Can't find what you are looking for?

Put in a product request or contact our team and we'll be more than happy to help.

Request A Product


Welcome to Callidus Wholesale your trusted partner in the journey towards a sustainable and carbon-neutral future. We are a passionate team of professionals committed to driving the UK's transition to a net-zero economy by supporting the growth of solar PV installation across the nation.

Our Mission

At Callidus Wholesale our mission is clear: to empower solar PV installers and accelerate the adoption of solar energy solutions in the UK. We firmly believe that solar power is a cornerstone of achieving a cleaner, more sustainable future. Our motto is “ Solar done right, Service done better” what this means is we provide a wide range of high-quality solar products, exceptional customer service, and valuable resources, we aim to make it easier for installers, electrical wholesalers, building and plumbing merchants to thrive in this dynamic industry.

Why We Started

The urgency to address climate change and reduce carbon emissions has never been greater. As the United Kingdom strives to achieve its ambitious net-zero emissions target, we recognized a critical need for a reliable and forward-thinking solar wholesaler. We were founded by a couple of dedicated individuals who could see the need for extra capacity of solar products and, more importantly, training and support for the 100’s of new installers entering the market. Many of these installers come from a traditional Electrician, or Plumbing installation background and therefore do business differently to a PV Installer. For the UK to reach it’s Net Zero ambitions we will see many more installers enter the market and these guys will need support, training, and knowledge and this is something we offer; we visit independent electrical wholesalers and offer tech talks to their respective customer base, and we have invested in an after sales technical help desk to support new and existing installers as they enter and endure in a dynamic and ever changing environment.

Our Commitment

  • Quality Products: We source and distribute only the highest-quality solar panels, inverters, batteries, and related equipment. Our commitment to excellence ensures that every installation not only meets but exceeds industry standards.
  • Expert Guidance: Our team of experts is here to support installers at every stage of a project. Whether you need technical advice, product recommendations, or assistance with regulations, we're here to help.
  • Sustainable Partnerships: We actively seek out partnerships with manufacturers and suppliers who share our commitment to sustainability. Our partnerships enable us to offer the most advanced and environmentally-friendly products on the market.
  • Continuous Innovation: The solar industry is constantly evolving, and so are we. We stay ahead of the curve by staying informed about the latest technologies, regulations, and best practices. This knowledge is passed on to our installer partners, ensuring they remain at the forefront of the industry.

Our Vision

We envision a future where there is the clean, renewable energy is accessible to every corner of the UK. A future where solar panels grace rooftops, generate power in fields, and transform communities. By collaborating with forward-thinking solar PV installers, we aim to create a more sustainable, prosperous, and eco-friendly world for generations to come.

Join Us on the Journey

We invite solar PV installers, electrical wholesalers, and other merchants/resellers, from all backgrounds to join us on this exciting journey. Together, we can make a lasting impact on our environment and help the UK achieve its net-zero goals. Whether you're an experienced installer or just starting your journey in the solar industry, we are here to support you every step of the way.

Thank you for joining us on this journey as we build towards a greener and prosperous future.

Solar done right, Service done better.

David Martini
Managing Director,
Callidus Wholesale Ltd

Contact Us

We’d love to hear from you. Get in touch and speak to one of our team today.

Contact Us