July 16 2025
Real Data, Smarter Engineering
In a sector still dominated by outdated rules of thumb, it’s time for a smarter, evidence-based approach.
In a sector still dominated by outdated rules of thumb, it’s time for a smarter, evidence-based approach. Too many building systems are still designed using broad assumptions—ones that don’t account for modern technologies, real-world usage, or actual building performance.
This outdated thinking has real consequences. With rising capital costs, increasing material prices, and a heightened focus on embodied carbon, oversizing systems it’s expensive and environmentally damaging.
At Contollo, we take a different path.
Traditionally, systems like transformers and utility connections have been oversized using conservative estimates. Our approach is to design based on real data, from buildings that are already in operation.
Take our work on DfE schools: by analysing actual metered usage and peak demand, we can more accurately determine energy needs. This often allows for reduced incoming supply requirements, which leads to lower capital costs, smaller plant, savings that can be reinvested into the building itself.
To support this, we’ve developed a proprietary online tool. It compares predicted loads with real energy data from student-occupied schools, helping design teams make decisions based on actual performance, not outdated benchmarks.
For example, feasibility studies have long used a standard allowance of 120 W/m². But our analysis shows that, in the right context, demand can safely be reduced to 40-60 W/m². We know designs still need flexibility and safety margins, but smarter sizing—guided by real data—offers a better balance between resilience and efficiency, especially as we work to reduce the carbon footprint of new builds.
As we gather more data, our tool continues to evolve—identifying anomalies in existing buildings (like retained blocks or swimming/hydrotherapy pools) and scaling its insights to other sectors.
Why Smarter Engineering Matters
Designing based on real performance data allows us to:
- Avoid overspecification of key systems like transformers, switchgear, and cabling
- Reduce embodied carbon through leaner, more efficient infrastructure
- Lower capital expenditure
Smarter engineering delivers systems that perform better, cost less, and support a more sustainable built environment.
Our process is built on continuous learning. Through Building Performance Evaluations (BPE) and Post-Occupancy Evaluations (POE), we feed real-world insights back into future designs—ensuring that each project is more intelligent than the last.