- balancing time unit
means the time period for which the price for balancing reserves is established;
- bidding zone
means the largest geographical area within which market participants are able to exchange energy without capacity allocation;
- capacity allocation
means the attribution of cross zonal capacity;
- consumption unit
means a resource which receives electrical energy for its own use, excluding TSOs and Distribution Systems Operators (DSOs);
- control area
means a coherent part of the interconnected system, operated by a single system operator and shall include connected physical loads and/or generation units if any;
- coordinated net transmission capacity
means a capacity calculation method based on the principle of assessing and defining ex ante a maximum energy exchange between adjacent bidding zones;
- countertrading
means a cross zonal exchange initiated by system operators between two bidding zones to relieve physical congestion;
- critical network element
means a network element either within a bidding zone or between bidding zones taken into account in the capacity calculation process, limiting the amount of power that can be exchanged;
- cross zonal capacity
means the capability of the interconnected system to accommodate energy transfer between bidding zones;
- cross-control area balancing
means a balancing scheme where a TSO can receive bids for activation coming from other TSOs’ areas.
- cut-off time
means the point in time where TSOs have to confirm all matched nominations to the market.
- data provider
means the entity that is sending the data to the central information transparency platform;
- explicit allocation
means the allocation of cross zonal capacity only, without the energy transfer;
- generation unit
means a single electricity generator belonging to a production unit;
- implicit allocation
means a congestion management method in which energy is obtained at the same time as cross zonal capacity;
- market time unit
means the period for which the market price is established or the shortest possible common time period for the two bidding zones, if their market time units are different;
- offered capacity
means the cross zonal capacity offered by the transmission capacity allocator to the market;
- planned
means an event known ex ante by the primary owner of the data;
- power transfer distribution factor
means a representation of the physical flow on a critical network element induced by the variation of the net position of a bidding zone;
- primary owner of the data
means the entity which creates the data;
- production unit
means a facility for generation of electricity made up of a single generation unit or of an aggregation of generation units;
- profile
means a geographical boundary between one bidding zone and several neighbouring bidding zones;
- redispatching
means a measure activated by one or several system operators by altering the generation and/or load pattern in order to change physical flows in the transmission system and relieve a physical congestion;
- time
means the local time in Brussels.
- transmission capacity allocator
means the entity empowered by TSOs to manage the allocation of cross zonal capacities;
- vertical load
means the total amount of power flowing out of the transmission network to the distribution networks, to directly connected final customers or to the consuming part of generation;
- year-ahead forecast margin
means the difference between the yearly forecast of available generation capacity and the yearly forecast of maximum total load taking into account the forecast of total generation capacity, the forecast of availability of generation and the forecast of reserves contracted for system services;