Fortum’s annual outage 2016 at Loviisa nuclear power plant completed

Both units at Fortum’s Loviisa nuclear power plant are back in production after

their annual maintenance outages. The annual outage of Unit 1 lasted nearly 38

days, until 14 September 2016, and the maintenance outage of Unit 2 lasted

approximately 20 days, until 7 October and was completed 3 days ahead of

schedule. The duration of the annual outage of Unit 1 was prolonged by about 5

days due to repair of the refuelling machine.



This year Unit 1 underwent the extensive inspection outage performed every 4

years and Unit 2 the short annual outage. In conjunction with the annual

outages, about one quarter of the fuel in both units was replaced.



In addition to the normal scheduled maintenance and fuel reloading, the

turbine's high-pressure housings were renewed, main transformers and generator

breakers replaced as well as work related to the steam generators at both units

performed. At Unit 1, also two reheaters were replaced. At Unit 2, a major

overhaul of stator and replacement of generator rotor was carried out.



“During this years’ outage, the first stage of automation modernisation

project, launched in 2014, was carried out. The project implements key safety

system improvements at Loviisa power plant. In the modernisation project, old

analogue automation technology will be replaced by digital automation system

technology. The work will be carried out in phases during the annual outages so

that it doesn’t disrupt the normal operations of the plant. The safety-related

system of both plants will be renewed during 2016-2018. The automation upgrade

of the Loviisa power plant will ensure safe and economical operation of the

plant to the end of its existing operating licenses,” says Anssi Laakso,

Manager, Plant Lifetime Management and Maintenance unit.



Good results have been achieved in the long-term development efforts to lower

the radiation levels at the plant during the annual outage. Thanks to the

continuous development work, the collective radiation doses for personnel

during annual outage at Unit 1 were the lowest in the plant’s history and among

the lowest for Unit 2 compared to similar types of outages.



“Several challenging projects were implemented at both plants and the

implementation process required careful planning. Overall, the work went

smoothly, and no major incidents endangering personnel or plant safety

occurred,” Laakso continues.



A total of some 950 external employees participated in the Loviisa power

plant’s annual outage that started in August and in ongoing modernisation

projects. About 80 per cent of the workers were Finnish subcontractors. There

are approximately 500 Fortum employees and some 100 permanent contractors

working at the Loviisa power plant year round.





Fortum Corporation

Group Communications



More information:

Anssi Laakso, Manager, Plant lifetime management and Maintenance unit, tel.

+358 10 455 4063



Loviisa power plant

In 2015, the load factor at Fortum’s fully-owned Loviisa nuclear power plant

was 92.9%. On an international scale, the load factor was among the best in the

world for pressurised water reactor power plants. The plant produced a total of

8.47 terawatt hours, which is approximately 13% of Finland’s total electricity

production. The Loviisa power plant employs approximately 500 Fortum employees

and 100 permanent contractors. In 2015, Fortum invested EUR 80 million into the

Loviisa nuclear power plant.



Fortum

Fortum’s vision is to be the forerunner in clean energy. We provide our

customers with electricity, heat and cooling as well as other energy solutions

that improve present and future life. Already 64% of our electricity generation

is CO2 free. Our main markets are the Nordic and the Baltic countries, Russia,

Poland and India. In 2015, we employed some 8,000 energy sector professionals,

and our sales were EUR 3.5 billion. Fortum’s share is listed on Nasdaq

Helsinki. www.fortum.com