The Department for Business, Energy and Industrial Strategy does not hold data at this level of disaggregation covering all UK generation. Monthly electricity generated by Major Power Producers in February 2018 will be published in Energy Trends table 5.3 on 26th April. Total quarterly UK electricity generated in Q1 2018 will be published in Energy Trends table 5.1 on 28th June. Data will be available at this link:
However, for the Public Distribution System in Great Britain only, Elexon’s figures show that in the week commencing 26th February 2018, on average 25.1 per cent of electricity generated was from coal each day.
Source: Elexon half-hourly balancing mechanism reports, available at https://www.bmreports.com/bmrs/?q=generation/fueltype.