Sept. 5 (Bloomberg) -- Martin Landtman hunches forward in his shirtsleeves as a June storm on Finland's Baltic coast drenches the construction site of the world's most powerful nuclear reactor. As project manager for TVO, the joint venture buying the plant, Landtman has weathered far worse annoyances than rain.
Flawed welds for the reactor's steel liner, unusable water- coolant pipes and suspect concrete in the foundation already have pushed back the delivery date of the Olkiluoto-3 unit by at least two years.
``Substantial delays, I think you can use that word, yes,'' the 54-year-old Landtman says.
Olkiluoto-3, the first nuclear plant ordered in Western Europe since the 1986 Chernobyl disaster, is also more than 25 percent over its 3 billion-euro ($4 billion) budget.
If Finland's experience is any guide, the ``nuclear renaissance'' touted by the global atomic power industry as an economically viable alternative to coal and natural gas may not offer much progress from a generation ago, when schedule and budgetary overruns for new reactors cost investors billions of dollars.
The U.K.'s Sizewell-B plant, which took nearly 15 years from the application to build it to completion, opened in 1995 and cost about 2.5 billion pounds ($5.1 billion), up from a 1987 estimate of 1.7 billion pounds.
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``The nuclear industry has put forward very optimistic construction cost estimates, but there is no experience that comes even close to backing them up,'' says Paul Joskow, director of the Center for Energy and Environmental Policy Research at Massachusetts Institute of Technology in Cambridge.
Some investors already are treading cautiously, even amid rising demand for electricity.
``You have to go in with your eyes wide open,'' says Robin Kendall, director of project finance at Societe Generale in Paris, which is among the banks that lent 1.95 billion euros to TVO for the Finland reactor. It's looking into providing loans for nuclear projects in Europe and Asia.
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