42-46 rue André Boulle, 41000 Blois, France Mon–Fri 8:00–12:30 / 14:00–18:00 · Sat 8:00–12:30 +33 2 54 55 73 73 FREN

Energy savings

Recover the heat from your compressors and get your work funded

A compressor turns almost all the electricity it uses into heat. We recover it to heat your buildings or water, and we handle the CEE grant application.

Why recover the heat?

A screw compressor turns 100% of the electrical energy it uses into heat. About 4% stays in the compressed air and 2% is lost through radiation: nearly 94% of that energy can be reused.

Over the life cycle of a compressed air station, energy is the largest share of the total cost, at least 70% even on an optimised installation. Recovering the heat reduces operating costs and CO2 emissions.

94%of the energy used by a screw compressor can be recovered
Animation: a screw compressor takes in 100% electricity; 4% stays in the compressed air, 2% is lost through radiation and 94% can be recovered for space heating and hot water up to 70–90 °C.
Chart of compressed air consumption over 24 hours at a customer site: off overnight, two fixed-speed compressors taking turns at 2.2 m³/min, a variable-speed compressor following demand up to about 8 m³/min, pressure steady around 8.2 bar.
24-hour recording at a customer site: the fixed-speed compressors cover the base load, the variable-speed compressor absorbs the peaks.

We measure before we propose

Since 1998, we have recorded our customers' air consumption over several days. The recording shows peaks, troughs and leaks, so we can size the solution precisely: variable speed compressor, multi-compressor control, heat recovery.

Two ways to recover heat

Hot air recovery

Hot air from the compressor is ducted to your buildings to heat them.

Hot water recovery

Plate or safety heat exchangers produce water up to 70 °C, or even 90 °C: heating, washrooms, cleaning, industrial processes, food industry.

The CEE grant

Energy-saving certificates (CEE) are a French scheme under which energy suppliers fund work that reduces consumption. Several compressed air measures may qualify:

  • Hot air or hot water heat recovery on compressors
  • Control cabinet to manage several compressors
  • Variable speed compressor
  • More efficient air dryers

We support you from start to finish

  1. Analysis of your installation and consumption
  2. Eligibility check
  3. Preparation and follow-up of the CEE application
  4. Installation and commissioning

Sales department: +33 2 54 55 73 73

Is your site eligible for the CEE grant?

We will analyse your installation and tell you.

Call BSAI