For facilities, workplace, estates & operations teams
Energy Efficiency for Workplaces & Business Premises
Find the waste. Understand the cause. Prioritise what happens next.
Clear answers on where your building is wasting energy — and what to do about it.
Independent building energy audits and practical energy management support for offices, headquarters and occupied business premises.
OES helps organisations understand what their buildings are actually doing, identify avoidable waste and turn energy data into practical action.
The workplace energy problem
Energy waste often sits between systems, people and responsibilities
A building can look normal while energy is being lost through schedules, controls, plant operation, occupancy patterns and decisions made over many years.
Bills, half-hourly data and consumption patterns
Plant, controls, schedules and actual occupancy
Practical building diagnosis
Data · Site investigation · Technical judgement
Where energy appears to be lost
What should be fixed or investigated first
Managing a real building
You are responsible for the workplace — but energy is only one part of the job
For many facilities, workplace and operations teams, energy sits alongside occupant comfort, maintenance, contractors, compliance, budgets, refurbishments and the daily reality of keeping a building running.
You may know the building extremely well and still not have the time, specialist data analysis or independent technical support needed to investigate its energy performance properly.
Energy waste often sits between data, controls, plant operation, occupancy, maintenance and decisions made over many years.
Does any of this sound familiar?
Common workplace energy headaches
The problem is often not a lack of data or effort. It is connecting the evidence with how the building actually behaves.
The energy bill has gone up, but we cannot clearly explain why
Bills show cost. They do not always show the operational cause.
The BMS says everything is scheduled correctly
A schedule on a screen does not prove that plant, sensors, overrides and controls are behaving as expected.
We have half-hourly data, but nobody has time to analyse it properly
Data can expose night load and unusual patterns, but only when interpreted in context.
The building still uses energy when hardly anyone is there
Evenings, weekends and low-occupancy periods can expose unnecessary baseload and plant operation.
We have a list of projects, but do not know what to prioritise
Solar PV, LED lighting, controls and replacement plant can all sound sensible. The question is what your building actually needs.
A contractor has proposed a solution and quoted the savings
The proposal may be worthwhile, but assumptions should be independently sense-checked before budget is committed.
Senior management wants progress on energy or carbon
You need a credible baseline, practical priorities and a route from discussion to action.
Everyone owns a piece of the problem, but nobody owns the whole picture
Energy performance often crosses facilities, finance, sustainability, landlords and contractors.
Start with evidence
Understand what the building is actually doing
OES combines data, site investigation and experienced technical judgement to move from a vague energy problem to clearer priorities.
Energy data
Electricity and gas use, half-hourly patterns, baseload and unusual changes.
Site investigation
How the building, plant, controls and occupied spaces operate in practice.
Technical understanding
Heating, cooling, ventilation, lighting, controls, hot water and fabric.
Independent judgement
A clear view of what appears worthwhile without selling equipment or installation.
Practical priorities
What to fix now, investigate next and consider for future investment.
Choose the right level of support
Three practical ways OES can help
Some organisations need a clear diagnosis. Others need ongoing expertise or help with a particular building problem.
Best starting point
Building Energy Audit
A practical fixed-fee review for organisations that need to know where energy is being wasted and what should be fixed first.
- Energy data review
- Site visit and walkthrough
- Night load and out-of-hours use
- Heating, cooling and ventilation
- Lighting, BMS and controls
- Practical recommendations
Ongoing support
Energy Management Support
Practical energy expertise without employing a full-time energy manager.
- Energy data review
- Night-load checks
- Energy baseline development
- Carbon audit report
- Opportunities register
- Contractor proposal review
- Action planning
Focused advice
A Specific Building Problem
When you already know the question but need an experienced independent technical view.
- Unexplained energy use
- Unusual night load
- Contractor proposals
- Heating or controls concerns
- Solar PV proposals
- Decarbonisation decisions
Before you spend money
Better energy decisions start with diagnosis
Energy projects should not begin with a preferred technology. They should begin with understanding the building.
Oxford Energy Services is independent. The focus is on identifying what appears to be happening, what matters most and what is genuinely worth doing next.
Explore Building Energy AuditsPractical insight for facilities & operations teams
Challenge the assumptions that allow energy waste to become normal
Energy problems are not always dramatic. Often they sit inside familiar assumptions nobody has had reason to question.
Facilities teams should already know where the waste is
Why the causes of energy waste can sit between teams, systems and responsibilities.
Read the Myth BusterEnergy waste is obvious
Why avoidable consumption can hide in schedules, controls and operating patterns.
Read the Myth BusterContractor savings estimates are always reliable
Why assumptions and payback calculations should sometimes be challenged.
Read the Myth BusterEnergy management is a one-off project
Why findings, data, actions and proposals need continued review.
Read the Myth BusterCarbon reduction starts with a carbon plan
Why building evidence can make carbon planning more practical.
Read the Myth BusterEnergy audits are just long reports
Why a useful audit should make the next decisions clearer.
Read the Myth BusterBuilt for people managing real buildings
Who this support is for
People responsible for performance
Workplaces and business premises
Why Oxford Energy Services
Experienced technical judgement, not generic sustainability consultancy
Oxford Energy Services is led by Dr Russell Layberry, a PhD physicist and Certified Energy Manager with more than 20 years’ experience across building energy, carbon and sustainability.
OES does not sell boilers, lighting, solar panels, controls systems or installation projects. The advice is independent.
Free 30-minute discussion
Not sure where to start?
You may simply know that energy use looks too high, costs are difficult to explain, a contractor has proposed a project, or senior management wants a clearer plan.
Start with a practical conversation about the building, the available evidence and what would help clarify the next step.
Talk to Russell
Email:
russ@oxfordenergyservices.co.uk
Phone:
+44 (0)7803 397 549