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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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Natural Gas Trading Platform
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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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News - Announcements
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Clearing Fund amount for Day-Ahead & Intraday Markets
EnExClear, as the Clearing Fund Administrator, in accordance with Part 8, Section 2.27, of Clearing Rulebook for Transactions on Day-Ahead & Intraday Markets, announces that the Day-Ahead & Intraday Markets Clearing Fund is set at € 62,299,660.53 for the calculation period August 2022.
Clearing Fund amount for HEnEx's Natural Gas Trading Platform
EnExClear, as the Clearing Fund Administrator, in accordance with Part 8, Section 2.27, of Clearing Rulebook for Transactions on HEnEx’s Natural Gas Trading Platform, announces that the Natural Gas Trading Platform Clearing Fund is set at € 4,969,148.24 for the calculation period August 2022.
23 August 2022: Harmonised maximum clearing price for SDAC to be set to +5,000 EUR/MWh from 20th September (trading date)
In line with the Harmonised Maximum and Minimum Clearing Prices (HMMCP) Methodology in accordance with Article 41(1) of Commission Regulation (EU) 2015/1222 of 24th July 2015 (CACM Regulation), the harmonised maximum clearing price for Single Day-Ahead Coupling (SDAC) shall be increased by 1,000 EUR/MWh if the clearing price exceeds a value of 60 per cent of the harmonised maximum clearing price for SDAC in at least one market time unit in a day in an individual bidding zone or multiple bidding zones. This decision follows the high prices of 4,000 EUR/MWh reached on 16th August 2022 (delivery date 17th August) in Lithuania, Latvia and Estonia in hour 18.
Press release can be found here.
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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.