Slovenské elektrárne, an Enel Group company, is celebra-ting 90 reactor-years of its

nuclear power plants: 30 years of operation of the two reactors at the Bohunice V2 Nuclear Power Plant and 15 years of operation of the two reac-tors at the Mochovce NPP. Th e four units have produced 290 terawatt hours of electricity and prevented 15 mill ion tonnes of emissions from being released into the air per year. In 2013, an integrated assessment by the prestigious Institute of Nuclear Power Operations (INPO, USA) clas-sifi ed the four Slovak units as the best of their type at the global level.

We achieved this success thanks to our long-term systematic approach, a  combination of investments in both equipment and people, as well as thanks to our employees’ engage-ment in everyday operations, inclu-ding effective general overhauls, continuous improvement of equip-ment care, and the modernisation of the power plants.The participants at the gala event held on the occasion of the anni-versaries of the EBO V2 and EMO commissioning, which took place at Energoland at Mochovce on 28 November, included SE represen-tatives, the Slovak experts who

had commissioned the four Slovak nuclear units, Director General of the European Atomic Forum FORA-TOM Jean-Pol Poncelet, Chairper-son of the Nuclear Regulatory Autho-rity of the Slovak Republic Marta Žiaková, representatives of Slovak and international nuclear energy institutions, as well as the mayors of the neighbouring municipalities and other partners. “It is the life of one common nuclear family that has developed one step at a time. We can feel pride in the wider community which has enabled us to be celebra-ting here today,” said Nicola Cotug-no, SE Operation and Energy Mana-

gement Director. “Thirty years is a long period, and for sure you have thought about things that happe-ned either in our country or in our personal lives. Th irty years is not only the history of machines, turbines, and reactors; it is mainly the histo-ry of people. People have all owed the machines to operate well .”

A look back into historySlovakia was among the fi rst coun-tries that started using nuclear energy to generate electricity. Th e construction of the fi rst Slovak NPP began in 1958. Today, the country stands among the leaders in the

NINETY REACTOR-YEARS OF SLOVENSKÉ ELEKTRÁRNE’S

NUCLEAR UNITS

Steam generator delivery to the Bohunice V2 nuclear power plant building site (1979).

MONTHLY NEWS FROM

MOCHOVCE AND BOHUNICE

POWER PLANTS

december 2014

foratom:Ukrainian crisiswill affect us

03

mo34:Progress of works

04

mo34 construction three times safer than the Slovak average

05

2

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Th e celebration of 90 reactor-years was an opportunity to think back on the experiences from the construction and operation of the NPP.

percentage of nuclear energy to the total production of energy, as well as the achievement of performan-ce parameters in our nuclear units.

Th e Bohunice V2 Nuclear Power Plant produces electric energy in two units with VVER 440/V-213-ty-pe pressurised water reactors that were connected to the power grid in 1984 and 1985. Aft er the completion in 1987 of the town of Trnava’s central heat supply system, supplied by the Bohunice NPP, the V2 Power Plant switched over to combined electri-city and heat production, and now it supplies both Leopoldov and Hlohovec with heat. Starting in 2002, a V2-unit modernisation program-me costing EUR 500 mill ion began to be implemented, being comple-ted in 2010 with a power uprating to 505 MW/unit.

The Mochovce units, as well as the units at Bohunice, are among the newest VVER 440/V-213 nucle-ar units, and take advantage of all the improvements executed in the power plant. Each EMO unit produ-

ces over 3,000 GWh of electricity per year, which covers about 11 per cent of Slovakia’s consumption. Th e fi rst unit has supplied electric energy to the grid since the summer of 1998, and the second unit since the end of 1999. In 2008, the gross power of each was uprated from 440 to 470 MW. Th ese power plants, with a planned service-life of 60 years, have produ-ced 290 TWh so far, which is equi-valent to the electricity volume that would be consumed by Slovakia in one decade.

Excell ent operating resultsSE’s nuclear power plants, covering over 50 per cent of the energy consu-med in Slovakia, achieve excell ent operating results and have become number one in the world in their class in terms of safety and operating reliability. Th e integrated assessment of performance indicators in the area of operation, safety and reliability of 52 VVER 440 and 1,000 INPO reac-tors, which evaluates the period of the last three years, ranked the Slovak nuclear units among the top fi ve reactors in the world. Another

fi rst place belongs to the Bohunice NPP, which is the fi rst power plant equipped with the newest systems for severe accident management.Th e top performance of the Slovak nuclear power plants was also confi r-med by the magazine Nuclear Engine-ering International. In its assessment, published in November 2014, of the 12-month performance at internatio-nal nuclear power plants, it designa-ted the pressurised water reactors operated by SE as the best in their class according to the stress factor, achieving a value of 90.7 per cent in June 2014.“Mochovce is the fi rst eastern-type nuclear power plant to reach western safety standards,” said EMO Director Jordan Mandalov. Last year, the two units produced 7,640 GWh of electri-city. Th e benchmark eight-thousand GWh was achieved by by Bohunice last year; the power plant supplied 8,079 GWh, informed V2 Power Plant Director Milan Molnár.

Greenhouse-gas-free operationThe numerous benefits stemming from the operation of the two SE nuclear power plants, in addition to numerous job opportunities and the development of the regio-nal infrastructure around the four Slovak units, include the carbon-free production of electricity, preventing additional emissions of 15 mill ion tonnes of CO2 annually. To elimi-nate the CO2 that has been saved by the operation of the units since being put into operation, 270 mill ion trees would have to absorb carbon dioxide by photosynthesis for forty years. Th us, the nuclear power plants contribute significantly to Slova-kia’s commitment to reduce harm-ful greenhouse gas emissions into the atmosphere. Aft er the comple-tion of Mochovce NPP Units 3 and 4, more than 93 per cent of total elec-tricity production will be carbon-free. In 2013, the net production of Slovenské elektrárne’s nuclear power plants (aft er the deduction of in-plant consumption) amounted to 14,624 GWh. (e + r)

“Th e units are operated safely and reliably. Safe operation also brings about confi dence in you from your neighbours. I believe that the results you have achieved will continue

into the future.”Marta Žiaková, Chairperson of the Nuclear Regulatory Authority of the Slovak Republic

Neither Slovakia nor the Czech Republic are going to abandon nuclear energy.

According to Minister of Economy Pavol Pavlis, the basis of the electric

energy industry of the Slovak Republic is and in the long term will continue

to be represented by the nuclear component. “In the current geopolitical

situation, we consider it a stable energy commodity. Th erefore, we will support such developments in the EU that respect sovereignty in defi ning

national energy mixes,” he said at the 8th Central European Energy Conference

in Bratislava.

3

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FORATOM:

THE CRISIS IN UKRAINE WILL AFFECT US

Europe is similar to an aris-tocratic family, with centu-ries of shared history, but

when it comes to the nuclear issue, we are divided: 14 members are for nuclear energy, 14 are against, and the European Commission is somewhere in-between.” So said Jean-Pol Poncelet, Director General of Foratom, during his visit to the Mochovce NPP at the celebration of 90 reactor-years.Currently 131 reactors are in opera-tion on the European continent; they produce 27 per cent of the electricity in the European Union, and create 53 per cent of its carbon-free energy. Poncelet identified four positives for nuclear energy in the closing year: the EC’s deci-sion to green light the construction of Hinkley Point in Great Britain; the adoption of a new energy poli-

cy and general targets for 2020, for example a 40-per-cent reduction in carbon emissions; the estab-lishment of an energy union led by Chairman Maroš Šefčovič, and the World Energy Outlook’s assumption that nuclear energy will grow by 60 per cent in Asia and the Far East.Th e representative of the Europe-an Atomic Forum did not hide his delight that Slovak Maroš Šefčovič had become the Vice-Chairman of the EC for the Energy Union. “It is another reason to be proud of Slova-kia, because I am responsible for nuclear industry at the European level, and in the European Commis-sion we are defi ning a new policy to guide us for the next fi ve years - the Energy Union. Th e objective is to unite the representatives of all countries, and the person respon-sible as the EC Vice-Chairman is

a Slovak. It is another reason to be proud of Slovakia.”Th e Head of Foratom expects the Ukrainian crisis to aff ect us next year, and there will also be questions regarding the aforementioned Ener-gy Union – what it means and what position nuclear energy will have in it. Poncelet considers the climate conference in Paris one of the most important events of 2015.He concluded: “Over the few next years, our nuclear family will welco-me Units 3 and 4 at Mochovce.” Matúš Demko

WHEN OUR FRIENDS

CAME TO VISIT

The meeting held with our former colleagues on the occasion of the 30th anni-

versary of V2 Unit 3’s commissi-oning looked as if we had invi-ted old friends back to visit us. It took place on the morning of 28 November, within the framework of the celebration of Bohunice and Mochovce Nuclear Power Plants’ 90 reactor-years at the Bohunice NPP. We welcomed our former directors Viliam Ziman, Juraj Kmošena, Adolf Kršteník, and Róbert Guniš, as well as shift engineers Ľudovít Pereszlényi and Ladislav Kalinčík. Jozef Kehér, the father of Slovak nuclear energy, and other guests also att ended. It was interesting for them to return to the

workplace aft er so many years. EBO Director M. Molnár spoke about life today at the power plant. Aft erwards, guests were interested in many thin-gs - fuel, personnel, safety measures, the power uprate... Th ey recoll ected and compared what had changed at EBO over the last 30 years of opera-tion.It was with interest and surprise that they visited a new emergency control centre on the power plant’s premises, and they were fascinated by the functioning of the emergency response system and the emergency commission. Milan Kačmar, one of the “younger” retirees, who had been a member of the emergency commission until the

beginning of this year, asked most of the questions in the emergency control centre. He was particular-ly interested about severe accident solutions. Bohunice’s guests then continued the celebrations of 90 reactor-years at Mochovce’s Ener-goland. Anna Vrúbelová

“In Europe today, the nuclear energy we use provides 27 per cent of all electricity. Th e elec-tricity is cheap, competitive, available 365 days a year, and does not even produce any carbon. Th us, it is also good in terms of climate change.

Th ese are the most important reasons for the continued use of nuclear energy.”Jean-Pol Poncelet, Director General, FORATOM

• “Considering the global energy trends to 2040, the

World Energy Outlook 2014 is a strong reminder that if we want to improve energy trends, continuous political eff orts are necessary,” said the Vice-Chairman of the

European Union responsible for the Energy Union, Maroš Šefčovič, in response to the

publication of this issue.

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MEETING OF THE NUCLEAR SAFETY

ADVISORY COMMITTEE

A regular meeting of Slovenské elek-trárne’s Nuclear Safety Advisory Committ ee (NSAC) took place on

5 – 7 November. Its members are foreign experts with long-term experience in nuclear energy (John Moares, Great Brita-in; Peter Gango, Finland; Ignacio Lequeri-ca, Spain and Gabor Vamos, Hungary). Th e task of the NSAC is to objectively look at the operation of our nuclear power plants, and advise on how to further increase safe-ty and reliability.At the meeting, the committ ee members conducted targeted interviews with NPP directors and managers of central units at

SE headquarters. Th e interviews were part of our preparations for a corporate review by the World Association of Nuclear Opera-tors (WANO) in September 2015, which will focus on the headquarters and central (corporate) functions of SE. Recommenda-tions from the NSAC meeting concerned the further procedure for the self-asses-sment of central functions, and the prepa-ration of documents for the corporate peer review by WANO.Within the regular rotation of NSAC members, Chairman John Moares ended his activity on the committ ee. While saying farewell to the managers of SE headquar-

ters, he praised the results of Slovenské elektrárne, the high level of professiona-lism, and the on-going endeavour towards improvement which he had seen during his years on the committ ee.

The gift of a shepherd’s axe (“valaška”), which the Nuclear Power Plant Operation Director presented to him, will also act as a reminder of his cooperation with SE.Th e next regular meeting of the NSAC, with its new members, will take place in April 2015. Ľubomír Krenický

15 years since Mochovce NPP Unit 2 commissioning22 December 1999, evening: Connection of the second turbine generator. Six nuclear units with a combined

maximum install ed capacity of 2,640 MW were connected to the grid in Slovakia.29 – 30 December 1999: Power up to 35 per cent reached.

Safety Highlights• Total worked hours: 35 794 244• Site work accidents: • Frequency index = 0.64 (Enel I&R ref. in

2013: 0.90)• Severity index = 0.0187 (Enel I&R ref. in

2013: 0.021)F.I. = (n. of accidents with sick leave X 1.000.000) / total worked hoursS.I. = (n. of days lost x 1.000) / total worked hours

NUCLEAR ISLANDUnit 3 & Common Completed activities:

• 345 Rooms in the Reactor Building partiall y ready for technological erection start

• Completed activities of painting remedials• Completed install ation of Hermetic Cables

Penetrations (HCP)• Completed cable ways install ation in

various reactor building rooms

Boron concentrate tank compartment• HVAC system install ation in Rooms 0024/1

and 0025/1Corridor, Hall way, Stairs, Shaft

• Decontamination system install ation in Rooms A519/1 – A015/1

• Refuell ing system component and structures in Room A406

Chamber of station nr 4 valves• Decontamination system install ation in

Room A113

HVAC System engine rooms• HVAC system install ation in Room

A0032/1

ECCS compartment• Decontamination system install ation• ECCS piping install ation in Room A002/1

ECCS fi tt ing penetration area• Impulse lines in Room A202/1

Pressure accumulator compartment• Decontamination system install ation in

Room A525/1• Carbon steel liner in Rooms A525/1 and

A526/1Radiation monitoring blower room

• HVAC system install ation

Electric switchboard room• HVAC system install ation in Room A317/1

and 416/1

Pipe bridge• Radioactive waste treatment piping

install ation

No Started activities during the monthUnit 4

Completed activities:Corridor, Hall way, Stairs, Shaft

• Fireproofi ng install ation in Room A403/2• Screeding works in Room A604 and A018/1

Secondary hydrogen combustion room• Concreting works

Started activities: Corridor, Hall way, Stairs, Shaft

• Main beams dismantling for plates install ation

CONVENTIONAL ISLAND Unit 3 & Common Completed activities:

• Steel structures erection for 6kV bus duct• Erection 6kV bus duct 3BBT01 and 3BBT02• Started activities:• Cross side Electrical Building gas tight

treatment• Mechanical Systems painting• Individual tests on 6kV panels 3BBA• Raw Water System commissioning

Unit 4 Completed activities:

• Lengthwise Electrical Building: completed epoxy resin coating at level +14.70

No Started activities during the month

PROGRESS OF WORKS AS OF NOVEMBER 30, 2014

5

E — december 2014

The fi rst week of December at MO34 was devoted to occupational heal-th and safety. Over the course of the

working days, employees and suppliers had various activities focused on OHS: they started the day with fruit, IRS and ProCa-re measured their vital functions and performed blood tests, they learnt of the consequences of risky behaviour, and how to cope with stress. Nutrition expert Igor Bukovský presented a talk on how to lead a healthy lifestyle. And they participated in practical demonstrations of fi remen’s work.During the Day of Health and Safety, which took place in the new Mochovce Informa-tion and Training Centre on 4 December, MO34 Project Director Giancarlo Aquilan-ti evaluated the main activities in the safety area for 2014. Th ese consisted in particular of motivating workers and rewarding good behaviour, communication campaigns, as well as knowing and comparing best prac-tices in other European countries. During the year, practical trainings with up-to-da-te topics took place (hand-over and take-over of scaff olding, managerial duties, inju-ry prevention, etc.) in which 254 workers participated, and stress-handling trainin-gs with 90 participants. And what about next year? In 2015, stricter inspections are under preparation within the scope of the safety improvement action plan focused on new companies and new workers on-site, and the prevention of repetitive actions –as repetition itself is among the causes of risky behaviour. In the last fi ve years, no serious or fatal injuries have occurred in the MO34 project. However, there is still much work ahead, so we must be very careful.Th is year, the largest number of unsche-duled events were recorded and investiga-ted, which fortunately did not end in inju-ry although they could have. Th ere were 11 such events last year, and 36 this year – thanks to the active approach of the Safe-ty and Environment Unit. “Th e analysis of such events is an excell ent prevention tool,” said Marek Rolinec, Safety and Environ-ment Manager.Mochovce also cooperates with the Labour

MOCHOVCE UNITS 3 AND 4 CONSTRUCTION PROJECT THREE

TIMES SAFER THAN THE SLOVAK AVERAGE

Inspectorate on a weekly basis. “Th e Labour Inspectorate Nitra is exceptional because it carries out supervision of nuclear facili-ties across Slovakia. Th e MO34 construc-tion is an exemplary workplace. Mr. Aqui-lanti all ows for several advanced activities. Th anks to this added value, your workplace is an example for all of the Slovak Republic,” said Róbert Bull a, Chief Labour Inspector. According to him, the labour inspection found 381 defects at nuclear facilities, whil-st the team of Marek Rolinec found 4,000. Th is is evidence that the safety specialists apply the strictest criteria set by law. “Th e building industry is considered the riskiest. You ensure zero accidents at MO34 in the long term. I believe that together we reduce the risk of the occurrence of serious viola-tions,” added Bull a. Th e MO34 project has achieved three times bett er safety results than the Slovak average. Last year, the inju-ry rate index in Slovakia was 1.9, while the construction of Units 3 and 4 achieved 0.6. Th e injury rate index means the number of injuries per one mill ion man-hours, which corresponds to the work of 500 workers over one year.During the health and safety week, Project Director Aquilanti awarded the best

suppliers. Škoda JS was awarded for the nuclear island, Chemcomex Prague won for the conventional island. Within the One Safety project, bronze stars for the succes-sful fulfi lment of the observer task were awarded to Monika Gduľová, Ladislav Borkovič, Miroslav Mikula, Petar Spiri-donov, Nina Govedarska, and Eduard Gregor.At the end of the health and safety week, the Safety Coordinators in cooperation with all the suppliers’ safety technicians evaluated 2014 and agreed tasks for 2015. Th ey will stress the improvement of communication between suppliers at work in shared work-places. Matúš Demko

Th e “best suppliers” with MO34 Project Director, Safety Manager at the rear

Fire-extinguishing demonstration