Celebrating 8 Years of Solar Group Utilities
By Hannah Allen | 14-1-25

This year marks an exciting milestone as we celebrate 8 years of Solar Group Utilities. From our beginnings as a trusted service provider to becoming a leader in solar operations and maintenance, our success has been shaped by the expertise and leadership of managing directors Darren Lewis and Stuart Spiers. Their combined efforts continue to drive innovation, optimise performance, and support sustainable energy solutions.
Operational and technical excellence
Darren leads our operational service provision, overseeing site surveys, workflow management, and the development of contract partners. With over 20 years of experience in electrical installation and PV, he is instrumental in fostering process improvements and ensuring seamless service delivery.
Stuart, with a similarly extensive background spanning renewable energy, PV, and project management across commercial construction, demolition, and water supply, manages technical operations. His expertise ensures precision in monitoring, reporting, analysis, inspections, and testing—key components in delivering high-quality solar O&M services.
Let's hear from Darren Lewis:
Smarter, transparent solutions
Under this leadership, Solar Group Utilities has adopted technology-driven, transparent processes that optimise solar performance and reduce operational costs. The implementation of advanced monitoring tools and real-time analytics allows us to provide comprehensive audit trails and greater accountability across our engineering teams nationwide.
Solutions tailored to the UK market
Their combined insight has been critical in addressing the specific challenges posed by the UK’s unique climate. Recognising that many PV installations were not optimised for local conditions, we’ve developed strategies to accurately assess risks, improve energy yield, and reduce costs for asset managers.
Darren and Stuart's passion and expertise continue to shape our journey toward innovation and excellence.

Stuart adds: We’re always striving for smarter, more effective ways to deliver optimal solar performance. My focus has always been on using technology and precision-driven insights to ensure every system we manage operates at its best. With over two decades in the renewable energy sector, I’ve seen how innovation and collaboration can transform outcomes—not just for our clients, but for the sustainability of energy itself
A culture of care and collaboration
The commitment to excellence has fostered a company culture rooted in care, collaboration, and innovation. Encouraging continuous improvement and forward-thinking solutions, our approach empowers the team to deliver exceptional results for clients and a more sustainable future.
Looking ahead
As we reflect on these successful years, we look forward to continued growth and innovation. The invaluable contributions of both Darren and Stuart have positioned Solar Group Utilities as a trusted partner in solar energy management, and we’re excited for what lies ahead.
Thank you to the entire team for your dedication and to Darren and Stuart for your inspiring leadership — driving our journey forward every day!