---
title: "Create Sub-Unit Site Measurements"
method: POST
path: "/resources/pv_power_site_measurements/sub_units"
tags: ["Resources", "Premium PV Power"]
---

# Create Sub-Unit Site Measurements

`POST /resources/pv_power_site_measurements/sub_units`

Submit sub-unit measurement data for a Premium PV Power site. Each measurement must include a 'sub_unit' label. Maximum 1000 measurements per request. Power units (AC) are measured in MW.

## Request body

- CreatePvSubUnitSiteMeasurements — Create Sub-Unit Site Measurements
  - `measurements` ApiPvSubUnitSiteMeasurement[] — Array of sub-unit measurement records (1-1000).
    - `availability` number, double, nullable — Availability percentage (0-100).
    - `curtailment` number, double, nullable — Curtailment ceiling in MW.
    - `period` string, nullable — Duration of the measurement period (ISO-8601 duration, e.g., PT5M). Either 'period' or 'period_start' required.
    - `period_end` string, date-time — End of the measurement period (ISO-8601 with timezone, exclusive).
    - `period_start` string, date-time, nullable — Start of the measurement period (ISO-8601 with timezone, inclusive). Alternative to 'period'.
    - `power` number, double — Power output in MW.
    - `sub_unit` string, required — Caller-defined sub-unit label (printable ASCII).
  - `resource_id` string, required — The unique identifier of the Premium PV Power resource.

## Response `200`

OK

- CreateSiteMeasurementsResponse
  - `resource_id` string, nullable
  - `accepted` integer
  - `response_status` ResponseStatus
    - `error_code` string, nullable
    - `message` string, nullable
    - `stack_trace` string, nullable
    - `errors` ResponseError[], nullable
      - `error_code` string, nullable
      - `field_name` string, nullable
      - `message` string, nullable
      - `meta` object, nullable
    - `meta` object, nullable

---

[API](https://skmtc.net/solcast/apis/solcast-api.md) · [All operations](https://skmtc.net/solcast/apis/solcast-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/solcast/solcast-api/revisions/591461e66c79/schema)