TVO

From Nuclear Heritage
Revision as of 19:17, 25 September 2012 by Falk (talk | contribs) (updated)
Jump to navigationJump to search

This text is based on corporation information of TVO:

Teollisuuden Voima Oyj (TVO) is a public company established in 1969 producing electricity for its shareholders at cost price. TVO's nuclear power plant produces about one sixth of the electricity used in Finland. Electricity is generated at the two Olkiluoto nuclear power plant units Olkiluoto 1 and Olkiluoto 2 (OL1 and OL2) at Eurajoki and at the Meri-Pori coal-fired power plant in Pori. A new unit, Olkiluoto 3 (OL3), is under construction at Olkiluoto. TVO has filed an application for a decision-in-principle to construct a fourth nuclear power plant unit at Olkiluoto in spring 2008.[1]

The main mission of TVO is to produce electricity for shareholders safely and economically without carbon dioxide emissions. TVO's vision is to be a world-class nuclear power company that is appreciated by Finnish society. Values of the company are responsibility, transparency, pro activity and continuous improvement.[1]

The Olkiluoto nuclear power plant produced ca. 14.5 TWh electricity in 2009. It was about one sixth of all electricity used in Finland.[1]

TVO's generating capacity consists of the Olkiluoto nuclear power plant units Olkiluoto 1 and Olkiluoto 2 with an electrical output of 860 MW each and the 257 MW share in the Meri-Pori coal-fired power plant.[1]

Company shareholders and holdings December 31, 2009[1]
Holding A series B series C series Total
EVP Energia Oy 6.5 6.6 6.5 6.5
Fortum Power and Heat Oy 26.6 25.0 26.6 25.9
Karhu Voima Oyj 0.1 0.1 0.1 0.1
Kemira Oyj 1.9 - 1.9 1.1
Oy Mankala Ab 8.1 8.1 81. 8.1
Pohjolan Voima Oy 56.8 60.2 56.8 58.3

The A series shares entitle the shareholders to the electricity generated by the current plant units, the B series shares to the electricity by the new plant unit OL3, and the C series shares to the electricity generated by the Meri-Pori coal-fired power plant.[1]

Some "important dates":[1]

  • 23.1.1969: Teollisuuden Voima Oy was founded by 16 companies
  • 21.12.1972: The Ministry of Trade and Industry gave principle approval for building a nuclear power plant.
  • 1973: The Parliament approved TVO's proposal of acquisition of an area at Olkiluoto.
  • 31.1.1974: The Ministry of Trade and Industry granted construction license for Olkiluoto 1 (OL1) in accordance with the Atomic Energy Act.
  • 1.2.1974: OL1's foundation stone was laid.
  • 4.8.1975: The Ministry of Trade and Industry granted construction license for Olkiluoto 2 (OL2) in accordance with the Atomic Energy Act.
  • 28.8.1975: Construction of OL2 unit was started.[2]



  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 TVO: Pocket Guide 2010; Eura Print Oy, 2010
  2. This data is in contradiction to the data provided by the International Atomic Energy Agency: according to them, the construction started on 01/11/1975 - http://www.iaea.org/PRIS/CountryStatistics/ReactorDetails.aspx?current=160 as at September 25, 2012