Industry experts predict sub metering will be a huge trend for 2026 and it’s easy to see why. From industrial sites to commercial units, complex metering is enabling businesses to drive cost savings and hit compliance targets, making it popular with finance directors and sustainability leads. Rising energy costs and tougher government regulations have made it increasingly important for business leaders to understand where to target energy-saving measures to protect margins and stay compliant.
Technological advances redefining what’s possible
New advances in electricity sub metering have shifted from basic, manual data collection to sophisticated, real-time IoT-based systems, enhancing energy efficiency and enabling detailed, granular monitoring for commercial, industrial, and residential applications. Driven by the need to achieve Net Zero targets and rising energy costs, modern sub-metering offers high-resolution data (sometimes sub-second intervals) to optimise performance, facilitate accurate tenant billing and ensure compliance with government regulations. While it may sound costly and complex, the installation process can be handled smoothly by experts in complex metering, enabling fast access to transformative energy insights.
Why all businesses need sub metering
Where traditional energy meters provide an overview of energy consumption across the whole site, sub metering gives a more complete picture. It offers businesses granular visibility over their data usage, helping to identify the business areas which are more costly and offering actionable data insights to implement changes and drive down business operating costs.
This can be transformative for complex sites, such as warehouses, commercial offices, retail units, leisure facilities, and industrial sites predating 2014. It’s worth noting that many newer business sites already benefit from data intelligence gleaned from sub metering, which has been a requirement for all new business premises over 100m² since 2014.
Major energy users are sub metering’s biggest winners
For major energy users, the benefits are multifaceted. Intelligence gleaned via sub metering analytics transforms raw meter data into actionable insights, allowing end users and property managers to spot usage trends and optimise preventive maintenance. Insight into the energy consumption of different processes and equipment are particularly valuable for industries with high energy usage, as it allows insight into any faults or operating processes that need to be improved.
Sub metering can also act as an early warning sign, helping to detect issues like water leaks or electricity spikes that have the potential to cause significant damage or high bills, as well as identifying inefficient machinery requiring maintenance or fixes.
For multi-tenant buildings, including offices or retail spaces, sub metering can help ensure the billing process is fair and transparent, as it allows each user to pay only for what they consume.
Actionable insights
Sub meters can further drive down the cost of energy consumption by offering real-time data, encouraging more responsible energy behaviour and identifying opportunities for energy reduction. Studies show that individual sub meters can reduce utility consumption by 15–30 per cent. For industrial and commercial customers, sub metering can track specific energy loads like HVAC, lighting, or production lines, helping to identify ‘energy hogs’ or inefficient machinery that require maintenance or replacement.
“Sub meters are essential for end-user customers because they provide granular visibility into utility consumption that a single main meter cannot offer. They shift the focus from estimated billing to actual, data-driven usage.” — Colin Kristiansen
A win for compliance
The granularity and precision of data from complex metering also offers the insight to track carbon footprints and meet ESG and Net Zero targets. By helping to reduce carbon and support Energy Saving Opportunity Schemes (ESOS), sub metering enables businesses to achieve regulatory sustainability compliance targets, such as Streamlined Energy and Carbon Reporting (SECR) and Energy Performance Certificates (EPCs), and secure funding.
Accurate energy data not only keeps financial directors happy, but it also supports better energy procurement and helps businesses build better cases for capital expenditure projects. Any major energy user serious about protecting margins and meeting compliance targets needs to make sub meter installation a priority in 2026.