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Argonne National Laboratory

Net Zero World Workshops

Joint NZWAC-IAEA International Workshop on Energy System-wide Analysis of Net Zero Pathways

The Joint NZWAC-IAEA International Workshop was convened by Argonne on April 20-22, 2022.

This workshop was jointly hosted by the U.S. Net Zero World Action Center (NZWAC) and the International Atomic Energy Agency’s Planning and Economic Studies Section (IAEA-PESS). The objective of the workshop was to bring together representatives of countries participating in the Net Zero World Initiative and experts from invited organizations to share their experience on energy system-wide modeling and analysis conducted to inform decision making on national plans for net zero carbon pathways. Experts introduced relevant tools and methodologies available through the NZWAC and the IAEA, presented and discussed data requirements, and discussed analytical and modeling capacity building assistance needed to conduct a comprehensive energy system analysis as a foundation for the development of national plans, roadmaps, and strategies to accelerate the transition towards net-zero energy systems.

This free workshop was open to participants from countries participating in the Net Zero World Initiative.

The workshop was the first step of a capacity building and peer learning process during which participating countries will apply various energy system assessment models to evaluate and compare a range of cost-effective energy technologies and implementation measures and their potential role in achieving net-zero energy systems.

Workshop Format

The workshop was conducted as virtual/online event. All sessions were conducted in English. Workshop participants were invited to present the status of net-zero-carbon modeling in their respective countries. This was followed by a series of technical presentations on modeling tools used for the design of country-specific net zero pathways delivered by experts from the NZWAC, the IAEA, as well as invited international organizations. The event wrapped up with a discussion to identify specific technical assistance needs for each country for the 6-12 months following the workshop. More in-depths discussions on specific assistance will need to be conducted in the future.

Course Facilitators



Contact Information 

Guenter Conzelmann  

Course Director 


Hyekyung Clarisse Kim 

NZWAC Technical Team 


Mario Tot 

IAEA Scientific Secretary 


Sunaree Hamilton 

IAEA Program Manager 


Kayla McClain 

Administrative Support 



Day 1, Session 1

Welcome Session: Paul Kearns, Argonne Laboratory Director
Opening Remarks: Maria DiGiulian, NZWAC/USG & Henri Paillere, IAEA
Workshop Overview/Objectives: Guenter Conzelmann, NZWAC (View PDF)

Day 1, Session 2

Introduction to Net Zero World Initiative and Action Center and IAEA Planning and Economics Studies


Day 1, Session 3

NZWAC Country Presentations Session 1: Review of current decarbonization modeling activities in Indonesia and Nigeria.


  • Beni Suryadi - Indonesia
  • A.S. Ahmed - Nigeria

Facilitator: Meredydd Evans, NZWAC 

Day 2, Session 1

NZWAC Country Presentations Session 2: Review of current decarbonization modelling activities in Argentina, Chile, and Egypt.


  • Gustavo Barbaran - Argentina
  • Jerson Reyes - Chile
  • Rehab Beder - Egypt

Facilitator: Sadie Cox, NZWAC 

Day 2, Session 2

Keynote: Net-Zero Pathway Modeling for IEA’s Net Zero by 2050 Report

Speaker: Brent Wanner, IEA 

Day 2, Session 3

Summary of Different Energy System-wide Decarbonization Modeling Tools (including metrics to monitor progress toward decarbonization and how sector tools can be linked to system-wide tools)

Speaker: Todd Levin, NZWAC (View PDF)

Day 3, Session 1

Energy System-wide Decarbonization Model Session

Models presented:

Facilitators: Nan Zhou and H.Clarisse Kim, NZWAC 

Day 3, Session 2

Plans for the Week after the Workshop and 6-12 Months Perspectives and Course Wrap-up

Facilitators: Nan Zhou (View PDF), H. Clarisse Kim, and Guenter Conzelmann (View PDF)NZWAC