EDF / 2018 Reference document

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PRESENTATION OF EDF GROUP Description of the Group's activities

Commissioning schedule and construction cost On 25 July 2018 (1) , the Group presented a progress report on these checks and amended the schedule and construction cost target accordingly: the target for fuel loading has been set for the end of the 4 th quarter of 2019, ■ with hot functional testing then scheduled to begin at end of 2018; the construction cost target was increased from €10.5 to €10.9 billion (2) . ■ On 21 January 2019 (3) , EDF announced that the hot functional testing schedule had been reviewed with a start expected in the second fortnight of February 2019. Hot functional testing began on 22 February 2019. The schedule and the estimate of the construction cost remain tight. They include a timetable of administrative authorisations by the ASN described above, which depends, in particular, on the completion of the examination of the procedures considered by EDF for processing the welds in the main secondary system, as stated in the press release published by the Group on 31 January 2019 (4) . The ASN Chairman announced on 29 January 2019 that the ASN would issue a statement in May 2019 concerning the validation programme on the welds in the main secondary system and that “if it turns out that the eight welds in the reactor containment building structure also need replacing then it will no longer be possible to meet the deadline.” A precise update of the progress of the Flamanville EPR site, in particular on its schedule and its construction cost, will thus be issued after the ASN ruling has been published. At this stage, EDF is not able to measure the impact of the ASN's decision, which would not validate the proposed approach. On 11 March 2019, EDF sent the Ministry of Ecological and Solidarity Transition a request to amend the construction authorisation decree to extend the deadline for commissioning the reactor until 11 April 2023 as a precaution. Other “New Nuclear” projects 1.4.1.2.2 UK In the UK, EDF Energy owns 66.5% of the construction project of two nuclear plants at Hinkley Point, with the remaining 33.5% owned by China General Nuclear Power

Corporation (CGN). Nuclear New Build (NNB) is the project owner and the New Nuclear Projects and Engineering Department is responsible for the design studies. EDF is also working, as part of its partnership with CGN, on two nuclear construction projects in the UK: Sizewell C and Bradwell B. See section 1.4.5.1.2.5 “Nuclear New Build Division”. Taishan EPR In China, EDF owns 30% of TNPJVC (Taishan Nuclear Power Joint Venture Company Limited), which was set up to build and operate two EPR nuclear reactors in Taishan, in the province of Guangdong in China. CGN holds a 51% stake and Yudean a 19% stake. In 2018, Unit 1 reached major commissioning milestones: loading of fuel in the vessel; ■ connection to the electricity grid; ■ operation at full power; ■ commercial commissioning, announced on 13 December 2018, whereby the ■ Taishan nuclear plant became the first EPR to start commercial operations. Unit 2 has reached a number of important milestones of the performance testing phase. EDF continued to provide technical support to the Taishan project, while simultaneously incorporating feedback from these activities for other EPR projects. Regarding Unit 2, several major tests have been performed. Cold performance testing, including the hydraulic test of the primary system, were completed in July 2018; the containment building leak test was successfully carried out in October 2018 and hot functional testing ended in January 2019. The Taishan EPR project will continue in 2019 for unit 2 with the preparation of fuel loading in the vessel. The issue in the 1 st half of 2019 concerns the delivery by the Chinese safety authority of the authorisation to start.

ee EDF press release of 25 July 2018 “Welds in the main secondary system of the Flamanville EPR: EDF sets up corrective actions and adjusts schedule and target construction (1) costs”. In 2015 euros, excluding interim interest. (2)

See EDF press release of 21 January 2019 “Flamanville EPR: status update” on the scheduling of the hot tests. (3) See EDF press release of 31 January 2019 “Flamanville EPR: status update” on the ASN's statements. (4)

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I Reference Document 2018