EDF / 2020 Universal Registration Document

1 THE GROUP, ITS STRATEGY AND ACTIVITIES Description of the Group’s activities Électricité de Strasbourg (ÉS) 1.4.4.4 Électricité de Strasbourg (ÉS) is an Alsatian energy producer which is committed to the long-term energy and economic performance of its territory via its four activities: the distribution of electricity, supply of energies, energy services and the production of renewable energies. This portfolio of activities makes it possible for the ÉS group to better provide support to its customers in the energy transition. ÉS also provides services to Local Distribution Companies (Entreprises Locales de Distribution, or LDCs), mainly in eastern France. The ÉS group is 88.64% owned by EDF, and the remaining shares are owned by the public and its employees. Its shares are traded on Euronext Paris. Distribution 1.4.4.4.1 Strasbourg Électricité Réseaux is the ÉS subsidiary in charge of distribution. It is an independently managed subsidiary responsible for public electricity distribution network management. Strasbourg Électricité Réseaux operates, maintains, develops and renews an electricity network of over 15,000 kilometres in the 400 Alsatian municipalities that chose it 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 566,000 points of delivery for low and high-voltage (A and B) power, as well as connections with the Enedis network and two other downstream network operators. Sales and marketing 1.4.4.4.2 ÉS Énergies Strasbourg is the sales and marketing subsidiary of ÉS. At end-2020, ÉS Énergies Strasbourg supplied power to more than 555,000 electricity customers (including renewable), and nearly 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 manage their energy consumption. 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. For its part, ÉS Énergies Strasbourg is active in the development of solar power and the promotion of alternative mobility, for instance in electric vehicle recharging infrastructure. Energy services 1.4.4.4.3 ÉS Services Énergétiques, a subsidiary specialising in energy services, is owned 50-50 by ÉS and Dalkia. In energy transition, ÉS Services Énergétiques is positioned as a provider of sustainable solutions and a creator of energy performance, with attractive offers on world performance markets and for energy performance contracts, as well

as managing and securing networks (heat, electricity, and street lighting networks). It also carries out engineering for mass catering providers. ÉS Services Énergétique operates three major heating networks in the Strasbourg Eurométropole and the biomass power plant that provides these networks with green energy, with a net gain of 40,000 tonnes of CO 2 per year: the equivalent of emissions from 17,000 cars.

Renewable energy generation 1.4.4.4.4 Deep geothermal energy

ÉS is one of the leading players in deep geothermal energy in France. It has been operating the first deep geothermal power plant for industrial use at Rittershoffen, whose production is steadily rising, for four years now. It should achieve an average of approximately 182GWh (thermal) of renewable superheated water from a geothermal source located at a depth of over 2,500 metres. ÉS also operates the Soultz-sous-Forêts power plant, which generated 4GWh (electric) in 2020. In 2017, ÉS launched the Illkirch Graffenstaden geothermal project, designed to supply power to the future heating network of the Innovation Park and surrounding areas. This project is being carried out by the wholly-owned subsidiary, ÉS Illkirch Géothermie. This project is designed to produce both heat and electricity. The first borehole reached the target depth of 3,400 metres in August 2019. The results achieved on tests on this first borehole show a significant difference compared to expected performance. Modelling studies were therefore undertaken in 2020; these will last several months. The different technical and financial simulations carried out since then on this basis show that at present, it is uncertain as to whether there is the capacity to recover the amounts already engaged on the Illkirch project. Consequently, the assets in question were depreciated at 31 December 2020. Seismic events in November, and in particular the event on 4 December 2020 in the Strasbourg conurbation, with a magnitude of 3.5, caused by a third party, resulted in the Bas-Rhin Prefecture ordering an administrative enquiry conducted by DREAL (1) , and announcing the temporary suspension of geothermal projects underway in the press. Strasbourg Eurométropole decided to set up an Investigation and Evaluation Mission ( Mission d’Information et d’Evaluation – MIE) into deep geothermal energy. Biomass The Strasbourg biomass cogeneration plant uses residue from the wood industry in the Vosges and Black Forest mountains. This 37W thermal power plant produces each year 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. Hydropower The Le Framont hydropower plant, inaugurated in September 2019 with capacity of 400kW, allows production of approximately 1.5GWh/year (subject to water availability), equivalent to the annual electricity consumption of 350 homes.

(1) Regional environment, land use and housing authorities (DREAL).

62

www.edf.fr

EDF - UNIVERSAL REGISTRATION DOCUMENT 2020