Modern building controls are helping schools of all sizes reduce energy costs, improve comfort, and create better learning environments - without the need for major building work or specialist expertise.
Smarter control for today’s school buildings
Schools across the UK are under increasing pressure. Energy costs remain high, many buildings are ageing, and expectations around sustainability and student wellbeing continue to rise - all against the backdrop of tight budgets.
At the same time, there is growing awareness that the condition of school buildings directly affects how well students learn. Temperature, air quality and comfort all play an important role in concentration, attendance and overall wellbeing.
Building Energy Management Systems (BEMS) offer a practical and achievable way for schools to take better control of their buildings. Rather than being “high-end” or complex technology, modern BEMS can be introduced gradually, delivering benefits quickly and growing over time as budgets allow.
Reducing energy costs without increasing complexity
For many schools, energy is one of the largest controllable costs - yet much of it is still wasted through heating empty rooms, running systems longer than needed, or relying on manual adjustments.
BEMS help by allowing schools to monitor and manage heating, ventilation and lighting more effectively, based on how spaces are actually used. Classrooms, halls and offices can follow realistic schedules, automatically adjust for occupancy, and avoid unnecessary energy use.
Crucially, this does not have to be an “all-or-nothing” project.
Modern BEMS are scalable, meaning schools can:
Start with the areas that use the most energy or cause the most complaints
Identify the biggest savings first
Build the system over time as funding becomes available
Studies show that even modest systems can deliver energy savings of around 20%, with more comprehensive solutions achieving up to 50%. Compared to major plant upgrades, controls often offer much shorter payback periods, typically within just a few years.
For schools working within tight financial constraints, this makes building controls one of the most realistic and cost-effective starting points.
Affordable upgrades through wireless technology
One of the biggest changes in recent years is the rise of wireless sensors and radiator actuators, which significantly reduce both the cost and disruption of installation.
Wireless devices can:
Be installed quickly, often without running new cabling
Reduce labour and installation costs
Minimise disruption to lessons and daily activities
For example, wireless room sensors can monitor temperature and air quality, while radiator actuators automatically adjust heat output in individual rooms. This means overheating classrooms or cold spots can be addressed without altering the entire system.
Because these technologies are easier to fit, they are now within reach of smaller schools, older buildings, and even individual areas such as a single classroom block or SEN facility.
Schools can start small, prove the value, and expand when ready.
Supporting student health, wellbeing and performance
While cost savings are often the first motivation, the impact on students is just as important.
Research consistently shows that poor indoor conditions such as stale air, high CO₂ levels or inconsistent temperatures can reduce concentration, increase tiredness and contribute to higher absenteeism.
Better ventilation and temperature control have been linked to:
Fewer illness-related absences
Improved concentration and behaviour
Measurable improvements in learning outcomes
In plain terms, when classrooms are comfortable and well-ventilated, students learn better.
Even relatively small improvements, applied consistently across a school or trust, can have a meaningful impact on attendance, attainment and overall wellbeing.
Benefits beyond the school gates
Reducing illness-related absence doesn’t just help pupils. It also:
Supports parents and carers who may otherwise need time off work
Reduces pressure on school staff managing cover
Contributes to wider economic productivity
With millions of school sessions lost each year due to illness, improving indoor conditions delivers benefits far beyond energy savings alone.
Overcoming perceived barriers
Despite the benefits, some schools still view BEMS as too complex, expensive or advanced for their needs. In reality, this perception is often outdated.
Today’s systems are:
Modular, not monolithic
Adaptable to existing heating systems
Suitable for phased upgrades rather than large capital projects
Importantly, BEMS do not require specialist onsite expertise. Many systems are designed to be intuitive and easy to manage, with remote support available where needed.
A realistic route to lower-carbon schools
With most school buildings set to remain in use for decades, improving how they operate is essential.
As Ron Purcell, Vice President of the Building Controls Industry Association and Product Manager at Siemens, explains:
“Building energy management systems offer a practical and scalable way for schools to take control of their energy use. They allow schools to start where it makes sense, focus on quick wins, and grow over time — improving comfort, reducing costs and cutting carbon without major disruption.”
Looking ahead
BEMS are not just for large or newly built schools. With wireless technology, scalable design and proven results, they are now a realistic option for schools of all sizes.
By starting small, targeting the biggest opportunities, and building over time, schools can create better learning environments, reduce operational costs and support long-term sustainability goals.
Simply put: better-controlled buildings support better learning.