributes for energy resources. Attached to Item.itemAttributes to provide
            energy-specific characteristics including source type and meter identifiers.

            '
          properties:
            sourceType:
              type: string
              enum:
              - SOLAR
              - BATTERY
              - GRID
              - HYBRID
              - RENEWABLE
              description: Type of energy source. Source verification occurs at onboarding but can change
                post-onboarding (e.g., switching from solar to diesel). Source type influences price but
                not workflow.
              example: SOLAR
              x-jsonld:
                '@id': sourceType
            meterId:
              type: string
              description: Source meter identifier in DER address format (der://meter/{id}). Used for
                discovery and fulfillment tracking.
              example: der://meter/100200300
              x-jsonld:
                '@id': meterId
        EnergyCustomer:
          type: object
          additionalProperties: false
          required:
          - meterId
          x-jsonld:
            '@context': ./context.jsonld
            '@type': EnergyCustomer
          description: 'Customer attributes for energy flows. Used for consumers, producers, or prosumers
            in: - orderItemAttributes (init request): Contains meterId for delivery destination - orderItemAttributes
            (responses): Contains meterId for delivery destination - buyerAttributes (enrollment): Contains
            meterId and sanctionedLoad for customer identification

            '
          properties:
            meterId:
              type: string
              description: 'Meter identifier in DER address format (der://meter/{id}). Used for customer
                identification and energy delivery tracking in P2P trading flows.

                '
              example: der://meter/98765456
              x-jsonld:
                '@id': meterId
            sanctionedLoad:
              type: number
              minimum: 0
              description: 'Sanctioned load capacity in kilowatts (kW). Optional field representing the
                approved electrical load capacity for the customer''s connection. Used for load management
                and regulatory compliance.

                '
              example: 15.0
              x-jsonld:
                '@id': sanctionedLoad
            utilityCustomerId:
              type: string
              description: 'Customer''s account identifier with the utility company (e.g., PG&E customer
                number). Used for billing, service identification, and utility system integration.

                '
              example: UTIL-CUST-123456
              x-jsonld:
                '@id': utilityCustomerId
            utilityId:
              type: string
              description: 'Utility/DISCOM identifier for the customer''s service territory (e.g., "TPDDL-DL",
                "BESCOM-KA"). Used in inter-utility/inter-DISCOM P2P trading to identify which utility
                serves this customer. Should match the corresponding utilityIdSeller or utilityIdBuyer
                in orderAttributes for cross-utility transactions.

                '
              example: TPDDL-DL
              x-jsonld:
                '@id': utilityId
        EnergyOrderItem:
          type: object
          additionalProperties: false
          required:
          - providerAttributes
          x-jsonld:
            '@context': ./context.jsonld
            '@type': EnergyOrderItem
          description: 'Order item attributes for P2P energy trading. Wraps customer information and optional
            fulfillment tracking data. Use this schema for beckn:orderItemAttributes in P2P energy trading
            flows.

            '
          properties:
            providerAttributes:
              type: object
              description: 'Provider/customer information for this order item, including meter ID and
                utility account.

                '
              additionalProperties: true
              properties:
                '@context':
                  type: string
                  format: uri
                  description: URI to the EnergyCustomer context.jsonld
                '@type':
                  type: string
                  enum:
                  - EnergyCustomer
                  description: Type identifier for provider attributes
              x-jsonld:
                '@id': providerAttributes
            fulfillmentAttributes:
              type: object
              description: 'Optional fulfillment tracking for this order item. Only populated in on_status
                and on_update responses (not in init/confirm flows). Contains delivery status, meter readings,
                and energy allocation data.

                '
              additionalProperties: true
              properties:
                '@context':
                  type: string
                  format: uri
                  description: URI to the EnergyTradeDelivery context.jsonld
                '@type':
                  type: string
                  enum:
                  - EnergyTradeDelivery
                  description: Type identifier for fulfillment attributes
              x-jsonld:
                '@id': fulfillmentAttributes