""" Demand for electricity in 2023 was 29.6 GW on average (259 TWh over the year), supplied through 235 TWh of UK-based generation and 24 TWh of energy imports.[4] """
Hopefully this is paired with reduced coal burning in the places Britain relies on for power, and improvements in efficiency. The wastefulness of British houses is something to behold...
Of course, there's also the energy used to build things that Britain imports that used to be made domestically, not accounted for here.
Britain seems to be doing reasonably well w.r.t. energy imports though - https://www.statista.com/statistics/550304/electricity-impor...
From https://www.statista.com/topics/4938/energy-imports-in-the-u...
""" Although historically relatively self-sufficient in covering domestic energy demand, the United Kingdom’s dependency on imports has increased in the past few decades. With oil and gas fields on the continental shelf depleting and the government phasing out coal, the country has grown increasingly reliant on supplies from other countries. Energy dependency reached its peak in 2013, at nearly 48 percent. Thanks in large part to growing capacity additions of wind power and a decline in primary energy consumption, the dependency rate had fallen to some 35 percent since. This is notably lower than the European Union average. """