Technology Collaboration Programme

Advancing the research, development and commercialisation of energy technologies

The IEA Technology Collaboration Programme supports the work of 38 independent, international groups of experts that enable governments and industries from around the world to lead programmes and projects on a wide range of energy technologies and related issues.

More about collaboration on

Energy Technology Systems Analysis (ETSAP)

The ETSAP TCP, established in 1977, is among the longest running TCPs. Its mission is to support policy makers in improving the evidence base underpinning energy and environmental policy decisions. This is achieved through energy systems modelling tools and capability through a unique network of nearly 200 energy modelling teams from approximately seventy countries. The ETSAP TCP develops, improves and makes available the TIMES (and MARKAL) energy systems modelling platform. It also provides training to energy modellers to use this platform to build national, regional and global energy systems models. In addition, ETSAP supports policy makers in undertaking and interpreting energy technology assessments and scenario analysis to inform policy decisions.

Main areas of work

The current work programme of the ETSAP TCP focuses on understanding and facilitating the energy transition to achieve the "well-below 2°C goal" of the Paris Agreement. Focus is on:

  • Development and maintenance of tools and methodologies
  • Supporting research and development activities to advance state-of-the-art analysis

Key activities and accomplishments (2017-18)

  • "Limiting Global Warming to Well Below 2°C: Energy System Modelling and Policy Development" – an energy system modelling perspective on the feasibility of the ambition of the Paris Agreement
  • Introduced unit commitment and dispatch features in TIMES modelling framework to improve modelling of variable renewable electricity
  • Extended the global ETSAP TIMES Integrated Assessment Model (ETSAP-TIAM) to assess trade-offs and co-benefits between climate change and air pollution policies
  • Collaborated with IRENA to compare TIMES and REMAP modelling frameworks

Priorities and projects (2019-20)

  • Contribute to the development of NDCs and well- below 2°C target
  • Continue the development and improvement of tools, including modelling of variable renewables
  • Develop new approaches including human behaviour in energy system models
  • Improved modelling of the interaction between the energy system and the economy

Multilateral collaborations

  • The role of carbon capture and storage in integrated assessment models (with GHG TCP)
  • Representation of hydrogen in energy system models (with Hydrogen TCP)
  • The role of bioenergy in the energy system (with Bioenergy TCP)
  • Promote wider adoption and improved use of long-term model-based energy scenarios (with IRENA, supporting a Clean Energy Ministerial campaign)


  • ENEL Foundation
  • GE Global Research

Why should your organisation become a member of ETSAP?

The ETSAP TCP is a unique network of nearly 200 energy modelling teams in approximately seventy countries doing energy systems analysis to inform energy and climate policy decisions around the world.


Chair: Brian Ó Gallachóir, Ireland (

Primary contact: Kenneth Karlsson (

IEA: Uwe Remme (