Most energy audit reports list twenty measures and leave the client to work out which three are worth doing. An audit is only useful if it tells you where to spend first, and why.
ESGweise carries out energy audits to ISO 50002-1:2025 and EN 16247 for buildings, industrial sites and facilities across the UAE and wider GCC. The ESGweise delivery team, made up of certified experts, establishes a metered baseline, identifies significant energy uses, and costs each improvement measure with its savings and payback, at walk-through, detailed or investment-grade depth.
Three levels, chosen by the decision
Audit depth should match the decision it supports. A board screening a portfolio does not need investment-grade analysis. A facilities team about to sign a retrofit contract does.
- Level 1, walk-through: obvious savings and no-cost operational fixes, plus a view on whether deeper work is worth it
- Level 2, detailed: energy balance by end use, significant energy uses identified, measures costed with savings and payback
- Level 3, investment-grade: measured data and engineering analysis strong enough to support a capital decision or an energy performance contract
Audits are carried out to ISO 50002-1:2025, the current international standard, or to EN 16247 where your regulator, lender or group policy names it. Audit levels follow ASHRAE Standard 211. Where savings will later be verified, we plan for measurement and verification under IPMVP from the start, so the baseline still holds up when it comes to proving the savings.
In the Gulf, start with cooling
In most Gulf buildings cooling is the largest single electricity load, and the one with the widest gap between design and actual performance. An energy audit here that does not measure the chiller plant properly has missed the main finding. Where cooling dominates, we pair the energy audit with a dedicated chiller and district cooling audit.
- Cooling: chiller plant, pumps, cooling towers, air handling and setpoints
- Lighting and controls: schedules, occupancy, and building management system logic that has drifted since commissioning
- Process and compressed air: leaks, pressure settings, motors and drives on industrial sites
- Fleet and on-site generation: where transport or diesel generation is a material share of energy use
From meter data to a ranked plan
Baseline
Utility bills, sub-meters and building management system trends, normalised for weather and occupancy so later savings can be told apart from a cooler year.
Site survey and logging
Equipment inventory, spot measurements, and temporary loggers wherever sub-metering is missing, covering a representative operating period.
Measures costed
Each measure with its energy and cost saving, capital cost, simple payback and emissions reduction, grouped into no-cost, low-cost and capital.
A plan someone can act on
A short ranked list with owners, rather than a long report. Scope 1 and 2 reductions are stated in the form your GHG inventory and sustainability report will use.
Related: ISO 50001 implementation turns a one-off audit into a continuing energy management system, and carbon puts the savings into a net-zero roadmap.
Working in Abu Dhabi? Read what Abu Dhabi mandates instead of energy audits, how savings are proven under the M&V Protocol and the Abu Dhabi environmental compliance guide.
Energy Audits: questions we hear most
What is an energy audit?
A structured review of how a site uses energy, which identifies where it is wasted and what it would cost to fix. A proper audit establishes a baseline from metered data, finds the significant energy uses, and gives a set of improvement measures, each with estimated savings, cost and payback. The current international standard is ISO 50002-1:2025, with EN 16247-1:2022 as its European counterpart.
Which standard should an energy audit follow: ISO 50002 or EN 16247?
ISO 50002:2014 was withdrawn in 2025 and replaced by a series: ISO 50002-1:2025 sets the general requirements for an energy audit, and ISO 50002-2:2025 gives guidance for applying it to buildings. ISO built the revision from ISO 50002:2014 and EN 16247-1:2022 together, so the two lines that used to run in parallel have converged. ISO 50002-1 is written to work on its own or inside an ISO 50001 energy management system. EN 16247 remains the European series, and where a regulator, lender or group policy names it, we work to it.
What are Level 1, 2 and 3 energy audits?
The levels come from ANSI/ASHRAE/ACCA Standard 211-2018, reaffirmed in 2023, which replaced ASHRAE's older audit procedures guide and is written in language a regulator can adopt into law. Level 1 is a walk-through that finds obvious savings and screens whether deeper work is worthwhile. Level 2 is a detailed survey with an energy balance and costed measures, with projected savings checked as a share of baseline energy use so they are not overstated. Level 3 is an investment-grade audit, with enough measurement and engineering analysis to support a capital decision or an energy performance contract.
How long does an energy audit take?
A walk-through of a single building can be done in a few days. A detailed audit of a large building or industrial site usually takes several weeks, most of it spent on data collection and short-term metering rather than on the site visit itself. The biggest driver is how much of the site is sub-metered. Where it is not, temporary logging has to cover a representative operating period before the analysis means anything.
Tell us the site and send the bills.
Floor area or production volume, twelve months of utility bills, and whether you need a walk-through, detailed or investment-grade audit. We set the scope and the fee from that.