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The Solar Stewardship Initiative (SSI) is an initiative to promote sustainable solar practices. Our stepwise approach aims to establish a fully functional multi-stakeholder initiative by late 2024.

SSI Transitional Governance (2023-2024)

The SSI Board, appointed for two years, is the primary decision-making body. Currently comprised of industry representatives drawn from the founding members, the Board is designed to be multi-stakeholder (by end of 2024). By uniting diverse stakeholders, including civil society, we create a broad, inclusive platform for dialogue and action, leading to more comprehensive and sustainable solutions for solar value chains. 

The Stakeholder Advisory Group (SAG), an integral part of SSI Governance, will represent diverse perspectives from civil society, academia, independent experts, and other relevant non-industry stakeholders. SAG members will advise the SSI Board on various aspects, ensuring a holistic approach to decision-making, and can be invited to be observers at Board meetings.

Various SSI working groups and committees will be established to facilitate targeted discussions and actions in line with our mission. For example, the SSI Supply Chain Traceability Standard, has now been developed into a working group.

From March 2024, the SSI Board has been composed of the following members: 

Solar PV Buyers

  • Giulia Guidi, Head of ESG, NextEnergy Group
  • Luis Gómez-Chavarría, Global Head of Renewable Supply Chain Contracting and Management, Iberdrola
  • Susannah Wood, VP Public Affairs and Sustainability for Europe, Statkraft

Solar PV Manufacturers

  • Thomas Richter, Vice President Quality, Solarwatt
  • Michael Koebele, Compliance Director, JA Solar
  • Peter Faisst, Senior Legal Consultant, Trina Solar


Founding trade associations

  • Maté Heisz, Director of Global Affairs, SolarPower Europe (Chair)
  • Gemma Grimes, Director of Policy, Solar Energy UK (Vice-Chair)

Stakeholder Advisory Group

The Stakeholder Advisory Group (SAG), an integral part of the SSI governance, will represent diverse non-industry perspectives, such as civil society (human rights and environmental NGOs), intergovernmental organisations, academia, research organisations, finance, and other relevant non-industry stakeholders. The SAG will advise the SSI Board on various topics, ensuring a holistic approach to decision making. The SSI Board will appoint members based on eligibility criteria, including balanced representation and relevant experience.

If you are passionate about solar’s sustainable future, consider applying for the Stakeholder Advisory Group. Contact us to express your interest in joining the SSI SAG.

Technical Advisory Group

The SSI Technical Advisory Group (TAG) will provide advice to the SSI Board. It is made up of consultants and advisors with relevant expertise in solar manufacturing, compliance, quality, assurance and/or ESG strategy and reporting.

Technical Working Groups

SSI working groups are appointed by the SSI Board and will contribute to standards, assurance systems, online platforms, and other relevant initiatives.

The SSI Traceability Working Group was launched on 18 March 2024, with the objective of publishing the Supply Chain Traceability Standard by the end of 2024. The Working Group will provide input into the Standard, but it will go through extensive stakeholder consultation before being published.

Find out more about the Supply Chain Traceability Standard.


The SSI Secretariat will oversee day-to-day operations, ensuring compliance with legal requirements, coordinating meetings, and managing finances.

Learn more about the SSI Secretariat.

Download the SSI Governance Terms of Reference