Observed arrival · 2026-09-29
HomeWattCost: Electricity costs by utility and hour
A set of calculators estimates electricity costs using utility-specific rates for EV charging, appliances, rate-plan comparisons, heating, and solar payback.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- U.S. electricity customers comparing utility rates
- Worth noticing
- The utility selector includes named local providers and state-average fallbacks; examples show rates varying by hour.
Field notes
The homepage offers six calculator paths: EV charging, rate-plan comparison, appliance costs, cheapest-use timing, heat-pump-versus-gas costs, and solar payback. Visitors can select named utilities—including local providers—or a state-average fallback; examples include PG&E time-of-use rates and a Denver heat-pump comparison. The page says its calculations use utility tariffs and that each number carries a source and date.
Observed signals
Read the marks
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
One card from the complete issue