NO

wait if you can in Cardiff

345 gCO₂/kWh

cheapest (187 g) peak (356 g)

data may be stale — as of loaded

Cardiff · DNO K · National Grid Electricity Distribution

next 24 hours

cheapest 13:00 · 187 g peak 23:30 · 356 g

good time for…

  • dishwasher no cheap window in 48 h
  • washing machine no cheap window in 48 h
  • tumble dryer no cheap window in 48 h
  • EV top-up no cheap window in 48 h
  • EV full charge no cheap window in 48 h
  • immersion heater no cheap window in 48 h
  • oven roast no cheap window in 48 h

about Cardiff

Cardiff draws its electricity from the National Grid Electricity Distribution distribution network — DNO region K. The answer above is the live carbon-intensity forecast for that region, published every half-hour by the National Energy System Operator. Households across Cardiff share the same regional grid, so the answer is the same whether you're in CF10 or a few outcodes over.

If you're on Octopus Agile, your half-hourly price tracks the same wholesale market that drives carbon intensity in Cardiff's grid. For everyone else on a fixed-rate tariff, the answer is the honest "is now a good time to use power" signal — your bill won't change, but the grid is greener when wind and solar are doing the work.

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