Observed arrival · 2026-09-04
NerdyWatts — Every US residential electricity tariff, priced.
A residential electricity tariff database and calculator covering rates from utilities across the United States.
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NerdyWatts separates a catalog of 6,357 tariffs from the 911 it considers recent and sufficiently specified for current pricing. Its methodology accounts for details such as thresholds that reset daily, time-of-use schedules varying by month and weekday, and fixed charges billed per day. The site also identifies 344 rates that it will not estimate from consumption alone, keeping those entries out of false-precision comparisons.
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