An energy-efficient facility uses the energy it needs to operate safely, comfortably, and reliably, with as little avoidable waste as possible.
The best way to assess energy efficiency across a facility is to have an energy management plan supported by an energy management system (EnMS). This should include key performance indicators (KPIs) and energy performance indicators (EnPIs) to track energy efficiency and operational parameters across the facility.
What are the signs that a facility is energy efficient?
A well-performing built environment should give facilities teams a clear picture of where energy is being used.
Some of the key indicators include:
- Energy consumption monitoring and tracking
- Building systems operate according to occupancy and weather changes.
- Heating, ventilation, and air conditioning (HVAC) systems maintain comfortable temperatures efficiently according to standards and guidelines.
- Equipment is maintained and operating within expected performance levels.
- Energy trends based on a predictable manner
- Unusual changes in consumption are identified, investigated, and resolved.
- Maintenance, energy, and asset performance data inform operational decisions.
- Energy-saving improvements are measured to establish whether they have delivered the expected results.
If that information isn’t readily available, establishing a reliable energy baseline is a sensible place to begin.
Start with your energy consumption
Review at least the previous 48 months of energy consumption to understand how the facility’s usage changes from month to month and throughout the year. Compare the same periods year on year and investigate any significant variations. For example, if consumption has changed by 5% or more, identify what may have changed operationally during that period.
It is also important to consider independent variables that may affect energy use, such as occupancy and weather conditions. Analyze their impact on consumption and use this information to model expected energy performance.
Identify the Significant Energy Use for the facility.
Significant Energy Use (SEUs) is a term used to identify high-energy impact parts of the facility. For instance, HVAC usually accounts for 40 to 60% of the total facility consumption. Don’t leave it as HVAC; it should be minimized to chillers, chilled water pumps, FCUs, etc. This helps identify ECMs for the future and understand where the shortcomings are in the operating system. Cooling performance is influenced by a wide range of factors, including:
- operating schedules
- temperature set points
- equipment condition
- chilled-water systems
- controls and sensors
- occupancy
- maintenance
- The interaction between different facility systems
Small inefficiencies become significant when they are repeated across large systems and long operating hours.
Across its regional projects, ENGIE Solutions has recorded energy reductions of up to 32 percent through no-cost and low-cost measures, including ensuring equipment operates as designed and optimizing run times.
Before a major investment is considered, it is worth establishing how efficiently existing systems are performing.
Is the equipment running when it doesn’t need to?
Working hours change. Tenants move. Occupancy fluctuates. Spaces are repurposed.
Facility operating schedules don’t always change with them.
Cooling, lighting, pumps, and other equipment may continue to run according to settings established years earlier, including during periods when parts of the facility are empty.
Over time, those extra operating hours add up.
Looking at when equipment starts, stops, and reaches peak demand can reveal opportunities to reduce consumption while maintaining the comfort and reliability people expect from the facility.
Are your facility systems working together efficiently?
Cooling, ventilation, lighting, utilities, controls, occupancy, and maintenance all influence a facility’s energy performance.
Looking across these systems together can reveal connections that are easy to miss when each is monitored in isolation. A cooling issue, for example, may have its roots in controls, occupancy patterns, maintenance, or the way another part of the facility is operating.
ENGIE Solutions uses Smart O&M to bring asset, operational, and energy information together across its UAE operations. The platform manages more than 250,000 maintainable assets and over 500 utility meters across more than 150 sites.
Once that information sits in one place, patterns become easier to spot. An asset consuming more energy than expected, equipment running outside occupied hours or a gradual change in cooling performance can be investigated before it develops into a more expensive problem.
Does poor maintenance increase energy consumption?
Yes.
Equipment efficiency can decline gradually, long before a failure occurs.
Dirty components, deteriorating equipment, inaccurate sensors, and poorly performing controls can increase the amount of energy needed to achieve the same result. The change may happen gradually, which makes it easy to miss during day-to-day operations.
Frequent faults, recurring comfort complaints, and declining equipment performance all deserve closer attention. Looking at maintenance and energy data together can help identify where an asset is becoming less efficient and whether servicing, optimization, or replacement is the most appropriate response.
Maintenance is the easiest and fastest energy-saving strategy assigned and agreed upon in every energy-saving guideline.
How can I compare the energy efficiency of my facility?
Energy consumption needs to be considered alongside the facility size, occupancy, operating hours, climate, equipment, and purpose.
A hotel operating around the clock will have a very different energy profile from an office occupied during standard working hours. Data centers and other critical facilities have different requirements again.
Historic performance is also valuable. If the facility is using more energy to provide broadly the same level of service it did a year ago, there is a reason for that change.
Comparisons across a property portfolio can reveal more. If two similar facilities are performing very differently, the stronger-performing site can provide clues about what needs to change elsewhere.
What does an energy audit tell you?
When the data suggests there is room for improvement, an energy audit provides a deeper assessment of where energy is being consumed and what is driving that demand.
The audit can examine consumption data alongside major facility systems and identify opportunities across operations, maintenance, and equipment.
Those opportunities can then be assessed according to expected savings, implementation cost, payback, operational impact, and asset condition. This gives decision-makers a clearer basis for deciding what should happen first and where investment is justified.
How do I know where to start?
If you’re trying to understand the energy performance of a facility, start with five questions:
- How much energy are we using?
- When are we using it?
- Which systems account for the greatest demand?
- Are those systems performing as expected?
- Are the parameters set correctly?
- Is my system commissioned?
- Can we measure whether the changes we make improve performance?
The answers will begin to show where energy is being wasted and where further investigation is needed.
For some facilities, the first opportunities may sit in operating hours or controls. Others may have aging equipment, maintenance issues, or cooling systems that need closer attention. Across larger portfolios, the priority may be gaining consistent visibility across sites before individual interventions are planned.
The aim is to understand what the facility is telling you through its energy, asset, and operational data, then use that information to make better decisions about what happens next.
Understand how your facility is performing
ENGIE Solutions works with organizations across the Middle East to assess and improve the energy performance of facility, infrastructure, and property portfolios.
Our teams bring together energy audits, operational optimization, Smart O&M, energy efficiency projects, and performance-based solutions to identify opportunities to reduce consumption, improve asset performance, and control operating costs. These capabilities reflect the services and energy-management approach set out in ENGIE Solutions’ existing material.
If you’d like to understand how efficiently your building is performing, ENGIE Solutions can help you assess current energy use, identify areas of waste, and prioritize the improvements with the strongest operational and financial case.
Talk to our team
SEO & Publishing Details
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Building energy efficiency
SEO title
How Do I Know If My Building Is Energy Efficient? | ENGIE Solutions
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How do I know if my building is energy efficient?
Meta description
Learn how to assess your building’s energy efficiency, identify signs of wasted energy, and understand where improvements could reduce consumption and costs.
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Article excerpt/summary
How energy efficient is your building? From rising consumption and cooling performance to operating schedules and maintenance, discover the signs to look for and where to start.
Featured image recommendation
Use a photograph of a modern commercial or mixed-use building in the Middle East, ideally an ENGIE-managed asset where permissions allow.
Alternatively, use high-quality ENGIE photography showing HVAC, plantroom, or building operations. The image should reflect real building performance and energy management.
Avoid generic sustainability imagery such as leaves overlaid on buildings, hands holding light bulbs, wind turbines, or generic green-energy stock photography.
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Commercial building monitored for energy efficiency in the Middle East
Internal linking recommendations
Where relevant, add contextual internal links to:
- Energy Efficiency
- Smart O&M
- Integrated Facilities Management
- A relevant energy-efficiency case study
Future Be the Answer articles covering energy, cooling, maintenance, and building performance should also link back to this article where relevant.
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Use the Article schema as the primary structured data.
Include:
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