How do you save money through energy efficiency?

Energy costs represents about 70% of the total operating costs for your compressor over a 5-year period. Therefore, it is important to reduce the costs of your compressor installation.

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5 tips to save energy on your compressed air installation

When installing your compressor installation, there are several things that you need to take into account. As a starting point, it is important to focus on the dimensioning of the compressor. Neither an oversized nor an undersized compressor solution will be profitable in the long run, which is why it is important that the compressor has the right pressure.

Below we have put together some tips on how you can save on energy costs while taking the environment into account.

1. The right pressure!

Each bar's excess pressure costs 7% in energy costs. You can therefore avoid pressure drops by correctly installing the compressor installation.

With frequency-controlled screw compressors, there is an adjustable operating pressure between 4 and 13 bar, thus reducing the size of the compressor. The operating pressure can be adjusted on the screw compressor's central control unit and save you up to 15% in energy costs.

2. Savings through heat recovery

During the compression of air in the compressed air system, a lot of heat is generated. By effectively reusing this heat produced by your compressor, you can save a lot of money.

Recover 75% of the compressor's power through heat dissipation.

3. Prevent and repair leaks

A compressed air leak can quickly cost you a lot of money per year. The higher the pressure, the higher the air loss and the higher your costs.

By replacing old filters and refrigeration dryers, you reduce the pressure loss through air aftertreatment. In addition, old piping and knob shooting can be responsible for many leaks and pressure losses.

RENO offers leak detection and calculation of pressure loss over pipelines.

4. Installation of a frequency-regulated compressor rather than load/unload

To avoid oversizing your compressor or that it runs at the wrong pressure, a frequency-controlled compressor can be installed instead of a fixed speed compressor.

With a frequency-controlled compressor, an average energy reduction of 35% is achieved and creates a stable pressure.

5. Maintain compressor properly

Using original parts manufactured for the specific application in your compressor ensures correct operation and maximum energy efficiency. In this way, you ensure correct maintenance of the compressed air installation and you avoid energy loss. A compressor that works properly is the most economically efficient.

Example on potential savings through heat recovery

Potential savings through heat recovery (based on kr/kW)
Compressor size kW/yearly operating hours 2000 hours 4000 hours 6000 hours 8000 hours
7,5 11.250,00 kr. 22.500,00 kr. 33.750,00 kr. 45.000,00 kr.

Read more about compressors here