Since electricity cannot be stored, EDF has to supply just the right amount of electricity, matching customer demand, at all times, at best cost.The aim of optimisation is to predict this demand and implement the necessary trade-offs between the resources available to satisfy demand(production resources, long-term supply contracts, purchases on wholesale markets, etc.). Optimisation of EDF’s production also consists incovering physical, financial, and market risks.
Regulatory notice
Regulation (EU) No. 1227/2011 (REMIT regulation) on the integrity and transparency of wholesale energy markets entered into effects on 28 December2011 and is designed to enhance consumers and market players confidence in the integrity of electricity and gas markets.
Strengthening wholesale energy market integrity and transparency must foster open and fair competition on these markets, in particular so that prices set on these markets reflect a fair and competitive interplay between supply and demand. The regulation prohibits insider trading and market manipulation, and establishes an obligation to publish inside information as defined in the REMIT.
The European Agency for the Cooperation of Energy Regulators (ACER) is primarily responsible for monitoring wholesale trades in energy products, in order to detect and prevent transactions based on inside information and market manipulations. ACER also collects the data needed to assess and monitor markets. The regulation provides that market participants, or a person authorised to do so on their behalf, provide ACER with a detailed statement of the transactions in the wholesale energy market.
Market participants that perform transactions for which a declaration to ACER is mandatory must register with the national regulatory authority of theMember State in which they are established (the CRE in France) or, if they are not established in the European Union, that of a Member State in which they do business.
At a national level, national regulation authorities also work together and monitor wholesale energy product trading; Member States determine the regime for sanctions applicable to REMIT breaches.
In France, the applicable regulations are as follows:
The balance between electricity supply and demand is managed right down to areal-time basis, in line with the framework established by risk policies, developed inline with the Directives issued by the Group’s Risk Control Department and validated by EDF’s Executive Committee (see section 2.2.2 “Financial and market risks”, risk factor 2C “Energy market risk”). Climate variations affect this management. Hence, a fall in temperature of 1° C in winter leads to a rise in electricity consumption in France of the order of 2,400MW(1) and EDF’s portfolio bears a large part of this thermosensitivity. In addition, depending on the run-off, the amplitude of hydraulic generation in the EDF scope, between one extreme year and another, can amount to around 20TW hours.
The DOAAT ensures that it has, in all timeframes, sufficient resources in order to enable it to meet its commitments. To do this, it manages a set of leveraged actions:
DOAAT also manages the exposure of EDF’s upstream/downstream portfolio to price variations in the energy and fuel (gas, coal, petroleum products) wholesale markets and in the CO2 emissions licensing market, with the assistance of EDF Trading.
With respect to RTE, DOAAT plays the role of “balance responsible entity” on EDF’s perimeter in mainland France. In this regard, EDF is committed to financially compensate RTE in the case of a deviation onto its balance group. The optimisation consists of offering RTE an offer schedule that is balanced with the demand, which makes it possible to minimise the supply cost of EDF’s contractual commitments.
EDF maintains commercial relations through energy purchase or sales contracts withEuropean operators. These contracts are of many types, and confer:
(1) Source: RTE.