Join Us

Only solution tailored to solar

Only global initiative specifically tailored to the solar industry, ensuring participants engage in targeted efforts to improve ESG performance and responsible production.

Comprehensive approach

Only scheme that takes a comprehensive approach to sustainability, encompassing ESG aspects as well as supply chain transparency.

Independent third-party verification

The SSI is based on independent third-party verification, ensuring credibility with non-industry stakeholders as well as a fairer and more accurate assessment.

Multi-stakeholder collaboration

Collaboration among various stakeholders as well as civil society and academia: a key indicator of the credibility of a scheme and valued in upcoming legislation.

Supply chain transparency

Creating end-to-end supply chain transparency to ensure ESG standards are upheld throughout the value chain.

Leading industry expertise

Unrivalled expertise in solar, ESG auditing and product traceability, which ensures proactive alignment with EU & UK legislation

How to Join the SSI

Select the type of membership that is best for your organisation.
Download and complete the SSI membership application form to register your interest.
The SSI Secretariat carries out its standard due diligence procedure for manufacturing members and issues a recommendation to the SSI Board.
Your application will either be approved or rejected by the SSI Board based on the Secretariat’s recommendation.
Upon approval, pay your membership fee invoice.
Welcome to SSI membership!

SSI Membership Benefits

Members looking to join the SSI must commit to the following core objectives:

Core Objectives of the SSI

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

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

3. Enable continuous improvement of environmental, social and governance (ESG) performance.

4. Prepare the industry for relevant upcoming laws and regulations on ESG, transparency and responsible supply chains.

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

Help Define the Solar Sector

We welcome manufacturers, developers, installers, and purchasers in the solar value chain to join the SSI as members, and other stakeholders to apply to the Stakeholder Advisory Group (SAG). Together, we are working to realise our collective mission to foster responsible production, sourcing, and stewardship of materials.

SSI membership is your chance to get involved in these sector-defining Standards from their very inception. Membership of the SSI will support your company’s preparation for upcoming legislation. Since its beginning, the SSI has also secured the endorsement of the global financial community, through the International Finance Corporation (World Bank Group) and the European Investment Bank.

Becoming a member of the SSI signifies a commitment to the SSI Principles. Manufacturing sites achieve certification by successfully completing the SSI assurance process, which includes an initial independent assessment within the first 12 months of joining. At present, the SSI does not certify products, although product certification may be introduced in the future. The SSI does not certify companies.