---
title: "Peak demand for all sites"
method: GET
path: "/v1/sites/peakDemand"
tags: ["Sites"]
---

# Peak demand for all sites

`GET /v1/sites/peakDemand`

Retrieves peak power demand data across all sites

## Response `200`

Peak demand data retrieved successfully

- PeakDemand[]
  - `siteId` string — Site identifier
  - `peak` number — Highest average power in a settlement interval (typically 30 minutes), in kW. This is measured maximum demand, not contracted MIC (kVA).
  - `timestamp` string, date-time — Start of the interval that set the peak
  - `averageDemand` number — Mean power over the requested window, in kW
  - `loadFactor` number — Average demand divided by peak, as a percentage. High values mean the site uses its peak steadily; low values mean a short spike.

## Other responses

- `4XX` — Client error response

## Changes

- **2025-12-09** `d899129585db` — 2 breaking
  - the response property `items/peak` became optional for the status `200`
  - the response property `items/siteId` became optional for the status `200`
- **2025-11-17** `1ecbbc9bbafb` — 2 info
  - the response property `items/peak` became required for the status `200`
  - the response property `items/siteId` became required for the status `200`

[Change history](https://skmtc.dev/voltview/apis/voltview-api/changes/v1/sites/peakDemand/get.md)

---

[API](https://skmtc.dev/voltview/apis/voltview-api.md) · [All operations](https://skmtc.dev/voltview/apis/voltview-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/voltview/voltview-api/revisions/88ea877c058e/schema)