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REPUBLIC OF TUNISIA

The methodology of local industrial involvement as a part of NPP

supply chain strategy

Chokri ZAMMALI, PhD-Engczammali@steg.com.tn

Tunisian Electricity and Gas Company (STEG)Alternative Energies Project

15th INPRO, Vienna, 2-4 July 20181

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General framework

Methodology

Current status

Future work

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OUTLINE

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STEG is in charge of carrying out the feasibility study of the introduction of the first NPP.

Reasons of the feasibility study of NPP introduction: Increasing energy demand (5%/year 1999-2009). Limited national production of fossil fuel. High dependence of electricity production on Natural Gas.

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General framework

Natural Gas

Ref. scenario in 2031 (31Twh)Energy Mix study

Nuclear: One Unit of1000 MW (III/III+) (2023)Other Units (beyond 2030)

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General framework

IAEA Milestone approach : The analysis of local industrial participation

is to be considered.

• Pre-Feasibility Study finalized and Sent To IAEA for Review (2015)• Ongoing Self- assessment (2016--)• INIR Mission (to be planned-2019 )

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Methodology

Proposal of a national strategy in order to:

Assess the optimal rate of local participation in the different phases of NPP cycle (construction, operation and maintenance).

Upgrade the national industry in terms of products and services qualities.

Encourage the employment of local people.

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Methodology cont’d

1. Ordering a survey in order to: Identify companies that are potential candidates

to participate in the first NPP project.

Classify local suppliers with the potential to supply equipments or services.

Categorize current quality norms by engineering activities (civil, mechanical or electrical).

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Methodology cont’d

2. Identify nuclear codes and standards (C&S) : Consider advanced NPP (at least generation III). Consult different references (USA, EUR,…). Distinguish between C&S of conventional and those

of nuclear islands. Categorize QA/norms by engineering activities.

3. Technical comparison between C&S of fossil plants and those of Advanced NPPs:

Consider Combined Cycle Gas Turbine Plants (built recently in Tunisia).

Which enhancements needed to obtain nuclear C&S?

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Methodology cont’d

4. Economic evaluation of the difference between conventional and nuclear norms and quality standards:

Evaluate costs needed for upgrading different activities. Assess possible benefits of each improvement. Identify and classify local companies that are capable to perform

upgrading procedures.

5. Identification of the minimum participation without any modifications of ongoing QA/norms.

Taking account of the previous participation in conventional power plant (400MW CCGT, begin operation in 2011).

Considering equipments and services needed for the erection, operation and maintenance of 1000 MW NPP.

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Methodology cont’d

6. Development of a strategy to improve the level of local participation:

Working out specific tasks to be followed by candidate companies (quality procedure, technical capability and human resources development).

Assessment of upgrading procedures using costs/benefits approach.

Identification of the potential actors that could finance industrial improvements.

Planning a study concerning the possibility of technology transfer (learn about successful experiences of similar countries).

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Methodology cont’d

7. Assessment of the impact of the optimal domestic participation on the national economy:

• Estimation of the number of created jobs• Impact on the GDP growth• Impact on R&D activities

Consider cases of installing one or several units

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Current status1. A survey was performed (by 2 national technical

centers) to identify local companies that are potential candidates to participate in the NPP project :

• Building materials• Mechanical components• Electrical and electronic components• Engineering

2. Creation of a database including useful information about potential candidates (more than 300 companies).

• (turnover, staff number, qualifications, QA/norms, references…)

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Current status cont’d

3. Elaboration of a report assessing the level of industrial involvement including 5 chapters:

• Methodology• Analysis of the structure of local industry• NPP C&S vs. C&S of conventional power plant• Equipment and materials for 1000MW PWR• Assessment of the minimum local industrial involvement

Report reviewed by IAEA experts in March 2014.

Recommendations:- Assessment of the risk of localization- High implication of local government- Modular approaches to develop industrial activities- Well studied technology transfer - Human Resources development

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Equipment and materials (1000MW PWR)

CivilCement 60 000 t

Aggregate 200 000 m3

Concrete 200 000 m3

Formwork 350 000 m3

Reinforcement 20 000 t

High tension steel 500 t

Embedded parts 2 000 t

Decontamination paint 200 000 m2

Mechanical Supports 400 t

Pipes 60 000 m

Welds 50 000 m

Pumps 280

Vessels/tanks 260

Heat exchangers 250

Valves 12650Hand operated 10600 (150 types)

Motor operated 450 (25 types)

Valves for measuring circuits 1600Ref : Developing industrial infrastructures to support a programme of nuclear power, (IAEA1988)

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Equipments and materials (1000MW PWR) cont’d

ElectricalMotors 900

Large Transformers 21

Cables 430 000 m

High voltage 20 000 m

Low voltage 410 000 m

Control and instrumentationVideo display units 8

Recorder 60

Indicators 500

Alarm window 1 000

Cubicles 200

Modules 16 000

Instrumentation cable 1 500 000 m

Ref : Developing industrial infrastructures to support a programme of nuclear power, (IAEA 1988)

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Assessment of local industrial involvement Capital cost structure by activities (typical values)

Ref : Developing industrial infrastructures to support a programme of nuclear power, (IAEA 1988)

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Assessment of local industrialinvolvement cont’d

Participation in a conventional power plant (total cost 400M$)Data of 400MW Combined Cycle Gas Turbine (began operation in 2011)

•Local civil activities: materials, foundations, structures,…(10% of the total construction costs).

•Local electrical and mechanical activities : assembly, tanks, voltage transformers, motors/pumps, cables…

(15% of the total construction costs).

Participation in the construction of the 1st NPP:

10% of total cost (~4000M$)

• 4% Civil

• 6% Electrical and Mechanical

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Potential sectors to be developed

Pumps (280) : Many of them could be used in conventional power plant and in industry.

Valves (12650) : nuclear and non-nuclear class valves

Vessels/Tanks (260) : low pressure.

Heat Exchangers (250) : for nuclear and non-nuclear industries

Pipes (60km): low and medium pressure

Motors (900 :low and medium voltage) : Power from some kW to some MW.

Numbers for 1000MW PWR

Develop a national strategy involving national stakeholders to improve the quality of local products with respect to nuclear standards:

Economic ImpactsConstruction phase (1000MW)

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direct + indirect effectsVariation (%) 2024 2025 2026 2027 2028 2029 Cumulative Variation

GDP 0,07% 0,09% 0,13% 0,08% 0,04% 0,03% 0,43%

YD 0,07% 0,08% 0,12% 0,08% 0,04% 0,02% 0,42%

Production 0,09% 0,12% 0,17% 0,14% 0,07% 0,04% 0,62%

Exports 0,00% 0,00% 0,00% 0,00% 0,00% 0,00% 0,00%

Imports 0,07% 0,09% 0,13% 0,15% 0,08% 0,05% 0,57%

Employment 0,12% 0,15% 0,13% 0,07% 0,04% 0,02% 0,53%

direct + indirect+ induced effectsVariation (%) 2024 2025 2026 2027 2028 2029 Cumulative Variation

GDP 0,10% 0,12% 0,18% 0,12% 0,06% 0,04% 0,61%YD 0,09% 0,12% 0,17% 0,12% 0,06% 0,03% 0,59%

Production 0,12% 0,15% 0,22% 0,17% 0,09% 0,05% 0,80%Exports 0,00% 0,00% 0,00% 0,00% 0,00% 0,00% 0,00%Imports 0,10% 0,13% 0,18% 0,19% 0,10% 0,06% 0,75%

Employment 0,14% 0,18% 0,26% 0,10% 0,05% 0,03% 0,77%

IAEA CRP (I12005): Assessing the national and regional economic and social effects of nuclear programmes (2017)

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Future work Work with the ministry of industry in order to

develop a national strategy involving national stakeholders (union of industrial companies, institute of standardization, banks..)

Contact potential constructors to identify possible technology transfer.

Cooperation with IAEA…

CRP I31030 :Assessing Pipe Failure Rates to improve the local industrial involvement in Advanced WCRs (2018-2022).

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THANK YOU FOR YOUR ATTENTION !

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REPUBLIC OF TUNISIA

The methodology of local industrial involvement as a part of NPP

supply chain strategy

Chokri ZAMMALI, PhD-Engczammali@steg.com.tn

Tunisian Electricity and Gas Company (STEG)Alternative Energies Project

15th INPRO, Vienna, 2-4 July 201821