ENTSO-E(European Network of Transmission System Operators for Electricity)

1.Introduction

The European Network of Transmission System Operators for Electricity speaks for all electric TSOs in the EU and others connected to their networks, with one voice for all regions, and for all their technical and market issues.

2.Mission

Being the body of transmission system operators of electricity at European level, ENTSO-E's mission is to promote important aspects of energy policy in the face of significant challenges:

Security - it pursues coordinated, reliable and secure operations of the electricity transmission network.

Adequacy - it promotes the development of the interconnected European grid and investments for a sustainable power system.

Market - it offers a platform for the market by proposing and implementing standardized market integration and transparency frameworks that facilitate competitive and truly integrated continental-scale wholesale and retail markets.

Sustainability - it facilitates secure integration of new generation sources, particularly growing amounts of renewable energy and thus the achievement of the EU's greenhouse gases reduction goals.

3.Tso-Definition

Transmission System Operators (TSOs) are responsible for the bulk transmission of electric power on the main high voltage electric networks.

TSOs provide grid access to the electricity market players (i.e. generating companies, traders, suppliers, distributors and directly connected customers) according to non-discriminatory and transparent rules.

In order to ensure the security of supply, they also guarantee the safe operation and maintenance of the system. In many countries, TSOs are in charge of the development of the grid infrastructure too. TSOs in the European Union internal electricity market are entities operating independently from the other electricity market players.

4.History of ENTSO-E

On 27 June 2008, 36 European electricity transmission system operators (TSO) signed in Prague a declaration of intent to create the ENTSO-E.

The ENTSO-E was established on 19 December 2008 in Brussels by 42 TSOs as a successor of six regional associations of the electricity transmission system operators.

The ENTSO-E became operational on 1 July 2009. The former associations ETSO, ATSOI, UKTSOA, NORDEL, UCTE and BALTSO became a part of the ENTSO-E, while still offering data by their predecessors for public interest.

1.ATSOI - Association of the Transmission System Operators of Ireland

2. BALTSO - Baltic Transmission System Operators

3. ETSO - European Transmission System Operators

4. Nordel - Denmark, Finland, Iceland, Norway and Sweden

5. UCTE - Union for the Coordination of the Transmission of Electricity 6. UKTSOA - UK Transmission System Operators Association

5.Countries of the ENTSO-E member companies

Bosnia(8,501)

Belgium(85,54)

Bulgaria(28,8)

Switzerland(58,77)

Czech Rep.(61,52)

Germany(549,1)

Denmark(34,68)

Estonia(7,18)

Spain(276,1)

Finland(86,9)

France(480)

United Kingdom(348,5)

Croatia(18,61)

Hundary(37,41)

Ireland(25,76)

Iceland(9,31)

Italy(316,3)

Netherlands(122,8)

Norway(128,8

Poland(126,2)

Romania(48,43)

Slovak Rep.(26,0)

Sweden(133,6)

Austria(62,35)

0 100 200 300 400 500 600

Electricity consumption by country in 2008 in TWh

6.Main Tasks

Elaboration and establishment of network codes Ensure coordination of network operation by common network operation tools Develop a ten-year development plan Publish annual work program ,annual report and annual summer and winter generation adequacy

outlooks Security of supply Meeting the needs of the Internal Energy Market and facilitating market integration Promotion of relevant R&D and the public acceptability of transmission infrastructure Consultation with Stakeholders and position towards energy policy issues

7.The Frequency

In conclusion Europe’s electricity consumption is almost 3000 TWh per 1 year!In Europe are near upon 500 milion consumers!The cost of electricity for 1 year is ≥ 240.000.000.000 Euro!

The power supplied through our wall sockets is actually a flow of jittered electrons. These electrons have been provided by the power plants with such a power surge that they vibrate 50 times per second. In the world of electricity, this is what is referred to as 50 Hertz. The entire European power grid, as well as all equipment, devices, machines and systems related thereto are based on this principle.

It is important to maintain this 50 Hertz standard for the entire synchronously operated grid. Within ENTSO-E there are 5 of these synchronous areas. If the frequency differs significantly within one of these areas either upwards or downwards - this will result in power failures and in the end even in blackouts. Frequency can be compared to a steel spring: if you pull at one end of the spring, the spring will extend; and will "dive" below 50 Hertz. However, if one side is pushed in, the spring is compressed and the frequency increases. If we project this image on power supply, we must realize that in the European grid hundreds of producers are "pushing in" at the exact same time, while hundreds of millions of European consumers are "pulling" at the other end at the exact same time. It should continuously be ensured that pulling as well as pushing in is at the same level at all times, for only then the 50 Hertz standard can be maintained. It is the responsibility of the TSOs to monitor the balance between production and consumption, and this includes the balance on international level.

The complication here is that power cannot be stored in large quantities; the quantity which is extracted from the grid should be produced at the same time, meaning it is a delicate balance.

8.Electronic data interchange

An open European electricity market needs a considerable electronic data interchange between all market participants in order to improve the coordination between different inter-country systems.

The aim of the ENTSO-E is to offer all participants the necessary information of the existing EDI standards and their specifications. In association with ebiX and EFET (European Federation of Energy Traders) ENTSO-E maintains a Harmonized role model for the European electricity market

9.System Development

The ENTSO-E will publish a ten-year network development statement, which ought to ensure the reliability and security of energy supply in Europe.

An adequate grid should be available for the functioning of the European electricity market. The committee will introduce technical rules and standards related to the planning of transmission systems and new technical concepts within R&D-activities.

Furthermore it will focus on facilitating the exchange of information about efficient asset management, system technology and critical infrastructure protection among members.

In order to fulfill its duties and tasks , the committee will investigate and develop long-term and medium-term system extension strategies , draw system studies and collect data relevant for system development.

10.Regional Groups

On the establishment of the Association, 5 Regional Groups, based on synchronously interconnected systems, have been set-up under the System Operations Committee.

Having a permanent character, these Regional Groups ensure compatibility between system operation on the one side and market solutions and system development issues on the other.