Building energy myth buster
Myth: Facilities teams should already know where the waste is
Facilities teams know buildings well. But hidden energy waste still needs data, diagnosis and support.
Energy waste is not always obvious from day-to-day building operation. It can sit between data, controls, contractors, occupancy, maintenance and management decisions.
A practical energy review should support facilities teams, not criticise them. The best results often come from combining energy data with the knowledge of the people who know the building best.
The reality
Knowing the building is not the same as having a full energy diagnosis
Facilities teams are often expected to know everything about how a building is running. They deal with plant, contractors, comfort issues, maintenance, access, faults and day-to-day operation.
But energy waste is not always visible. It may appear in half-hourly data, night-load, weekend consumption, control settings, old schedules or systems that are running longer than needed.
A building energy audit should help make that waste visible and give facilities, finance, operations and management teams a shared evidence base for action.
Where the myth goes wrong
Energy waste often sits between teams, systems and responsibilities
High energy use is rarely just one person’s problem. It can sit between facilities, finance, contractors, occupants, operations, sustainability teams and senior decision-makers.
Facilities see the building
They may know the plant, complaints and practical constraints, but not always the energy impact.
Finance sees the bills
Finance may know costs are high, but not which systems, schedules or behaviours are driving them.
Contractors see their system
Contractors may focus on the equipment they maintain or supply, rather than the whole building.
Occupants affect use
Working patterns, comfort expectations and room use can change without the controls being updated.
Data shows the pattern
Half-hourly data may reveal waste that is hard to spot from a normal site walkthrough.
No single owner
Energy actions can stall when nobody has the time, evidence or authority to keep them moving.
Support, not criticism
A practical energy review should help facilities teams make the case for action
Facilities teams are usually dealing with immediate priorities: comfort complaints, breakdowns, maintenance visits, contractor questions, access issues and keeping the building safe and usable.
Energy waste can become normal because the building still appears to function. Heating runs early to avoid complaints. Ventilation stays on because nobody wants to risk turning it off. Overrides remain because they once solved a problem.
A practical audit can provide evidence for issues that facilities teams may already suspect, and translate those issues into clear priorities for finance, management and contractors.
Data plus experience
Energy waste needs to be made visible before it can be managed
Some waste is obvious: lights left on, old equipment, open doors or poor insulation. But much of the useful evidence is in the pattern of energy use.
Half-hourly electricity data can show whether the building has a high night-load, whether weekend use remains high, whether energy drops when occupancy drops, and whether there are unexpected peaks.
That data becomes more valuable when it is interpreted with the people who understand the building’s history, constraints and day-to-day operation.
A practical review can help identify:
- hidden night-load
- out-of-hours energy use
- plant running longer than needed
- control settings that no longer match building use
- heating and cooling conflicts
- lighting or equipment left on unnecessarily
- contractor assumptions that need checking
The practical next step
Use a Building Energy Audit to connect data, site knowledge and action
The 10-Point Building Energy Review
Oxford Energy Services provides a fixed-fee Building Energy Audit for organisations that want to reduce waste, lower costs and make better energy decisions.
The audit is designed to support facilities teams by combining energy data, site inspection and practical building energy expertise. The aim is to identify avoidable waste and create clear next steps, not to blame the people managing the building.
What the review looks at
A 10-point check that supports facilities, finance and management decisions
The review looks across the main areas where buildings commonly waste energy and turns findings into practical priorities.
Energy data
Electricity and gas patterns, unusual consumption and evidence of avoidable waste.
Facilities insight
Practical knowledge of plant, complaints, maintenance issues and building constraints.
Heating
Boilers, zoning, set points, schedules and heating control issues.
Ventilation
Air handling, extract systems, fan operation and running hours.
Controls
Timers, BMS settings, sensors, overrides and poor control logic.
Lighting
Lighting type, zoning, occupancy patterns and control opportunities.
Out-of-hours use
Night-load, weekend consumption and energy use when the building should be quiet.
Contractors
Maintenance issues, proposed works, savings assumptions and areas needing follow-up.
Operations
How the building is actually used, occupied, maintained and managed day to day.
Action plan
Priority recommendations, likely causes, practical changes and next steps.
The outcome
Evidence that helps teams act with more confidence
You receive a practical summary of what the energy data suggests, how that relates to the building, and which actions should be prioritised.
- Clearer understanding of hidden waste
- Evidence to support facilities team concerns
- Practical recommendations for schedules, controls and plant
- Support for contractor and management discussions
- A focused route to reducing avoidable energy use
This is useful if
You know energy costs are high but are not sure where the waste is
- Your facilities team is busy with day-to-day building issues
- You need clearer evidence before asking for action or investment
- You have high energy use but no obvious single cause
- You suspect controls, schedules or plant may be contributing to waste
- You want facilities, finance and management to work from the same evidence
Common questions
Questions organisations often ask about facilities teams and energy waste
Should facilities teams already know where energy is being wasted?
Not necessarily. Facilities teams may know the building well, but hidden energy waste often needs data review, technical diagnosis and time to investigate properly.
Is an energy audit a criticism of the facilities team?
No. A good audit should support the facilities team by providing evidence, priorities and independent diagnosis that can help them make the case for action.
Why is energy waste hard to spot?
It may be hidden in night-load, old schedules, control settings, overrides, plant operation, out-of-hours use or systems that have become normal over time.
Is the free 30-minute discussion useful before booking?
Yes. It is a practical conversation about your building, your facilities concerns, your data, and whether a fixed-fee audit would help identify hidden waste.
Free 30-minute discussion
Need support identifying where energy is being wasted?
Start with a practical conversation. Oxford Energy Services can help connect energy data, facilities knowledge and building operation so that hidden waste becomes clearer and easier to act on.
Contact Russell
Email:
russ@oxfordenergyservices.co.uk
Phone:
+44 (0)7803 397 549