Market model
The Austrian gas market
Since 1 January 2013, the Austrian gas market has been divided into three market areas: East, Tyrol and Vorarlberg. All three market areas have distribution pipeline systems. Only the market area East also includes transmission pipelines. AGGM acts as market area manager for the market area East and as distribution area manager for the market areas East, Tyrol and Vorarlberg.
As market and distribution area manager, AGGM coordinates network control, prepares calculation schemes to determine and designate capacities at entry and exit points and coordinates the expansion and maintenance of long-distance and distribution pipelines.
In the course of gas market liberalisation, the balance group model was introduced in Austria. A balancing group is a virtual grouping of network users within which a balance is struck between supply and demand (balancing). Balance group members are e.g. gas traders, holders of transport rights (capacity holders), gas suppliers and end customers. Suppliers are companies that supply end customers with gas. All end customers are members of a balancing group either directly or indirectly (via their supplier).
Market areas & market participants
Entry-Exit-System
In the Austrian market areas, an entry-exit system is operated for the entry and exit of gas. Gas traders or suppliers can book and trade capacities at entry and exit points independently of each other.
Capacities entitle the entry and exit of gas into and out of a market area. In the Market Area East, capacities additionally enable transport to or from a virtual trading point (VTP) within the market area. The virtual trading point is not assigned to a physical entry or exit point and enables market participants to trade natural gas even without booking capacity. The delivery at entry points and the withdrawal at exit points can be carried out independently of each other.
In the distribution area, AGGM books and manages the entry and exit capacities between the transmission and distribution networks. This ensures an uninterrupted transition there for the suppliers and their customers. AGGM enables the marketing of entry and exit capacities at the cross-border interconnection points in the distribution network. AGGM also controls the gas flow and is responsible for maintaining pressure in the distribution area.
BGR-transport applications
Balancing group representatives (BGR) transmit - depending on the portfolio - the following transport notifications to system operators:
- Nominations in the transmission system (entry/exit) to transmission system operators
- Storage or production nominations to storage or production respectively
- Trading nominations or exchange orders at the virtual trading point (VTP) to VTP operators or gas exchanges
- Nominations at cross-border interconnection points to market and distribution area managers (MADAM) in the distribution area ("small cross-border traffic")
- Wholesale schedules to MADAM (hourly individual schedule per LPM customer greater than 50,000 kWh/h for network control purposes and per LPM customer greater than 25,000 kWh/h, if opted into hourly allocation)
- No schedule registration for end consumers and feeders of renewable gases (with the exception of wholesale schedules).
Balancing
All gas transports through the Austrian market areas are coordinated by AGGM. In addition to the controlled use of the network buffer, the network stability is also actively kept in balance by physical calls for balancing energy.
AGGM procures balancing energy from the European Energy Exchange and from the Merit Order List (MOL) of the balancing authorities. The balancing energy ensures the ongoing balancing of the netted difference between all inputs and outputs (incl. the actual gas consumption quantities). This maintains network stability and security of supply in the Austrian market areas. If these balancing measures are not sufficient to keep the network stable, AGGM can also cut exit nominations if necessary.
The allocation of individual imbalances per balancing group and their commercial settlement is carried out subsequently by the balancing agency within the framework of clearing.
Transparency
The AGGM platform is the transparency portal for a wide range of gas industry data and information.
Important data on the market area status are published in the public data monitor on the AGGM platform:
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Market area balance (over- / under-delivery of the market area).
- Balancing energy quantities
- End-customer consumption
- Network buffer utilisation
- Storage level
Balancing group representatives can view individual information on the balancing group status in the login area of the AGGM platform:
- Allocated nominations
- Allocations for standard load profile (SLP) and load profile meter (LPZ) of metered end customers
- Feed-in quantities of renewable gas generation plants
- Balance group or allocation status
The data quality increases as a function of time:
- Preliminary (intraday)
- Updated (on the following day)
- Relevant for settlement (1st clearing)
- Relevant for settlement (2nd clearing)