Data Collection

Principles

To complete its task of monitoring energy wholesale markets, CRE periodically collects information relating to the decisions taken by market participants on the French wholesale markets.

Three types of data are collected: transactional data (transactions, orders, etc), fundamental data (consumption, generation, use of the networks, storage, interconnections, etc) and general data (prices, etc). To reduce the data collection burden on market participants, CRE prefers to collect data from TSOs, brokers and exchanges.

In its analyses, CRE also uses public data sourced from various European market locations and professional trade reviews.

When it deems appropriate, CRE may collect all the necessary information from those companies active on the electricity or natural gas market. CRE may also obtain data from any individual whom it considers likely to provide relevant information.

Data collected

Electricity

Injections and withdrawals on the transmission grid

Monitoring the markets requires knowledge of the activity of market participants within the different wholesale and retail segments and the use of their interconnection capacities.RTE (the French transmission system operator) provides CRE with the hourly nominations of each balancing responsible entity for each market segment (production, supplies to consumption sites, notification of block trades, VPP, interconnection flows etc.).

Use of the production system

The correct use of the French production system is essential for competitive price formation, in particular on the day-ahead market (purchase for delivery the following day). Use of the production system must be consistent with the producers’ technical and financial constraints.

  • CRE collects nominations by the producers, sent to RTE as part of the programming/balancing mechanism: 
     
    • production programmes (call programme)
    • technical constraints of generation units
    • primary/secondary reserves
    • offers on the balancing mechanism
  • CRE also collects the following data from the main producers:
     
    • the information used to rate production by each production group on the day-ahead market
    • information explaining unavailable periods for their generating units

Production transparency

Since 15th November 2006, the French electricity union (l’Union Française de l’Electricité) has been providing the market participants with production-related data via RTE’s website.
Monitoring the accuracy of the information published, in particular provisional data, is essential for the correct functioning of the French wholesale energy market.
The following information is published:

  • installed capacity of the reference fleet and availability forecasts of generating units from short term to long term
  • realised generation, effective availability for production units unplanned outages, in periods of 30 minutes, for production units with a capacity above 20 MW

Cross-border transmission capacities

CRE monitors the use of interconnection capacities by market participants.

  • From RTE, CRE collates: 
     
    • the results of auctions for interconnection capacity
    • capacities traded on secondary markets
    • nominations made by market participants on cross-border transmission capacities

Transactions and order books on the French wholesale market

The exchanges (EPEX SPOT and EEX Power Derivatives) and the main brokers active on the French electricity wholesale market (GFI, Global Commodities, ICAP, Marex Spectron, TFS, Tullet Prebon, OTC ex) supply the information relating to the transactions for delivery in France which are performed on their platforms. The information collected relates to intraday, day-ahead and future / forward transactions and covers all traded products, whether their settlement is physical or financial.

  • From Epex Spot, CRE collects orders sent for day-ahead fixing.

CRE also makes sure that trading runs correctly on the EPEX SPOT Auction platform, which has a major role in fixing the day-ahead price. CRE also collects data relating to the correct execution of trades on the EPEX SPOT Auction platform, particularly the price elasticity in supply-demand variations and delays by members in submitting their order books.

Calls for tenders organised by network managers to cover their losses

The loss sales market is a major outlet for players on the French electricity wholesale market. It is necessary to ensure competitiveness of this market segment and consistency of the pricing with prices observed on the French wholesale energy market.

  • From RTE and ERDF, CRE collects:
     
    • offers submitted as part of the call for tenders organised by the two system operators
    • retained offers

Virtual Power Plant (VPP) auctions held by EDF

VPP auctions are a major supply source for players on the French market. These auctions are held by one seller only. It is necessary to ensure that this market segment remains competitive and that auctions are not subject to manipulation.

  • From EDF, CRE receives the results of VPP auctions (products acquired by each buyer, prices fixed by the auctions). Since the withdrawal of EDF in EnBW shares, the VPP mechanism closed after the last auction of November 30th, 2011.

Natural Gas

Injections and withdrawals on the transmission grid

Monitoring the markets requires knowledge of the activity of market participants within the different wholesale segments and the use of their transmission and storage capacities.

CRE collects daily allocations by shipper for each market segment from GRTgaz and TIGF (gas exchange at the French virtual trading points, storage flows, cross-border flows, deliveries to local distribution zones and customers directly connected to the transmission system, etc.)

Data related to capacities

CRE collects as well from the system operators transit, storage and LNG terminals capacities subscribed by market participants, available capacities at all points and information regarding capacity reductions.

Transactions and order books on the French wholesale market

The Powernext Gas exchange and the main brokers active on the French gas market (GFI, Global Commodities, ICAP, Marex Spectron, TFS, Tullet Prebon) provide CRE with information relating to trades with delivery in France. The information collected relates to within day, day-ahead and future / forward transactions. It covers all products traded, whether their settlement is physical or financial.

CO2

A CO2 data collection system is underway.
 Go to page « CO2 Wholesale Market »

Security

Data file transmission

The data requested by CRE as part of market monitoring must be sent in electronic format by email or uploaded on CRE’s secured web exchange platform.
 

Those companies that wish to send information by email may encrypt any electronic files they send. To use the secured web platform, you should:

  • Ask for an account at surveillance@cre.fr
  • Use the credentials you have received by email to connect to the platform
  • Upload the files you need to transmit
  • Validate
  • Then the Monitoring department will receive an email regarding the data upload

File templates

The file templates which should be used to send the data required by CRE are available here:



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