ANNUAL RESULTS 2020

Strategy and investments ESG Renewables Regulated France Generation and supply Consolidated sales EXISTING NUCLEAR FLEET AND "GRAND CARÉNAGE" PROGRAMME A COMPETITIVE ENERGY MIX GRAND CARÉNAGE PROGRAMME Industrial strategy to continue the operation of plants after 40 years for a competitive energy mix: • • Operational data and markets Technical capacity of the plants to operate beyond 40 years supported by international benchmarks for similar technologies Extension from 40 to 50 years of the depreciation period of the 900MW nuclear fleet (except Fessenheim) accounted as of 1 January 2016: the Tricastin 1 and Bugey 2 (back to the grid on 15 February 2021) reactors are the first to have successfully completed their 4th ten-year inspection and thereby crossed the 40-year milestone. Strategy confirmed by the guidelines given by multi-year energy programme (PPE) Programme integrating the totality of the investments in the existing nuclear fleet over the 2014-2025 period, and beyond. • In 2015, initial investment programme on the 2014-2025 period was estimated at € 201355bn (1) and was optimised and revised to € 201345bn (€48.2bn in current euros) in 2018. • In October 2020 (2), it was adjusted at €49.4bn in current euros on the same 2014-2025 period. The new cost estimate accounts mainly for the first findings on the works to be conducted in the context of the ongoing review process related to the fourth periodic safety review of the Group's 900MW reactors which was concluded with the ASN positive decision rendered on 23 February 2021. The review focuses on studies, modification work and initially unplanned additional equipment seeking to improve safety levels. Moreover, the estimate factors in the expected increase in the duration of planned maintenance outages including ten- year and partial inspections. The costing also draws on prior year experience as well as the impact of the health crisis as estimated in 2020, applied to 2020-2022 (3). €m 6.000 5.000 4.000 3 000 2 000 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Current figures €49.4bn 2026 2027 2028 2029 2030 (1) The figures presented by the French Cour des Comptes in its report of 10 February 2016 cover a longer time horizon, up to 2030, and included, beyond the investment, operating and maintenance expenses. Both assessments are consistent, as stated by the Cour des Comptes in its report. Indeed, among the overall estimates calculated by the Cour des Comptes and amounting to close to €2013 100 billion for the 2014-2030 period, the investment -expenditures estimated at € 201374.73 billion should be distinguished from the operating expenditures estimated at €201325.16 billion. Within the €201374.73 billion of investment expenses between 2014 and 2030, €201355 billion are dedicated to the 2014-2025 period, which allows the two estimates established by the EDF group and the Cour des Comptes to be connected (2) See press release of 29 October 2020 (3) This does not include any subsequent lockdown or other restrictive measures affecting activity EDF SALES FIRST QUARTER 2021 23

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