The "Union for the Co-ordination of Transmission of Electricity"
(UCTE) is the association of transmission system operators in continental
Europe, providing a reliable market base by efficient and secure electric
50 years of joint activities laid the basis for a leading position
in the world which the UCTE holds in terms of the quality of synchronous
operation of interconnected power systems.
Through the networks of the UCTE, about 450 million people are supplied
with electric energy – annual electricity consumption totals approximately
2300 TWh in this region.
UCTE has become the symbol of an efficient and secure operation of
the interconnected electrical “power highways” and signals
other markets when their system adequacy declines.
For more than 50 years, UCTE has been issuing all technical standards
indispensable for a co-ordination of the international operation of
high voltage grids, all working at one “heart beat” –
the 50 Hz UCTE frequency related to the nominal balance between offer
The UCTE network provides a safe electricity supply for some 430 million
people in one of the biggest electrical synchronous interconnections
on the planet.
UCTE also monitors and supervises development of the UCTE synchronous
area. The resynchronization process of the two UCTE zones split in 1991
due to the war events in former Yugoslavia was successfully achieved
on 10 October 2004.
Currently, UCTE is investigating the following requests for enlargement
of the UCTE network:
• The interconnection of Turkey
• The interconnection of Tunisia/Libya that would bring the
UCTE frequency up to Syria and Lebanon
• The assessment via a major feasibility study on the interconnection
of the two largest systems (UCTE and IPS/UPS) – that would result
in one electricity system spreading from Lisbon to Vladivostok.
Following the liberalization of the European electricity market (that
resulted in an steep increase of cross-border flows), and the un-bundling
of electricity sector (separating vertically integrated utilities into
respective generation, transmission companies and distribution companies),
there is a need to make European security and reliability standards
enforceable for all interconnected TSO and, eventually, to all grid