Initial situation: high costs and dependence on diesel oil
The Carns Banyoles facilities, dedicated to the meat and food processing industry, have a surface area of 1,500 m² and a high demand for domestic hot water (DHW) for cleaning and processes, as well as air conditioning in offices and handling areas.
Until 2023, the company used oil-fired boilers as its main source of energy, which resulted in an annual cost of €18,000 and a considerable environmental impact.
The challenge was clear: to find a more efficient, sustainable energy system with lower maintenance costs.
The study: industrial aerothermal energy as an alternative to diesel oil
After a detailed analysis of consumption and thermal needs, a high-capacity industrial air-water aerothermal system was designed, capable of simultaneously meeting the needs of the plant:
- ACS for cleaning and production processes.
- Air conditioning of offices and work areas, ensuring stable comfort for personnel.
In addition, large-capacity storage tanks were dimensioned to ensure the continuous availability of hot water at times of peak demand, which is essential in the food industry.
Installation: power and reliability in 8 days
In a little more than a week, the installation was executed with the following elements:
- Carrier 40 kW industrial aerothermal system, designed for high energy consumption applications.
- 3 DHW accumulators of 500 liters, capable of guaranteeing a stable supply all day long.
- Ducted air conditioning system in offices and administrative areas, improving working comfort.
- Progressive removal of the old oil-fired boilers, reducing the space occupied in the technical room.
Project data:
- Duration of installation: 8 days
- Total investment: 56,000 €.
- Industrial subsidy applied: 15,000 €.
Real results: savings and sustainability for the company
After the first year of operation, the results have been outstanding:
- 70% reduction in energy costs, from €18,000 to €5,400/year.
- Lower maintenance compared to oil-fired boilers, which also reduces operating costs.
- Reduction of 22 tons of CO₂/year, improving the company’s carbon footprint.
- Greater temperature stability in the handling areas, favoring both production and personnel working conditions.
Additional benefits
- Return on investment in less than 3 years, thanks to the energy savings and the subsidy received.
- Improved corporate image and brand reputation, aligned with sustainability criteria.
- Adaptation to energy efficiency regulations and policies in the agri-food sector.
- Increased safety by eliminating the use of fossil fuels in the facilities.
Real testimony
“We have improved working comfort and drastically reduced costs. Aerothermics has been a key investment for our competitiveness.”
– Jordi Soler, manager of Carns Banyoles
Summary of the case in figures
| Data | Result |
|---|---|
| Type of installation | Industrial Aerothermics |
| Aerothermal power | 40 kW |
| Previous consumption | 18,000 €/year |
| Actual savings | 12,600 €/year |
| Investment | 56.000 € |
| Subsidy applied | 15.000 € |
| Amortization | 3 years |
| CO₂ avoided | 22 t/year |
Do you want to improve the energy efficiency of your company in Girona? Ask for a free study and find out how the industrial aerothermal installation can help you reduce costs and emissions.