3 Our company

Balancing concerns both very short periods (seconds) and very long ones (hours), and it is performed by using power reserves maintained especially for this purpose. The transmission system operator is required to maintain specific amounts of second, minute and hourly reserves. The first two reserve types are acquired by PSE by entering into relevant contracts with generators for so-called regulation ancillary services – this action is preceded by a tendering procedure. The source of the hourly reserve is the balancing market (commercial bids). Depending on type and location, reserves are activated automatically or remotely, from the central power regulator, based on an order communicated by telephone or in another previously agreed way.

The transmission system operator is required to plan network operation and generation distribution in its nodes so that a criterion distortion does not cause a system failure and constraints in energy supply to consumers. For this purpose, the TSO prepares coordination plans spanning periods of 3 years to one day. They include both maintenance schedules for network elements and repair schedules for generating units. In the planning process, constraints in the operation of generating units are identified for individual network nodes. The operator manages those constraints by using the balancing market mechanism or by entering into relevant agreements with generators.  

The transmission system operator prepares measures to prevent the occurrence of states that pose a risk to the stable operation of the PPS, in particular the propagation of a failure in the transmission system. These are different kinds of automatic protection systems that support quick changes of the network operation configuration and the production level of generating units, plans of consumer outage or reduction of electricity supply and consumption, e.g. based on power rationing levels communicated by radio. In the event of a failure in the transmission system, the transmission system operator has restoration scenarios prepared, which provide, in an extreme case, for the need to restore the entire national system. In order to enable such scenarios to be executed, the system operator enters into contracts with generators capable of starting up without external power supply (ancillary service).

Planning the expansion of the transmission network which takes into account the expected changes in the value and geographical distribution of domestic demand, location of new generating sources and network expansion plans of the operators of neighbouring countries and distribution system operators.

Maintenance of the physical condition of network resources so as to ensure their high availability. 

concerning common rules for the internal market in electricity and repealing Directive 2003/54/EC – sets out the main obligations of the TSO and the rules for the effective unbundling of electricity generation and supply activities from transmission activities, thus the obligations of TSO ownership unbundling.

on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC – establishes a common framework of measures aimed to ensure a 20 percent share of RES in final consumption of energy, including the rules for priority treatment of renewable sources in the network connection process.

concerning measures to safeguard security of electricity supply and infrastructure investment – sets out measures aimed to guarantee the security of electricity supply in order to ensure the correct operation of the internal electricity market.

an international non-profit association representing the Central European energy sector, whose objective is to support the integration of the Central European energy sector within the framework of the EU common energy and security policy in the area.

a creative non-governmental organisation of a scientific and technical nature operating for social and public benefit. It is a voluntary association of electrical engineers of all specialties, whose professional activities are related to broad-based electrical engineering, as well as legal persons with an interest in its activities.

one of 58 national committees operating on behalf of CIGRE, the world's largest international association of experts dealing with the issue of power generation, transmission and distribution. 

a nationwide tourism and sport association based in Konstancin-Jeziorna.