Centrica Results Presentation Deck

Upstream - Nuclear NUCLEAR Year ended 31 December (£m) Adjusted operating profit (£m) Nuclear power generated (GWh) Achieved power price (£/MWh) Achieved power price (£/MWh) 2020 2021 51.3 46.6 2020 (17) 9,134 51.3 2021 (38) 8,342 46.6 A 124% Power generated Total (GWh) 2020 (9%) (9%) 2021 9,134 8,342 The above adjusted figures are before exceptional items and certain re-measurements. Adjusted operating profit includes share of joint ventures and associates after interest and taxation. A reconciliation of adjusted operating profit is provided in the Group Financial Review in the Preliminary Results announcement. 41 Centrica plc Preliminary Results 2021 centrica

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