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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

Trading and Clearing IT platforms for Spot Markets

The Hellenic Energy Exchange organizes on Friday 1st of November 09:30 at it's premises a workshop for "Trading and Clearing IT platforms for Spot Markets".

Registration details can be found here.

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.

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:

Introduction

DAM & IDM Membership & Start-Up

DAM & IDM Business Processes

Clearing & Settlement Business Processes

Order types in the new HEnEx DAM & IDM auctions

Spot Trading System Application Programming Interface

Spot Trading & Clearing System

Showing 67 to 69 of 69 entries.