The equivalent number of homes which could be supplied is calculated by:

Wind farm installed capacity (in MW) multiplied by the number of hours in one year (8,760) multiplied by the DESNZ’s average load factor (%) for offshore wind over the last three years published within the Digest of United Kingdom Energy Statistics, Table 6.3, DESNZ, 2025), divided by the average annual household energy consumption (in MWh) (being the average annual household energy consumption over the last three years of  data published within Energy Consumption in the UK 2025, Table C9, DESNZ, 2025).

For the Bellrock Offshore Wind Farm, this is calculated by: 1,800 (installed capacity) x 39.3% (average load factor) x 8,760 (hours per year) / 3.487 (average annual household energy consumption) = The Bellrock Offshore Wind Farm has the potential to power up to 1,772,752 homes with renewable energy.

The amount of CO2 displaced which could otherwise have been produced from gas, is calculated by:

The Department of Energy Security and Net Zero’s ‘all non-renewable fuels’ emissions statistic of 377.7 tonnes of carbon dioxide per GWh of electricity supplied, as published in the Digest of UK Energy Statistics (July 2025) Table 5.14 (‘Estimated carbon dioxide emission intensity of electricity supplied (gas)’, multiplied by the estimated annual renewable energy production from the project (i.e. the wind farm installed capacity (in MW) multiplied by the number of hours in one year (8,760) multiplied by the average load factor for offshore wind (being the average load factor for offshore wind over the last three years of  data published within the Digest of United Kingdom Energy Statistics, Table 6.3, DESNZ, 2025).

For the Bellrock Offshore Wind Farm, this is calculated by: 377.7 (Estimated carbon dioxide emission intensity of electricity supplied (gas)) x (1.8 (installed capacity in GW) x 39.2% (average load factor) x 8,760 (hours per year)) = The Bellrock Offshore Wind Farm has the potential to displace up to 2,334,585 tonnes of carbon dioxide which could otherwise have been produced from gas fuelled electricity generation.