Seeing Temporary Power in a Different Light
A major construction programme uncovered significant savings by understanding real power demand, removing equipment that added no value, and helping site teams make clearer decisions.
Right Power for a Changing Site
The Challenge
Temporary power on construction sites rarely grows by design. It grows through habit.
As works progress, teams add generators to protect production, but no one is tasked with stepping back and asking whether the equipment still reflects the reality of the site.
Some sets were oversized. Others had been left running for convenience. In several locations, generators were working against minimal load, offering no operational benefit but generating unnecessary cost.
The issue was not a lack of effort. It was a lack of visibility. Without a clear view of real demand, teams made decisions based on assumption rather than fact.
The programme needed clarity. Not a rewrite of the power strategy. Just the truth about what was actually needed.
Our Approach
Vanta visited a selection of live sites and looked at temporary power through a practical lens. Not theoretical modelling. Not supplier reports. Real usage in real conditions.
We focused on five simple questions:
What is the genuine load on this set
Has the phase of work changed
Is there duplication between adjacent areas
Why was this equipment chosen in the first place
Does the current setup reflect today rather than last month
This approach allowed us to filter out noise.
We traced oversizing back to earlier project stages.
We found sets that were only there because a previous activity had required them.
We identified equipment that remained because no one wanted to risk removing it.
Working with site teams, we reshaped the generator plan without disrupting progress. Some units were removed entirely. Others were swapped for smaller sets. In a few cases, one generator replaced two.
It was not a technical exercise. It was a clarity exercise.
The Impact
The results were immediate and visible across the programme.
Large sets were removed where load did not support their presence
Smaller units replaced equipment that had been oversized for months
Duplicate provision between adjacent work fronts was removed
Behaviour improved because teams understood the reason behind each decision
Supplier engagement became simpler with fewer unnecessary requests
The financial impact was clear, but the cultural impact mattered more.
Power planning became deliberate, not reactive.
The programme now manages temporary power with a level of discipline that reflects the scale of the work.
Project Overview
Vanta Insite™
The Vanta Desk™
Construction
£250k - £500k
UK
Once we saw the real load, everything changed. We removed equipment that had been sitting there without purpose and matched the rest to what the site actually needed. It made our decisions clearer and our costs better controlled.
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