Energy Business Motion

HUPX IDA Product specification

Planned go-live: Q2 2024 

General information

Product name HUPX Hungarian Power Intraday Auction Market Quarter Hour
Description Short term physical Product of electricity power, delivered at the Hungarian Electricity Transmission System operated by TSO.
Basic quality of the underlying product Electrical power transiting over the Hungarian Transmission System  managed by the Hungarian TSO, which defines the voltage, frequency, cosine φ (displacement factor) and cut-off frequencies, in compliance with the regulations of the Grid Code of the Hungarian Electricity System
Physical Delivery Delivery at any injection or withdrawal point on the Hungarian Transmission System.
Delivery procedure (Nomination) Nomination by the Clearing House (on behalf of HUPX) and by the Balance Group Responsible of the HUPX Member to the TSO on the basis of the regulations of the TSO Commercial Code.
Clearing and Settlement Trade information transmitted by HUPX to the Central Counterparty, ECC AG for Settlement and Delivery of the Contracts
Trading procedure Intraday Auction (3 IDA auctions per delivery day)
Trading days Year-round
Delivery unit 15 minutes
Delivery Period

IDA 1:  D [00:00-24:00]

IDA 2:  D [00:00-24:00]

IDA 3:  D [12:00-24:00]

Lot size (quantity characteristic during Order submission, minimum quantity) 0.1 MW
Minimum and maximum prices -9999 €/MWh / 9999 €/MWh
Tick size (price characteristic during Order submission) Ten euro cent per MWh, 0.1 €/MWh
Results Rounded market clearing price with 2 decimal digits
Gate Opening Time (GOT) 45 days before the Delivery Day
Gate Closure Time (GCT)

IDA 1:  D-1 15:00 (one day before the Delivery Day)

IDA 2:  D-1 22:00 (one day before the Delivery Day)

IDA 3:  D 10:00 (on the Delivery Day)

Publication time of preliminary results GCT + ~17,5 min at the latest
Publication time of final results GCT + ~20 min at the latest
Market coupling SIDC Auction Based
Implicit Cross border allocation Austrian-Hungarian, Slovakian-Hungarian, , Croatian-Hungarian and Slovenian-Hungarian borders
Suspension of IDA (rollback)

Possible in 1 weeks after the go-live of HUPX Intraday Auction Market. In this case HUPX Intraday Continuous Market shall be the only trading platform for Intraday Market Coupling and for the Cross-border allocation

Details of the Suspension of IDA will be communicated in Market Notice(s)
Exceptional procedure In case of impossibility to perform HUPX Intraday Auction Market, the relevant Trading Session shall be cancelled and HUPX Intraday Continuous Market shall be the only trading platform for intraday Market Coupling.
Negative Prices

Negative prices are authorized where specified below (see minimum and maximum prices).

NB: When a contract is traded with a negative price, it is legally regarded as a supply of service (removal service) by the recipient of power to the delivering party and not anymore as a supply of goods by the party delivering the power.
Order types

a) Linear (individual hour) Order;

b) Block Order

Second Auction No
OTC registration No
Trade recall No

Linear Orders

Minimum and Maximum numbers of price/quantity combinations for Single-Contracts orders 2 and 256

Block Orders

Definition Order on one or several combined Contracts with a minimum of one Contract of the same Delivery Day. Expiries depend on each other in their execution.
Specific conditions All-or None
Smart blocks – linked A Linked block group is a set of Block Orders which have together a linked execution constraint.
Loop block - linked

A linked loop block group is a set of 2 classic profile blocks (1 sell and 1 buy block for instance) which have to be either jointly accepted or jointly rejected by the market.

The blocks of the loop family will be executed with the same acceptance ratio.

ETS trading system

ETS Client

The existing ETS Client will enable members to trade and retrieve market results on IDA new auctions.

Format will not change. Configuration names (market area name, auction name) and sample files will be communicated at a later stage.


For IDA API will be available. Webinars will be organised in 2024 to provide members with all required information for the go-live preparation.

Trading limits management

The existing trading limits for ETS will cover new IDA auctions. Members shall make sure that limits are sufficient for expected trading requirements.

Simulation environment and test sessions

Opening of the simulation environment, member test dates are planned for Q2 2024, subject to regulatory approval and successful testing. Further details for registration, connectivity and scenarios will be communicated at a later stage. Please note that there will be both coupled testing as well as testing in local mode so the members can get familiar with these new auctions.

Trading reports

The results of the new auctions will be published in reports currently available from the ETS client and the HUPX SFTP server. Reports for the IDAs will have the similar format as existing DAM reports.

Operational procedures

SIDC project parties will communicate in the coming months on all common operational procedures applying to these new pan-EU IDAs.