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Hull draws its electricity from the Northern Powergrid distribution network — DNO region M. The answer above is the live carbon-intensity forecast for that region, published every half-hour by the National Energy System Operator. Households across Hull share the same regional grid, so the answer is the same whether you're in HU1 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 Hull'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.