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

# Bill Normalization

`POST /api/tools/bill-normalization`

## Request

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

ASHRAE Guideline 14 change-point fit of utility bills to weather
(backend/bill_normalization.py). Model, coefficients and G14
statistics are free with an account; the weather-normalised annual
usage, per-bill table and CSV come with any purchase.

## Headers

- `X-API-Key` string, nullable

## Request body

- BillNormRequest
  - `lat` number, required
  - `lon` number, required
  - `bills` object[], required
  - `reporting_bills` object[], 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)