Observed arrival · 2026-10-03
nenonak: finding the cheaper hour for household appliances
A calculator that estimates what household appliances cost to run and suggests when to use them, based on region, electricity tariff, and solar production.
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- Households in Belgium and France with electric appliances
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- The estimate compares four Tuesday-by-season profiles and searches for the cheapest complete appliance cycle in the next 24 hours.
Field notes
The estimate asks users to choose a region, meter type, whether they have panels, their usual start time, and weekly machine counts; kWh prices are optional. The FAQ says missing prices are replaced with regional official averages and identified as estimates. Solar assumptions include south-facing panels at 35 degrees, estimated 350 Wc per panel, and a 0.04 €/kWh surplus resale price.
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