Vendor and User Requirements and Responsibilities in Nuclear Cogeneration Projects

By IAEA

Nuclear cogeneration to produce electricity and process heat for nonelectric applications such as desalination, district heating or cooling or hydrogen production can play an important role in reducing dependence on fossil fuels. The implementation of nuclear cogeneration projects is inherently complex and such projects require a clear understanding of actions and responsibilities during the design, operation and management phases. This publication focuses on analysing the requirements and responsibilities of users and vendors and correspondence between them through the life cycle to of a nuclear cogeneration project, highlighting experience and lessons learned from retrofit and new build projects.

• Language: English
• Publisher: International Atomic Energy Agency
• Release date: Aug 7, 2023
• ISBN: 9789201368232

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Vendor and user

requirements and

responsibilities in

nuclear cogeneration

projects

IAEA NUCLEAR ENERGY SERIES No. NR-T-2.17

Vendor and user

requirements and

responsibilities in

nuclear cogeneration

projects

INTERNATIONAL ATOMIC ENERGY AGENCY

VIENNA, 2023

COPYRIGHT NOTICE

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© IAEA, 2023

Printed by the IAEA in Austria

August 2023

STI/PUB/2064

IAEA Library Cataloguing in Publication Data

Names: International Atomic Energy Agency.

Title: Vendor and user requirements and responsibilities in nuclear cogeneration projects / International Atomic Energy Agency.

Description: Vienna : International Atomic Energy Agency, 2023. | Series: IAEA nuclear energy series, ISSN 1995–7807 ; no. NR-T-2.17 | Includes bibliographical references.

Identifiers: IAEAL 23-01604 | ISBN 978–92–0–136923–9 (paperback : alk. paper) | ISBN 978–92–0–136723–5 (pdf) | ISBN 978–92–0–136823–2 (epub)

Subjects: LCSH: Cogeneration of electric power and heat. | Nuclear power plants. | Total energy systems (On-site electric power production). | Nuclear energy.

Classification: UDC 621.039.517 | STI/PUB/2064

FOREWORD

The IAEA’s statutory role is to seek to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world. Among other functions, the IAEA is authorized to foster the exchange of scientific and technical information on peaceful uses of atomic energy. One way this is achieved is through a range of technical publications including the IAEA Nuclear Energy Series.

The IAEA Nuclear Energy Series comprises publications designed to further the use of nuclear technologies in support of sustainable development, to advance nuclear science and technology, catalyse innovation and build capacity to support the existing and expanded use of nuclear power and nuclear science applications. The publications include information covering all policy, technological and management aspects of the definition and implementation of activities involving the peaceful use of nuclear technology. While the guidance provided in IAEA Nuclear Energy Series publications does not constitute Member States’ consensus, it has undergone internal peer review and been made available to Member States for comment prior to publication.

The IAEA safety standards establish fundamental principles, requirements and recommendations to ensure nuclear safety and serve as a global reference for protecting people and the environment from harmful effects of ionizing radiation.

When IAEA Nuclear Energy Series publications address safety, it is ensured that the IAEA safety standards are referred to as the current boundary conditions for the application of nuclear technology.

Climate warming concerns have increased in many areas of society in recent years. These concerns have great potential to affect many areas of energy production and consumption. Some areas that currently consume large quantities of fossil fuels are process heat for industry, the production of hydrogen, residential heating and the desalination of seawater. Energy consumption is also likely to grow with increasing global population, in a world that aims for expanded access to energy and sustainable economic development. Continued or expanded use of fossil based energy sources for these activities would lead to increased emissions of carbon dioxide and other climate change agents. This path is unsustainable if the catastrophic effects of climate change are to be avoided.

Nuclear energy is essential in its ability to provide large amounts of clean and reliable energy. It is therefore well positioned to be the energy source of choice for a wide range of activities beyond electric power generation. Many concepts under current research and development involve cogeneration, with a nuclear power plant both generating electricity and transferring a portion of the heat directly to another energy demanding activity. Some operating experience already exists for such installations. Challenges to widespread application of nuclear cogeneration remain, but a compelling case is being made in various countries for its contribution to mitigating climate change, while also reducing air pollution and providing an increase in the efficiency of energy conversion.

Any project involving nuclear energy will have certain unique considerations and will call for careful project planning, management and execution. Vendors of nuclear power plants and equipment should work closely with users of cogeneration facilities and their associated equipment, who may have little knowledge of nuclear power plants. Nuclear cogeneration projects are inherently complex and require careful adherence to nuclear safety and security principles and practices. They require expertise in a wide range of subjects. This publication is intended to provide general information, perspectives, background and key references to assist both vendors and users in making decisions regarding nuclear cogeneration facilities and in designing successful nuclear cogeneration projects.

This publication was compiled based on evaluations of officially issued reports and published papers as well as contributions provided by national experts. The IAEA wishes to thank the contributors to the drafting and review of this publication. The IAEA officers responsible for this publication were A. Constantin and I. Khamis of the Division of Nuclear Power.

Editorial note:

This publication has been edited by the editorial staff of the IAEA to the extent considered necessary for the reader’s assistance. It does not address questions of responsibility, legal or otherwise, for acts or omissions on the part of any person.

Guidance and recommendations provided here in relation to identified good practices represent experts’ opinions but are not made on the basis of a consensus of all Member States.

Although great care has been taken to maintain the accuracy of information contained in this publication, neither the IAEA nor its Member States assume any responsibility for consequences which may arise from its use.

The use of particular designations of countries or territories does not imply any judgement by the publisher, the IAEA, as to the legal status of such countries or territories, of their authorities and institutions or of the delimitation of their boundaries.

The mention of names of specific companies or products (whether or not indicated as registered) does not imply any intention to infringe proprietary rights, nor should it be construed as an endorsement or recommendation on the part of the IAEA.

The IAEA has no responsibility for the persistence or accuracy of URLs for external or third party Internet web sites referred to in this publication and does not guarantee that any content on such web sites is, or will remain, accurate or appropriate.

The authoritative version of this publication is the hard copy issued at the same time and available as pdf on www.iaea.org/publications. To create this version for e-readers, certain changes have been made, including a the movement of some figures and tables.

CONTENTS

1. INTRODUCTION

1.1. Background

1.2. Objective

1.3. Scope

1.4. Structure

2. NUCLEAR COGENERATION SYSTEMS

2.1. Examples of nuclear cogeneration systems

2.2. Overview of nuclear cogeneration projects

3. STAKEHOLDER INVOLVEMENT IN NUCLEAR COGENERATION PROJECTS

3.1. Stakeholders for a nuclear cogeneration project

3.2. Stakeholder involvement principles for users and vendors

4. USER AND VENDOR ROLES IN NUCLEAR COGENERATION PROJECTS

4.1. Relationship between user and vendor

4.2. Roles of user and vendor

4.3. Considerations specific to nuclear cogeneration projects

5. REQUIREMENTS FOR USERS AND VENDORS

5.1. Economic aspects

5.2. Technical requirements

5.3. Safety considerations

5.4. Environmental protection

5.5. Regulatory requirements

5.6. Contractual aspects

6. USER AND VENDOR RESPONSIBILITIES

6.1. Economic aspects

6.2. Technical aspects

6.3. Safety considerations

6.4. Environmental protection

6.5. Regulatory responsibilities

6.6. Contractual responsibilities

6.7. Communication aspects

7. ADDITIONAL INFORMATION FOR USER AND VENDOR

7.1. Market mapping

7.2. Understanding end user needs

7.3. Feasibility

7.4. Stakeholder involvement/participation

7.5. Vendor selection

7.6. Negotiation of the business model

7.7. Authorization for construction and operation

7.8. Procurement

7.9. Contracting

7.10. Design

7.11. Project implementation

7.12. Operation

7.13. Decommissioning

8. EXAMPLES OF NUCLEAR COGENERATION PROJECTS

8.1. Operational npp with retrofit district heating: Beznau npp, Switzerland

8.2. Operational npp with desalination: Ohi npp, Japan

8.3. Future new build industrial steam production: htgr npp with steam cogeneration, Poland

8.4. Future new build hydrogen production: gthtr300c, japan

9. CONCLUSIONS

9.1. Main conclusions

9.2. Suggestions

REFERENCES

BIBLIOGRAPHY

ABBREVIATIONS

CONTRIBUTORS TO DRAFTING AND REVIEW

STRUCTURE OF THE IAEA NUCLEAR ENERGY SERIES

1. INTRODUCTION

1.1. Background

The delivery of nuclear cogeneration projects (to produce electricity and process heat for non-electric applications such as desalination, district heating or cooling, hydrogen production, etc.) requires clear understanding of tasks that are the responsibility of various stakeholders during the design, operation and management phases. Cogeneration projects are inherently complex, regardless of the energy source, because there are diverse energy outputs. The use of nuclear energy adds further complexity.

At a high level, project management principles are common to any multifaceted project. However, detailed project management considerations for nuclear cogeneration reflect the complexity and uniqueness of such projects, as discussed in this publication. To facilitate effective implementation of such projects, there should be a preliminary exchange of information among the involved parties, especially concerning siting and potential sharing of resources, the envisaged utilization of the cogenerated commodity, the status and selection of the technologies for the coupled industrial plant, financial constraints and considerations, etc. For example, during the deployment stage, various elements should be made clear to all parties involved, including licensing issues and procedures; responsibilities for the project management of tasks and sub-tasks; the business model and the stakeholders’ relationships, especially those between vendors and users of the nuclear cogeneration projects (i.e. the vendors and users for the nuclear power plant and the vendors and users for the cogeneration’s applications, e.g. process heat, desalination, etc.); and the overall management of the coordination of nuclear cogeneration projects related to the suppliers, contractors and end users.

Nuclear cogeneration projects are implicitly nuclear power infrastructure projects and there are many similarities in the implementation of such projects. Hence, in addition to addressing the specifics of nuclear cogeneration projects, this publication aims to capture the high level aspects of nuclear power infrastructure projects to offer a more comprehensive perspective to readers. These were addressed in-depth in a series of other IAEA publications and resources that are referenced in this publication with the purpose of establishing the grounds for understanding nuclear cogeneration projects.

Several business models have been developed for nuclear cogeneration projects. As a result, additional user and vendor requirements and responsibilities are involved, depending on the extent of integration among the stakeholders (owner, operators, users, etc.). In the non-integrated project model, for example, each core activity (energy contract management, energy distribution, plant operation, etc.) is the business of a specific company whose responsibilities are limited to the scope of the work of that company. In the user owned model, as another example, one of the users (usually the largest industrial application of the business cluster) owns the nuclear power plant (NPP¹) and cogeneration plant. This may result from the business consideration of securing the supply of heat and power and enabling the industrial plant to operate continuously. Depending on the qualification, the main user may manage all cash flows, operate the nuclear cogeneration plant, and own and/or operate the distributing system. In all business models, an energy manager is a key stakeholder whose role between the plant and the users is crucial to managing the risks and creating economic value for the project. These aspects are covered thoroughly in Alternative Contracting and Ownership Approaches for New Nuclear Power Plants (IAEA-TECDOC-1750) [1], which was under revision at the time of writing.

This publication focuses on analysing the requirements and responsibilities of users and vendors and the correspondence between them through the life cycle of a nuclear cogeneration project, and highlighting the experience and lessons learned from retrofit and new build projects, given the significant potential of and new interest concerning both types of projects worldwide.

This publication has been prepared in response to the 12th resolution of the 60th General Conference (GC(60)/RES/12/4.4.b) of the IAEA on Strengthening the Agency’s Activities Related to Nuclear Science, Technology and Applications, requesting the Director General to Issue a technical report addressing responsibilities of vendors and users involved in nuclear desalination projects, and assessing different scenarios for cogeneration.

1.2. Objective

The objective of this publication is to provide information, perspectives and background to assist actual or potential vendors and users involved in the planning, execution and life cycle management of a nuclear cogeneration project. It accomplishes this by discussion of the general principles involved, reference to key guidance documents, reference to operating experience from past cogeneration projects and perspectives from major current developing projects. The subject matter addressed includes economics, technology, nuclear and non-nuclear safety, environmental and regulatory considerations, and communication with stakeholders.

This publication references and builds upon the direction provided in Guidance on Nuclear Energy Cogeneration (IAEA Nuclear Energy Series No. NP-T-1.17) [2], which provides generic guidance on the merits of cogeneration, steps during implementation and information for Member States embarking on cogeneration with nuclear energy. As stated above, this publication focuses specifically on guidance for vendors and users.

As discussed in this publication, ‘vendors’ are the designers, manufacturers and providers of equipment for the nuclear cogeneration projects. Some of this equipment will be related to the nuclear power plant that supports cogeneration, while other equipment will be related to the non-nuclear Part of the cogeneration project. The boundary between the nuclear and non-nuclear sides is important, because the applicable requirements are typically much less stringent for non-nuclear structures, systems and components (SSCs), as compared to nuclear SSCs. Vendors are companies and entities providing goods and services, including plant engineering, equipment manufacturing, civil construction and site installation, operation and maintenance services, and other technical support and services for the nuclear reactor and associated cogeneration facilities.

In this publication, ‘users’ are owner/operators of cogeneration facilities for whom the vendors provide energy generation and