The conversations at emex 2025 reflected a familiar challenge for energy and sustainability professionals: ambition is high, but delivery is getting harder. New legislation, rising energy costs and increased scrutiny around building performance are placing real pressure on organisations to move from intent to evidence-backed action.
Requirements such as Awaab’s Law, alongside government targets to raise housing stock to a minimum EPC rating of C, are reshaping how energy performance is assessed and managed. For those responsible for estates, housing portfolios or complex buildings, the challenge is not just identifying inefficiency, it’s proving improvement and prioritising investment with confidence.
One of the recurring themes across emex was the need for better data. While high-level energy bills and smart meter readings provide useful context, they rarely tell the full story. Energy use is influenced by building fabric, heating systems, ventilation strategies, occupancy patterns and user behaviour. Without visibility at this level, inefficiencies can remain hidden and interventions risk being misdirected.
This is where temporary, targeted monitoring has become an increasingly valuable tool. Energy loggers allow professionals to measure real electrical consumption over time, identify abnormal loads, and understand how systems behave during occupied and unoccupied periods. When used alongside temperature, humidity and CO2 monitoring, this data provides a clearer picture of how buildings actually perform – not just how they were designed to perform.
At emex, there was strong interest in solutions that support this evidence-led approach. Tinytag Energy Loggers, alongside the wider Tinytag environmental data logger range, are widely used across commercial, public sector and residential applications to support energy audits, retrofit projects and compliance-driven assessments. Their appeal lies in their simplicity: no permanent installation, no disruption, just reliable data that can be used to inform decisions.
For sustainability and energy managers, this kind of insight is increasingly essential. Whether the goal is to reduce running costs, improve EPC ratings or demonstrate compliance with emerging legislation, accurate measurement provides the foundation. It enables teams to target quick wins, validate the impact of change and build a defensible case for longer-term investment.
As the conversations at emex made clear, the transition to lower-carbon, more efficient buildings is well underway. The organisations making the most progress are those grounding their strategies in real-world data, turning energy ambition into measurable action.
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