---
title: "Bill Normalization Portfolio"
method: POST
path: "/api/tools/bill-normalization/portfolio"
tags: ["Tools (analyse and convert EPW files)"]
---

# Bill Normalization Portfolio

`POST /api/tools/bill-normalization/portfolio`

## Request

- Base URL: `https://epw.tools`
- URL: `https://epw.tools/api/tools/bill-normalization/portfolio`
- Auth: none declared

Portfolio weather normalisation from one CSV (site, lat, lon, start,
end, usage). Up to 3 sites free; larger portfolios need a purchase
(same rule as batches).

## Headers

- `X-API-Key` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/epw/apis/epw-tools-api.md) · [All operations](https://skmtc.dev/epw/apis/epw-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/epw/apis/epw-tools-api/revisions/e6b60fc7a6d7?raw)