Commercial Building Energy Audits: Steps, Benefits, and Electrical Efficiency
Ever wonder why a building’s power bill keeps climbing when tenant numbers and operating hours barely move? In commercial properties, electricity is among the largest recurring expenses, and the waste behind it often hides inside equipment that looks perfectly fine.
An energy audit helps trace it. Facility teams get a clear picture of which parts of the building draw too much power and which fixes deserve attention first.
Understanding Energy Audits and Electrical Energy Audits
An energy audit is a structured investigation into how a building consumes energy. It produces findings and proposed fixes that can be scheduled, without sacrificing occupant comfort.
The two types differ in scope. A general energy audit covers every energy source, including generator diesel and gas. An electrical energy audit looks only at the power side: main panels, individual equipment loads, and power quality. Since electricity is typically the biggest energy source in commercial buildings, it is the most common choice.
In Indonesia, SNI 6196 is the technical reference. Backed by measured data, building teams can optimize energy use with purpose instead of guesswork.
Why Does Commercial Building Energy Auditing Matter?
Commercial building energy auditing brings four practical benefits:
- Spots wasteful energy use. One example is a chiller running at full output while building load is low.
- Keeps electricity costs under control. Repair budgets go where waste has been proven.
- Supports sustainability goals and lower emissions. According to the IEA, buildings take up a large part of the world’s energy and add a significant amount to emissions.
- Improves operational performance. Room temperatures stay steadier and equipment lasts longer when it runs according to need.
On the regulatory side, Government Regulation No. 33 of 2023 on energy conservation sets energy management duties for users above certain thresholds. Confirm what applies to your building.
How an Electrical Energy Audit Is Carried Out
Providers use their own methods, but the sequence usually runs like this:
- Gather billing and consumption records. Twelve months is enough to show trends and seasonal effects.
- Examine the electrical installation and equipment. Auditors note the type, capacity, and condition of each item.
- Measure consumption in the main systems. Power meters are placed on key loads for a set period.
- Analyze the data for signs of waste. Measured values are compared with how the equipment should be running.
- Draft recommendations for improvement and efficiency. Each proposal is ranked by impact, cost, and ease of implementation.
Parts of the Building to Inspect
- HVAC and cooling. In tropical countries, cooling often takes the largest share of power.
- Lighting and electrical equipment. Check lamp types, on-off schedules, and workstation loads.
- Elevators, pumps, and support systems. Aging motors or poor operating patterns can push consumption up.
- Building Management System (BMS). Schedules and setpoints that are never reviewed are a common source of waste.
- Usage during and after working hours. If load stays high past midnight, some equipment probably does not need to be running.
Technology That Supports Building Energy Efficiency
An audit report captures only one period. To keep savings in place, track consumption on an ongoing basis with:
- Smart meters and energy sensors that read usage per panel or per floor.
- Live power monitoring so load spikes show up quickly.
- BMS integration that merges meter readings and equipment status into a single dashboard.
- Data processing that catches unusual consumption patterns and guides the next fix.
FAQ
At what point should a commercial property schedule an energy audit?
For example, when bills rise for no clear reason, before a renovation or major equipment swap, or on a recurring schedule set by internal policy or regulation.
How does an energy audit differ from energy monitoring?
An audit examines a building over a set window and ends with a list of proposed fixes. Monitoring runs without a break and shows how consumption shifts from day to day.
How can you tell whether an efficiency program is working?
Compare consumption before and after the improvements, such as kWh and energy intensity per square meter. Adjust for weather and occupancy so the comparison is fair.
Can audit findings be used to set investment priorities?
Yes. Reports usually include estimated savings and costs for each recommendation, so owners can start with the most worthwhile ones. The figures remain estimates and should be verified.
What role does building automation play in acting on audit findings?
Automation runs recommendations such as HVAC schedules, lighting control, and night-time load limits consistently, without relying on manual settings.
An electrical energy audit helps building managers understand consumption patterns, find waste, and choose the right efficiency steps. The effect is strongest when followed by monitoring and automation.
With monitoring and automation, Ferbos can support more measurable and efficient building energy management. Contact the Ferbos team to discuss your building’s needs.
