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, 2023), 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 2023, Table C9, DESNZ, 2023).

For the Bellrock Offshore Wind Farm, this is calculated by: 1,200 (installed capacity) x 41.3% (average load factor) x 8,760 (hours per year) / 3.694 (average annual household energy consumption) = The Bellrock Offshore Wind Farm has the potential to power up to 1,175,368 homes with renewable energy.

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

The Department of Energy Security and Net Zero’s ‘all non-renewable fuels’ emissions statistic of 424 tonnes of carbon dioxide per GWh of electricity supplied, as published in the Digest of UK Energy Statistics (July 2023) Table 5.14 (‘Estimated carbon dioxide emissions from electricity supplied’), 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, 2023).

For the Bellrock Offshore Wind Farm, this is calculated by: 424 (all non-renewable fuels emissions statistic) x (1.2 (installed capacity in GW) x 41.3% (average load factor) x 8,760 (hours per year)) = The Bellrock Offshore Wind Farm has the potential to displace up to 1,840,777 tonnes of carbon dioxide which could otherwise have been produced from fossil fuel.