The Dukovany Nuclear Power Plant is a nuclear power plant (NPP) near Dukovany, a village in the Czech Republic.

It was the first NPP in what is now the Czech Republic (the Bohunice Nuclear Power Plant in what is now Slovakia was constructed in 1958) and is situated 30 km from the city of Třebíč, near Dalešice Dam, where the NPP sources its water supply. In 1970 Czechoslovakia and the Soviet Union ratified a contract for construction of two NPPs. Actual construction work began four years later. From 1985 to 1987, four power units with pressurized water reactors were commissioned. All four are still in operation.

In 1994, a tourist centre was opened at the site.

Dukovany Nuclear Power Plant is owned and operated by CEZ Group. CEZ recently tendered for new reactor construction, including an option for building a fifth reactor block at Dukovany. The winner of the tender will be declared in 2011.

Technical data

The Dukovany Nuclear Power Plant has four reactors. As of May 2009 CEZ reported turbine generator output (gross capacity) as listed below. Net capacity is a baseline estimate only.

Unit	Type	Net capacity	Gross capacity	Initial criticality	Grid date
1	VVER 440/V213	>427 MWe	464 MWe	Feb 1985	Aug 1985
2	VVER 440/V213	>427 MWe	466 MWe	Jan 1986	Sep 1986
3	VVER 440/V213	>427 MWe	502 MWe	Oct 1986	May 1987
4	VVER 440/V213	>427 MWe	465 MWe	Jun 1987	Dec 1987

In 2005, Unit 3 was upgraded to 456 MWe gross capacity, and the same upgrade was made to Unit 1 and Unit 4 in 2007. Unit 3 was further upgraded in 2009 to 500MWe. In total an extra 240 MWe of capacity has been or will be added before 2013 in a comprehensive program of improvements including steam plant replacement, addition of instrumentation and fuel changes.

Cooling Towers

Dukovany Nuclear Power Station has 8 cooling towers, each 125 metres tall.

Meteorological Tower

West of the facility at 49°5'42.89"N, 16°8'5.44"E, there is a 136 metre tall guyed tower for monitoring air radioactivity.

Power distribution

The powerlines leaving Dukovany Nuclear Power Station are mainly installed on delta type pylons. They run to Slavetice substation situated at 49°6'15" N and 16°7'10" E. At this substation the powerline to Dürnrohr in Austria starts.

Plant owner CEZ plans to install a district heating circuit to supply heat to homes and businesses in Brno. A pipeline over 40 kilometres in length could be installed after regional officials have considered CEZ's environmental impact statement for the project, submitted in July 2010.

Dukovany Nuclear Power Plant
Country	Czech Republic
Construction began	1974
Construction cost	Kčs 25 billion
Operator(s)	CEZ Group
Reactor information
Reactors operational	1 x 464 MW 1 x 466 MW 1 x 502 MW 1 x 465 MW
Reactor type(s)	VVER 440
Power generation information
Annual generation	13,396 GW·h
Net generation	279,193 GW·h

Temelín Nuclear Power Plant (Jaderná elektrárna Temelín, abbreviation JETE) is located near Temelín, a small village in the Czech Republic. Temelín NPP is owned by ČEZ Group, which employs 1000 workers at this site. The adjacent castle Vysoký Hrádek serves as an information centre.

Technical data

Station	Reactor type	Net capacity	Gross capacity	Initial criticality	Grid date	Exp. shutdown
Temelín 1	VVER 1000/320	963 MWe	1013 MWe	Dec 2000	Jun 2002	2042
Temelín 2	VVER 1000/320	963 MWe	1013 MWe	Dec 2002	Apr 2003	2043

The plant has four cooling towers. Each tower has a height of 150 metres (490 ft), a diameter of 130 metres (430 ft), and an external wall surface area of 44,000 square metres (470,000 sq ft).

The reactor vessel contains 163 fuel assemblies; a single assembly has 313 fuel rods. There are 61 control rods.

New reactors in Temelin Nuclear Power Plant

Plans to build all four original reactors were reopened in 2005. In 2007 planning was suspended because a new government agreed not to promote nuclear energy; a Green Party was a member of the coalition government. However, in July 2008 ČEZ requested the Ministry of the Environment conduct an environmental impact assessment for two additional reactors. In 2009 regional approval was granted for the new build. ČEZ plans to begin construction in 2013, with completion of the first block in 2020. In August 2009, ČEZ sought bids for two pressurized water reactors (PWRs). As of 2010 the companies bidding for the project are Areva, Westinghouse Electric Company, and a consortium of Skoda JS, Atomstroyexport and Gidropress. The winner of the tender will be made public in 2011. Shortly after Fukushima I nuclear accidents, Prime Minister Petr Nečas announced that the construction of new reactors will continue according to the original plans.

Temelín Nuclear Power Station
Country	Czech Republic
Status	Operational
Construction began	1981
Commission date	June 10, 2002
Construction cost	98.6 billion CZK
Operator(s)	ČEZ, a. s.
Constructor(s)	Westinghouse, Skoda JS
Reactor information
Reactors operational	2 x 963 MW
Reactor type(s)	VVER 1000/320 PWRs
Power generation information
Annual generation	11,377 GW·h
Net generation	51,518 GW·h