Observed arrival · 2026-10-14
Kilowise’s electricity-bill comparison checker
A Japanese tool for comparing electricity plans across 10 regions, using your current contract and monthly usage to estimate the difference.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Japanese households comparing electricity contracts
- Worth noticing
- Of 224 plans, 81 lacked published rates for November 2026 onward; their increases are estimated using the regional utility’s increase.
Field notes
The main comparison uses 260 kWh per month, with plan pages also providing differences at 150 and 400 kWh. Users can inspect both recent-rate calculations and a high-price scenario based on 2022–23 data; the site also explains fuel-cost adjustments and switching drawbacks. For 81 of its 224 plans, rates for November 2026 onward were not published, so the site calculates those cases using the corresponding regional utility’s increase.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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