In industry, the saving per application is far larger than in residential: equipment runs thousands of hours a year and capacities are high. This guide ranks industrial measure families by certifiable potential and details the data needed to calculate the saving credibly.
The variable that decides everything: operating hours
A certifiable saving is essentially a consumption difference multiplied by operating time. Equipment running 6,000 hours a year generates a saving several times larger than the same equipment at 1,200 hours.
That is why, in a three-shift plant, measures on continuous process equipment almost always outweigh envelope or lighting measures in value.
3 sectors
Residential, tertiary and industrial
1 kWh
Final energy saved per certificate
h/year
Heaviest variable in industrial calculations
CAE framework references; they do not anticipate the outcome of any specific application.
Measure families by potential
Ranked by how often they lead to applications of meaningful volume.
This ranking is not an absolute hierarchy: in a given plant, the most profitable measure depends on the load profile and the real operating regime.
| Measure | Potential | Data needed |
|---|---|---|
| Variable speed drives on pumps and fans | High | Motor power, load profile, annual hours. |
| High-efficiency motors (IE4/IE5) | High | Power, efficiency before and after, annual hours. |
| Compressed air: leaks, control, recovery | High | Flow, working pressure, hours, specific consumption. |
| Waste heat recovery | High | Temperatures, flows, end use of recovered heat. |
| Industrial refrigeration and floating condensation | Medium-high | Cooling capacity, temperature setpoints, hours. |
| Insulation of pipes, valves and tanks | Medium | Length, diameter, fluid temperature, hours. |
| LED lighting in industrial halls | Medium | Installed power before and after, hours, controls. |
How an industrial application is prepared
In industry, the quality of the input data determines the outcome. A saving well documented with real measurements holds up in verification; an unsupported estimate does not.
Where the plant already has an energy audit or an ISO 50001 management system, much of this information exists and the application moves far faster.
- Inventory of affected equipment. Capacities, models and location before and after the measure.
- Justified operating hours. Shifts, production calendar or control-system records.
- Metering or consumption history. Where meters or historical data exist, they strengthen the application considerably.
- Simultaneous process changes. If production changed at the same time, the effect of the energy improvement must be isolated.
Frequently asked questions
- Can a process improvement be certified without a standardised sheet?
- Yes, through the singular-project route, with its own calculation methodology and a higher level of technical justification.
- What if the plant increased output?
- The calculation must be normalised so the attributed saving reflects the energy improvement, not the change in activity.
- Is there a minimum plant size?
- Not by size, but by saving: the system sets minimum thresholds and several measures can be aggregated into one application.
From plant to application
In an industrial plant, the most efficient route starts from the existing energy inventory: consumption per line, main equipment and operating hours. That quickly identifies the two or three measures with the largest certifiable saving.
Then decide what goes through a standardised sheet and what requires the singular-project route, and aggregate measures to file one solid application instead of several small ones.
Next step for industry
Send us the equipment list and estimated operating hours. We flag which measures generate CAE and what data is still missing for the calculation.
From plant data to recognised saving
In industry, most blockers come not from the calculation but from data quality. A nameplate rating does not describe real consumption if the motor runs at 60% load for most of the shift. Wherever control-system logs or power-analyser records exist, we use them as the basis.
Load profile is decisive on pumps and fans. That is where variable speed drives deliver the most saving, and also where an optimistic estimate shows up soonest: if the equipment runs at full load almost all the time, the real saving is small, whatever a theoretical calculation suggests.
In compressed air, savings spread across three fronts best assessed together: leak reduction, working-pressure adjustment and compressor sequencing control. Treating them separately usually leaves out part of the saving the application could recognise.
Waste heat recovery needs more characterisation than other measures — temperatures, flows and above all a stable end use for the recovered heat — but where the plant has its own thermal demand, it is the family with the highest saving per euro invested.
Finally, aggregating measures is the most underrated lever in industry. Several measures from the same owner filed in one application lower the relative documentary burden, make the minimum saving threshold easier to reach and give the verification calendar a cleaner shape.
Before calculating anything, we check whether the plant has a recent energy audit, an ISO 50001 system or metering history per line. Where any of the three exists, the work reduces to organising the information and confirming data for the replaced equipment.
We also look at the industrial calendar. Carrying out the measure during a planned shutdown makes the photographic record and pre-works data capture easier — two elements that later prove decisive in justifying the baseline to the verifier.
Aggregation also changes how the project is planned internally. When maintenance, production and finance know from the start which measures will be filed together, the data capture is scheduled once instead of three times, and the evidence arrives complete.
As a rule of thumb, the measures worth assessing first are those on equipment that runs continuously, has high installed capacity and is already scheduled for replacement. That combination is where certified savings most often turn a marginal business case into an approved one.