EDF / 2018 Reference document

PRESENTATION OF EDF GROUP Description of the Group's activities

Distribution 1.4.4.4.1 Strasbourg Electricité Réseaux is responsible for public electricity distribution network management. Strasbourg Electricité Réseaux operates, maintains, develops and renews an electricity network of over 14,000 kilometres in the 400 Alsatian municipalities that chose ESR to operate their electricity distribution grids under concession agreement. These concession agreements were renewed between 1993 and 2001 for a term of 40 years. The territory serviced covers three quarters of the Bas-Rhin department and includes more than 520,000 points of delivery for lowand high-voltage (A and B) power, as well as connections with the Enedis network and two other downstream network operators. In order to comply with recent developments in the French Energy Code, ÉS engaged in a process to create subsidiaries for its distribution activities at May 1st 2017. Sales and marketing 1.4.4.4.2 ÉS Énergies Strasbourg is the sales and marketing subsidiary of the ÉS group. At end-2018, ÉS Énergies Strasbourg supplied power to more than 545,000 electricity customers (including renewable), and 113,000 gas customers, to both residential and business customers (services and industrial sectors) or to local authorities. In addition to supplying electricity and gas, ÉS Énergies Strasbourg offers related services such as electricity, gas and plumbing corrective maintenance and digital services designed to help customers better understand their electricity bill and better manage their consumption. Separately, for its residential customers, ÉS Énergies Strasbourg has continued the implementation of support services in renovation and construction of the home, via a portal enabling customers to be in direct contact with a network of local partners. Following the end of the regulated sales tariffs for over 36 kVA in electricity and over 30MWh in gas, ÉS sells 50% of its electricity volumes and 75% of its gas volumes based on the market offering. Competitive offers and its strong local base have enabled ÉS to retain a significant market share. Energy services 1.4.4.4.3 ÉS Services Énergétiques was born out of the association between Écotral, the energy services subsidiary of ÉS, and Dalkia Bas-Rhin, on 1 January 2016. The entity produces and operates energy services installations intended for local governments, homes, healthcare, the tertiary sector and industry. For example, ÉS Services Énergétiques operates and maintains the Strasbourg biomass electricity power plant in Port du Rhin, produces, operates and maintains thermal plants in the new Saint Urbain development zone, and is entrusted with the lighting of the church of Saint Thomas, a historical building in Strasbourg listed as a World Heritage site by UNESCO. In 2018, the Strasbourg city centre heating network was renovated and extended in order to improve safety and supply new areas. Renewable energy generation 1.4.4.4.4 Deep geothermal energy The ÉS group is one of the leading players in deep geothermal energy in France. It holds a 40% equity stake in the ECOGI (Exploitation of geothermal heat for industry) project, which built, in partnership with the Roquette company and the Caisse des Dépôts, the first deep geothermal energy power plant for industrial use at Rittershoffen, with the support of the ADEME, the Grand-Est Region and SAF-Environnement. This power plant has been producing 24MW of thermal renewable superheated water using a geothermal resource located at a depth of more than 2,500 metres since September 2016.

ÉS has also transformed, with its partner EnBW, the deep geothermal energy research site at Soultz-sous-Forêts into an industrial installation for the production of electricity. This geothermal power plant has been producing 1.7MW of electricity since July 2016. In 2017, ÉS launched the Illkirch Graffenstaden geothermal project, designed to supply power to the future heating network which will supply the innovation park and surrounding areas. This project is being carried out by the wholly-owned subsidiary, ÉS Illkirch Géothermie. The investment amounts to €37 million. This power plant with a thermal input of 26MW is a cogeneration plant (heat and electricity generation). The first borehole was drilled in December 2018. The second is planned for early 2019 with the plant scheduled to come into service in 2020. Between June and August 2018, ÉS mapped out a 3D model of the subsoil in northern Alsace over an area of 200km², the largest such mapping in France. The model will help identify the best places to build future plants. Biomass In the area of biomass, the ÉS group commissioned at the end of 2016, through its majority ownership in the ÉS Biomasse company, a biomass cogeneration plant. This power plant produces 70GWh of electricity from renewable sources and 112GWh of heat from renewable sources per year, which feed two of the three principal heat networks for the city of Strasbourg. 1.4.5 United Kingdom 1.4.5.1 EDF group activity in the United Kingdom (UK) is led by EDF Energy and EDF Trading (see 1.4.6.3 “Optimisation and Trading: EDF Trading”). The Group is also active in oil and gas exploration and production in the North Sea via Edison (see sections 1.4.5.2.3.2 “Hydrocarbon business” and 1.4.6.2.2.3 “Exploration and Production”) and in waste recovery through Dalkia Wastenergy (see 1.4.6.1.1 “Dalkia”). EDF Energy is principally active in the generation of electricity in the UK, the supply of electricity to domestic and business customers, the supply of gas to domestic customers, in the construction of new nuclear generation and a minority stake in development and operation of renewable energy project in joint-venture with EDF Renewables. EDF Energy is one of the UK’s largest energy companies and the largest producer of low-carbon electricity, producing around one-fifth of the nation’s electricity from its nuclear power stations, coal and gas power stations and combined heat and power plants. The company supplies gas and electricity to 5.27 million business and residential customer accounts and is the biggest supplier of electricity by volume in Great Britain. EDF Energy is leading the UK’s nuclear renaissance. In partnership with China General Nuclear Corporation (CGN) EDF Energy has a stake in Hinkley Point C power plant construction site in Somerset (EDF holds 66.5% and CGN 33.5%) and is developing further New Nuclear projects at Sizewell (EDF owns 80% and CGN 20% at development stage), in Suffolk, and Bradwell (EDF owns 33.5% and CGN 66.5%), in Essex. The company employs around 12,300 people at sites throughout the country. Total electricity generated overall in the UK in 2018 was c.289TWh and total electricity supplied was c.259TWh (the difference principally reflecting losses on the transmission and distribution networks). Total gas supplied to UK domestic customers in 2018 was 311TWh. INTERNATIONAL ACTIVITIES

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EDF I Reference Document 2018