Utilities (fuel & water) · code 3500
Electricity bill price in Japan
電気代
Key facts
As of September 2026, electricity bill prices in Japan are down 2.3% year on year and up 6.5% over five years. The official consumer price index stands at 109.3 (2020 = 100), up 99.1% versus January 1970, when the series begins.
Electricity bill sits in the utilities (fuel & water) group of Japan's CPI basket, with 681 monthly observations from January 1970 to September 2026. The series peaked at 131.0 in January 2023 and bottomed at 54.4 in June 1973; the latest reading is -16.6% against that peak. Against ten years ago it is +20.2%.
Latest CPI
109.3
2026-09 (2020=100)
YoY %
-2.3%
5y change %
+6.5%
Change since 1970-01
+99.1%
Annual average index by year
| Year | Index | YoY % | Months |
|---|---|---|---|
| 2015 | 101.4 | -0.7% | 12 |
| 2016 | 93.4 | -7.9% | 12 |
| 2017 | 96.3 | +3.1% | 12 |
| 2018 | 100.7 | +4.6% | 12 |
| 2019 | 103.7 | +3.0% | 12 |
| 2020 | 100.0 | -3.6% | 12 |
| 2021 | 100.0 | 0.0% | 12 |
| 2022 | 120.1 | +20.1% | 12 |
| 2023 | 104.5 | -13.0% | 12 |
| 2024 | 112.2 | +7.4% | 12 |
| 2025 | 118.1 | +5.3% | 12 |
| 2026 | 114.5 | -3.0% | 9 |
Average of the monthly index values in each year (2020 = 100). Blank months are excluded.
Frequently asked questions
- How much have electricity bill prices changed in Japan over the past year?
- As of September 2026, -2.3% year on year, measured by Japan's official consumer price index (2020 = 100).
- How much have electricity bill prices changed in Japan over the past five years?
- +6.5% compared with the same month five years earlier. The index now reads 109.3.
- When were electricity bill prices in Japan at their highest?
- The series peaked at 131.0 in January 2023. The latest reading is -16.6% against that peak.
- What is the difference between the index and the yen price?
- This page carries two kinds of number. The index (2020 = 100) measures percentage change over time and is not a yen amount; the yen figure is an actual average retail price from the government's retail price survey. Source: 総務省統計局 消費者物価指数 (e-Stat table 0003427113, nationwide, monthly).