A comparison of 43 electricity providers and 69 plans in the Shikoku area identified the cheapest plan for each household size. ENEOS Denki's V Plan is said to be the cheapest for single-person households, while Machi Ene's Basic Plan is said to be the cheapest for households of 2 or more.
This article compares electricity rates across 43 providers and 69 plans in the Shikoku area, covering 12 patterns combining households of 1 to 4 people with daytime and nighttime lifestyles. The review was conducted independently by mybest, based on information available as of 10 September 2026. The comparison indicates that the breakdown of the total cost, including the basic charge, electricity usage charge, fuel cost adjustment, renewable energy surcharge and campaigns, affects the results.
Under the conditions for a single-person household, ENEOS Denki's V Plan was judged to be the cheapest option, with estimated monthly bills generally ranging from the ¥5,000s to the low ¥10,000s.
For households of 2 or more, Machi Ene's Basic Plan is said to be the cheapest. As with other plans, the actual monthly bill varies depending on household composition and usage.
The difference between fuel cost adjustment and market-linked pricing is said to affect price volatility, and reports indicate that the risk of higher market prices is elevated in 2026. The view presented is that choosing a fuel cost adjustment plan with a cap can mitigate volatility risk.
Switching electricity providers may be completed in as little as 5 minutes, although the change may be reflected later depending on the meter-reading date, and actual supply commencement may take up to about 1 month.