Who we are

The Solar Stewardship Initiative (SSI) was set in motion by SolarPower Europe and Solar Energy UK in March 2021, as part of a programme established in 2015 to promote responsible production in the solar value chain.

The official launch of the SSI in September 2022 marks a critical milestone for the solar industry.

Through our strategic Roadmap and Code the SSI puts into practice the shared commitment of over 50 companies to ensure the integrity of their supply chains and improve ESG performance.

our mission

The Solar Stewardship Initiative works collaboratively with manufacturers, developers, installers and purchasers across the global solar value chain to foster responsible production, sourcing and stewardship of materials.

Over 50 organisations are behind the Initiative, which has the support of the International Finance Corporation (World Bank Group) and the European Investment Bank. 

View the full list of SSI supporters and get in touch to find out more about our community

OUR mission


Ensure the energy transition is just, inclusive, and respects human rights




Establish mechanisms to create supply-chain transparency, ensuring integrity in the global solar industry




Enable continuous improvement of ESG performance


Prepare our community for relevant upcoming laws and regulations on responsible supply chains (for example the EU Corporate Sustainability Due Diligence Directive, and ban on forced labour products)


Build the confidence of regulators, customers and business partners in the sustainability of the solar value chain


Coordination Team

- Organizes meetings of the SCT working group and the sponsors group

-Oversees the project execution, timeline and budget

Sponsors Group

(approx. 50 companies)

- Regularly consulted on strategic decisions regarding the SSI

- Validates deliverables and milestones

SCT working group

40+ companies

- Discusses topics relevant to the SSI and its development

- Platform for knowledge sharing

The Solar Stewardship Initiative is managed by SolarPower Europe and Solar Energy UK, with the support of leading sustainability and solar supply chain experts.

The management is executed by the SolarPower Europe Supply Chain Transparency Workstream, which gathers 50+ members covering the entire industry: buyers, suppliers, research centres and think tanks, advisory, national industry associations, asset management funds, developers, utilities companies, independent power producers, and suppliers of inverters, raw materials, balance of system.

The Supply Chain Transparency Workstream includes the coordination team, comprised of SolarPower Europe and Solar Energy UK members, and the Solar Stewardship Initiative sponsor committee. The sponsor committee is comprised of approximately 30 sponsors, both buyers and suppliers of solar PV modules and inverters. The sponsors represent a major market share, and contribute financially and oversee the work on SSI.

The Solar Stewardship Initiative is in the process of designing a governance structure with multi-stakeholder participation to be announced in January 2023.

Follow the Solar Stewardship Initiative’s Progress