---
title: "Japan electricity bill (TEPCO Juryo Dento B)"
method: GET
path: "/api/v1/jp-electricity"
---

# Japan electricity bill (TEPCO Juryo Dento B)

`GET /api/v1/jp-electricity`

## Request

- Base URL: `https://kwhmate.com`
- URL: `https://kwhmate.com/api/v1/jp-electricity`
- Auth: none declared

Runs the same calculator as https://kwhmate.com/jp/electricity-bill/. Reference: 出典：東京電力エナジーパートナー「従量電灯B・C」・燃料費調整単価等一覧、経済産業省「2026年度の賦課金単価」. Arrays: comma-separated. Also accepts POST with a JSON body.

## Query parameters

- `kwh` number, required
- `amperes` 10 | 15 | 20 | 30 | 40 | 50 | 60
- `fuel_adjustment` number: Fuel cost adjustment, yen per kWh (default: this month)

## Response `200`

Result with source and page URL

- Result
  - `ok` boolean
  - `calculator` string
  - `title` string
  - `currency` string, nullable
  - `input` object
  - `result` object
  - `estimate` boolean
  - `reference` string: Reference date and official source
  - `page` string, uri
  - `disclaimer` string

## Other responses

- `400`: Invalid input
- `429`: Rate limited (60 requests per minute)

---

[API](https://skmtc.dev/kwhmate/apis/kwhmate-korea-survival-kit-calculators-api.md) · [All operations](https://skmtc.dev/kwhmate/apis/kwhmate-korea-survival-kit-calculators-api/llms.txt) · [OpenAPI document](https://skmtc.dev/kwhmate/apis/kwhmate-korea-survival-kit-calculators-api/revisions/90207915728b?raw)