Not all solar panels are made in the same way. From the outside, most look identical.
But behind the product, there can be a very different story about how workers are treated, how materials are sourced, and how supply chains are run.
Having achieved an EcoVadis silver rating, Perlight now sits in the top 15% of assessed companies globally.
For installers specifying their panels, that independently verified credential changes what you can say to a client, in a tender, and to a procurement officer.
Why This Matters to You as an Installer
When you specify a panel, you’re not just choosing a product. You’re putting your name to it.
That comes with an expectation that:
- it’s been made responsibly
- it hasn’t cut corners
- it reflects well on your business
Because if those questions come up later – in a tender, from a client, in a procurement questionnaire – you’re the one they ask.

What an EcoVadis Sustainability Rating Measures
EcoVadis is one of the world’s most widely used independent sustainability assessment platforms, trusted by over 130,000 companies globally.
Unlike self-reported ESG claims, an EcoVadis sustainability rating is built on verified evidence such as policies, audit results, and supply chain documentation. These are assessed across four areas:
• Environment: manufacturing processes and environmental impact
• Labour & human rights: working conditions and workforce protections
• Ethics: governance, transparency, anti-corruption
• Responsible procurement: supply chains free from forced labour and abuse
This isn’t a one-time badge as EcoVadis reassesses ratings on an ongoing basis.
An EcoVadis Silver rating means a company is performing above average across all these four areas, and independently proving it on an ongoing basis.
Perlight’s Sustainability Credentials: A Standard Built Over Time
Perlight has been working to recognised ethical and social standards long before sustainability credentials became a standard part of procurement conversations.
That includes SA8000 certification, one of the leading global standards for fair working conditions and workers’ rights, and SEDEX membership, which supports transparent supply chain management.
These aren’t recent additions, they reflect how Perlight has operated for years. The EcoVadis Silver rating brings that track record into a single, independently benchmarked score.
A Decision You Can Stand Behind
Performance and price will always matter. But increasingly, so does provenance.
Working with manufacturers who can independently demonstrate how they operate makes every specification easier to stand behind.
Perlight’s EcoVadis Silver rating gives you:
• a credible, auditable answer when clients ask about responsible sourcing
• a recognised credential for commercial and public-sector pre-qualification
• confidence that your supply chain is built on standards that hold up to scrutiny
About Westech Solar and Perlight
Westech Solar have been the official UK and EU representative of Perlight Solar for over 15 years.
In that time we’ve seen firsthand how Perlight operates, the consistency of supply, the quality of product, and a manufacturer that backs its partners for the long term.
The EcoVadis Silver rating puts independent verification behind what we’ve known for years.
Because ultimately, you’re not just choosing a panel. You’re choosing what sits behind it.
Speak to the Westech team to see how Perlight fits into your projects.




