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Electricity Markets

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Electricity Markets Messages

Athens, 22/06/2026
SIDC Intraday Auction: IDA Partial Decoupling

Due to technical reasons or market issues, the following VB(s) have been decoupled from the IDA3 for the delivery date 22/06/2026

HEnEx

Please note that a partial decoupling leads to cancellation without local auctions for the affected VB/VBs.

Athens, 17/05/2026
SIDC Intraday Auction: IDA Cancellation

Due to technical reasons or market issues, the auction IDA1 
with delivery date 18-05-2026 was cancelled.

Athens, 22/04/2026
SIDC Intraday Auction: IDA Cancellation

Due to technical reasons or market issues, the auction IDA3 
with delivery date 22-04-2026 was cancelled.

Athens, 21/04/2026
SIDC Intraday Auction: IDA Cancellation

Due to technical reasons or market issues, the auction IDA2 
with delivery date 22-04-2026 was cancelled.

Showing 1 to 4 of 63 entries.

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Historical Figures, can be found here.

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Natural Gas Trading Platform

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Natural Gas Trading Platform Messages

Call Auction on 21.05.2026 , 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]: 21.05.2026
Product Code: GRGD260521
Balancing Gas Quantity: 2.600.000 kWh
Side: Sell
Auction Date and Time: 21.05.2026 , 20:00 EET

The Order Book will remain open for thirty (30) minutes.

Call Auction on 07.05.2026 , 24:00 EET

HEnEx would like to inform Market Participants about the Auction of Natural Gas Trading Platform with the following details:

Delivery Date [Gas Day]: 07.05.2026
Product Code: GRGD260507
Balancing Gas Quantity: 4.000.000 kWh
Side: Buy
Auction Date and Time: 07.05.2026 , 24:00 EET

The Order Book will remain open for thirty (30) minutes.

Showing 1 to 2 of 811 entries.

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News - Announcements

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 € 11,954,306.18 for the calculation period June 2026.

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 € 2,298,255.18 for the calculation period June 2026.

Clearing Fund amount for Balancing Market

EnExClear, as the Clearing Fund Administrator, in accordance with Part 8, Section 2.27, of Clearing Rulebook for Balancing Market Positions, announces that the Balancing Market Clearing Fund is set at € 23,835,017.67 for the calculation period April - June 2026.

Showing 1 to 3 of 335 entries.

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Exams/Seminars

SDAC Decoupling training session with Market Participants 03/11/2021 – Common invitation

This training session is organized to give all parties involved the opportunity to validate that they are properly prepared to handle such a day-ahead market decoupling incident in real operations and real-life conditions. HEnEx encourages all its active market participants to join the training session, planned for 3 November 2021. More information will follow in due time.

The SDAC press release is available 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 23rd June 2021. The registration form can be found here.

SDAC webinar on the implementation of the DE-AT-PL-4M MC (Interim Coupling) Project - 21st April

Detailed information can be found here.

Showing 55 to 57 of 69 entries.