* Project seen taking 15 years to complete
* Seeking option on new builds elsewhere in Europe
(Repeats to additional subscribers)
(Adds details throughout, background, recasts, byline)
By Michael Kahn and Jason Hovet
PRAGUE, Aug 3 (Reuters) - CEZ <
> launched a tender on Monday for the construction of two nuclear reactor units at its Temelin power plant as part of the Czech power company's plan to boost its nuclear power plant capacity.The public tender also includes an option for CEZ to order up to 3 more nuclear power units in other parts of Europe, a move highlighting the company's push to produce lower-emission electricity by using less higher-polluting coal.
"Completion of Temelin NPP will contribute to future reduction in dependence on energy import from abroad and it will help to maintain energy security of the state and to fulfil obligations and goals concerning climate protection," CEZ said in a statement.
Growing concern over emissions of climate warming carbon from coal and gas fired power plants has sparked renewed interest in nuclear power in Europe.
In central, eastern, and southeastern Europe, a number of countries are eyeing plans to build new nuclear power reactors or extend the lives of existing ones to meet growing demand and replace ageing power capacity.
Generating a bigger share of electricity from nuclear power plants -- at the expense of coal and gas -- is also key for utilities because they will have to pay for all their carbon emissions allowances from 2013 in western Europe and 2020 in eastern Europe.
"Completion of the nuclear units in Temelin is the best variant of a new source of electric energy as far as economic, logistic and technical criteria are concerned," CEZ said in a statement.
CEZ said it had asked for an environmental impact assessment for the new units last year. On Monday the company predicted they would be built in about 15 years, following an administrative process lasting about seven to eight years.
CEZ already runs two units at Temelin with combined capacity of 2,000 megawatts, along with four 440-500 megawatt units at the Dukovany nuclear plant in the east of the country.
It produced 26.6 terrawatt hours of nuclear power in 2008, while its coal plants produced 35.9 TWh of its total 64 TWh output that year.
The main Czech political parties have thrown support behind expanding nuclear power as a low-emission alternative, although the inclusion of the Green Party in the government from 2006 to March this year had been a block.
CEZ said the planned output and type of reactors would be determined in the tender, but added that they should be light-water cooled, pressurized water reactors.
Westinghouse Electric, now a subsidiary of Japan's Toshiba Corp <6502.T>, supplied CEZ's last construction work at Temelin at the start of the decade.
Other possible bidders could include Areva SA <CEPFi.PA>, Russia's Atomstroiexport and Siemens <SIEGn.DE>, which are among contractors to supply Bulgaria's construction of its Belene nuclear plant. (Reporting by Jan Lopatka, Jason Hovet, and Michael Kahn)