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The power of audit trails: Why transparency matters in O&M

  • Writer: Hannah Allen
    Hannah Allen
  • Aug 26
  • 2 min read

Darren Lewis | 26/8/2025



In solar operations and maintenance, it is not just about what gets done — it is about being able to show how, when and why it was done. That is where audit trails become invaluable.


At Solar Group Utilities, we build transparency into everything we do. Our engineers are not just fixing issues on site — they are also documenting each step, capturing photographic evidence, and feeding updates back to clients in real time.


This approach supports better decision-making, builds trust, and protects long-term asset value.


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What is an O&M audit trail?


An audit trail is a clear, traceable record of work carried out on a solar site. It includes dates, times, engineer notes, photos, system readings and any remedial actions taken.


We believe a good audit trail should tell a complete story — from identifying the issue to closing it out.



Why it matters for asset owners


For funds and asset managers, audit trails offer:


  • Clear visibility on site performance and intervention timelines

  • Evidence for warranty claims or performance guarantees

  • Confidence in compliance with HSE and site access policies

  • The ability to challenge costs with accurate records of time on site and tasks completed



It also provides reassurance to stakeholders and board-level investors, who are often looking for detailed reporting and documentation — not just headline performance figures.



How SGU leads on transparency


At SGU, audit trails are standard — not a bolt-on extra. Every engineer is equipped with the tools and training to document tasks in the field, and every client benefits from:


  • Real-time photographic reporting

  • Timestamped logs of attendance and issue resolution

  • Full visibility on what was found, what was done and what is recommended next



This has become particularly useful when reviewing underperformance, planning capex improvements, or justifying the cost of specialist repairs.



A culture of accountability


We do not believe in “just ticking the box.” A detailed audit trail protects not just the client — but also the integrity of our service. It makes handovers easier, reduces risk, and allows us to look back at historic patterns with clarity.



For us, that is what proper O&M looks like.



 
 
Image by Danist Soh

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About the authors
Darren Lewis
Managing Director


Darren is responsible for all operational aspects of our service provision. This includes site survey, workflow, training and the assessment, onboarding and development of our contract partners. With 25 Years in Electrical Installation and PV, there is a huge amount of industry change that he has been an integral part of and his approach is that every day brings a new opportunity for further process improvement.

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Stuart Spiers Solar Group.jpg
Stuart Spiers
Managing Director

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Stuart has direct responsibility for all technical, including, monitoring, reporting, analysis, inspections and testing. Stuart has a diverse background that spans over 25 years in PV and Renewable and Project Management across large-scale commercial construction, demolition and water supply.

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Because we care, we’re driven by purpose and powered by care. Let’s work together to make your solar system thrive and contribute to a brighter, more sustainable tomorrow.

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