Energy Efficiency and Retrofit Projects
Measurement based analysis of the existing installation, improvement proposals and implementation prioritised by payback period.
Savings cannot be made where nothing is measured. In the audit we first map the energy use of the facility, then present a list of proposals ranked by payback period.
Our report does not merely propose improvements; for each proposal it sets out the investment amount, the annual gain and the payback period separately. You decide which item is carried out this year and which one next year.
The largest gain usually comes not from new equipment but from correct control and correct operation. Correcting operating hours, reviewing set points and enabling free cooling produce gains without investment in most facilities.
After implementation we take a second measurement to verify the gain. An unverified savings claim remains a claim.
Kapsam
- Energy consumption analysis and site measurements
- Assessment of the current efficiency of the equipment
- Control strategy and set point optimisation
- Equipment renewal and retrofit works
- Addition of heat recovery and free cooling
- Conversion to variable flow pumps and fans
- Report prioritised by payback period
- Verification measurement after implementation
How we work
Preliminary review
The billing history and the inventory of the existing systems are examined.
Site measurement
Consumption, flow rate and temperature measurements are taken at main and sub points.
Analysis
The loss items are identified and the proposals are ranked by payback.
Implementation
The selected items are put into operation.
Verification
A second measurement reports the gain on a comparative basis.
Common questions
Is the audit chargeable?
Yes, it is priced according to the scope and the size of the facility. If you award us the implementation afterwards, the audit fee is deducted from the contract.
Is saving possible without investment?
In most facilities it is. Correcting operating hours, set points and control scenarios usually produces measurable gains within the first months. We place these items at the beginning of the report.
Should an old chiller be replaced or overhauled?
The age of the unit, its current efficiency, spare part availability and the status of the refrigerant it uses are assessed together. In some cases improvements on the control and pump side pay back faster than replacing the machine.
