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Electricity Markets
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Electricity Markets Messages
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Athens, 30/12/2025
SIDC Intraday Auction: IDA Cancellation
Due to technical reasons or market issues, the auction IDA1
with delivery date 31-12-2025 was cancelled.
Athens, 09/12/2025
SIDC Intraday Auction: IDA Cancellation
Due to technical reasons or market issues, the auction IDA1
with delivery date 10-12-2025 was cancelled.
Athens, 29/11/2025
SIDC Intraday Auction: IDA Cancellation
Due to technical reasons or market issues, the auction IDA1
with delivery date 30-11-2025 was cancelled.
Athens, 24/11/2025
Waiver for Market Maker obligations
HEnEx informs the Members of the Derivatives Market that, following a relevant request by the Market Maker PPC S.A. due to technical issues, it is lifting the obligations for the provision of order pairs for all Series for which there was an obligation to provide binding bid–ask quotes for the Trading Day 24/11/2025.
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Home_Gas_Markets_Title
Natural Gas Trading Platform
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Home_Market_Messages_GAS
Natural Gas Trading Platform Messages
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Call Auction on 05.03.2026 , 20:00 EET
HEnEx would like to inform Market Participants about the Auction of Natural Gas Trading Platform with the following details:
| Delivery Date [Gas Day]: | 05.03.2026 |
| Product Code: | GRGD260305 |
| Balancing Gas Quantity: | 3.000.000 kWh |
| Side: | Sell |
| Auction Date and Time: | 05.03.2026 , 20:00 EET |
The Order Book will remain open for thirty (30) minutes.
Call Auction on 28.02.2026 , 19:00 EET
HEnEx would like to inform Market Participants about the Auction of Natural Gas Trading Platform with the following details:
| Delivery Date [Gas Day]: | 28.02.2026 |
| Product Code: | GRGD260228 |
| Balancing Gas Quantity: | 12.000.000 kWh |
| Side: | Sell |
| Auction Date and Time: | 28.02.2026 , 19:00 EET |
The Order Book will remain open for thirty (30) minutes.
Call Auction on 26.02.2026 , 20:00 EET
HEnEx would like to inform Market Participants about the Auction of Natural Gas Trading Platform with the following details:
| Delivery Date [Gas Day]: | 26.02.2026 |
| Product Code: | GRGD260226 |
| Balancing Gas Quantity: | 3.000.000 kWh |
| Side: | Buy |
| Auction Date and Time: | 26.02.2026 , 20:00 EET |
The Order Book will remain open for thirty (30) minutes.
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Home_News_Announcements
News - Announcements
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Introduction to Energy Derivatives Market
The Hellenic Energy Exchange organizes on Wednesday, September 4, 2020 at its premises an introductory workshop for the Energy Derivatives Market.
The workshop program and participation details can be found here.
Public Consultation on Derivatives Market Rulebook
HEnEx launches a public consultation on the draft Financial Energy Market Rulebook (Derivatives Market).
According to the provisions of article 15 par. 1 and 2 of Law 4425/2016, the Hellenic Energy Exchange S.A. may act as a market operator and operate Energy Derivatives Markets, following the approval of the Hellenic Capital Market Committee (HCMC), given that the provisions of Law 4514/2018, EU Regulation No 600/2014 and the delegated Regulation, are met.
HEnEx has authored a draft Financial Energy Market Rulebook (Derivatives Market), for which it launches a Public Consultation in order to achieve maximum consensus with the prospective Members of the Energy Derivatives Market, regarding the provisions of the Rulebook.
In the context of the Public Consultation described above, HEnEx will gather and elaborate on the comments which will be submitted, so as to finalize the provisions of the Rulebook before its submission to the competent authorities.
All stakeholders are requested to submit their opinions/views on the text of the Rulebook, by sending an e-mail to the address consultation@enexgroup.gr with the following subject: "Public Consultation on the draft Financial Energy Market Rulebook (Derivatives Market)”.
End of the Public Consultation: 10/09/2019 (extension until 16/09/2019)
Spot Market Business Model & Systems
The Hellenic Energy Exchange organizes at its premises on Wednesday 24th of July 2019 a workshop for "Spot Market Business Model & Systems".
The workshop program and participation details can be found here.
Presentations:
DAM & IDM Membership & Start-Up
Clearing & Settlement Business Processes
Order types in the new HEnEx DAM & IDM auctions
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Exams/Seminars
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HEnEx's “Energy Trader Certification - Electricity (ETC-E)” Exam Invitation
HEnEx invites all interested parties to “Energy Trader Certification - Electricity (ETC-E)” Exam, which will take place on 19th March 2026. The registration form can be found here.
Registration for “HEnEx Energy Traders Seminar: Day-Ahead & Intra-Day Markets”
The Hellenic Energy Exchange invites all the interested parties to “HEnEx Energy Traders Seminar: Day-Ahead & Intra-Day Markets”, which will take place on 17th March 2026. The registration form can be found here.
Introduction of Energy Storage in HEnEx Day Ahead & Intra-Day Markets
The Hellenic Energy Exchange invites all interested parties to a workshop, which will take place online on 19th February 2026. The scope of the workshop is to present integration of Energy Storage into the HEnEx Day Ahead & Intra-Day Markets.
The registration form can be found here.
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Detailed information about the cookies we use, can be found in our cookies policy.