Go to content

Restaurant : Centralisation of cold production units with a variable speed compressor in a restaurant

Energy
Commerce
Craft Industry
[ Detailed version of the measure ]
Last update: 18/03/2026
  • Possibilité d’accompagnement
  • Subvention disponible
  • Solutions innovantes

To make this measure more effective and tailored to the specific context of your company, we recommend that you first perform an overall analysis of your energy situation.

Replacement and centralisation of cold production units with a variable speed compressor

In a restaurant, the cold room’s refrigeration cycle is often subject to variations in operation.

The air evaporator is influenced by the climate of the room it cools (opening and closing of doors, loading of food, etc.) while the condenser also depends on the climate through the outside temperature.

The project consists in replacing small production units supplying cold rooms with a main, centralised cold production unit, controlled with a frequency variation on the refrigeration compressor motor.

By installing this technology, which has been available on the market for more than 5 years, the company can save up to 15% on its electricity bills and reduce its carbon footprint. However, implementing this measure can be complex and requires the temporary shutdown of production during the technical installation stage. But the return on investment will be fast thanks to the savings achieved.

Energy and environmental impact

The new centralised refrigeration unit will result in energy savings on two levels:

  • improved refrigeration efficiency
  • improved control due to speed variation

State subsidy application

State subsidies

Please note: any application for government or non-government subsidies must comply with the “incentive effect”, subject to compliance with the subsidy conditions.
To ensure that the ‘incentive effect’ is respected, no binding commitment (signing a quotation; paying an advance) may be made BEFORE submitting the application file or receiving the agreement in principle from the State or the electricity and natural gas supplier following an application for subsidies.

SME Packages – Sustainability

  • Financial Aid for small and medium-sized enterprises covering up to 70% of eligible costs for the implementation of a project aimed at reducing the environmental impact. The eligible project budget must be in a range from 3.000 € to 25.000 € excl. VAT.
  • For more information:

Aid for environmental protection

The law of 8 December 2025 on the renewal of the aid scheme for environmental and climate protection provides for the granting of investment aid to SMEs and large companies established in Luxembourg, with a business licence, and carrying out projects that contribute to environmental or climate protection.
This aid supports investments aimed at improving energy efficiency outside buildings. It is intended for initiatives that either reduce energy consumption by at least 20% or achieve energy savings of at least 250 MWh per year.

The following maximum rates apply:

ActivityCompany size
SmallMediumLarge
Energy efficiency outside buildings25 %20 %15 %
Maximum rates for aid under Article 7

When equipment is added to an existing installation and there is no counterfactual investment that is less environmentally friendly, the aid rate shown in the table above is doubled.
SMEs may receive aid upon request if they meet the conditions set out in Article 7 of this law, provided that the aid is less than €100,000 and more than €50,000.
Large enterprises, as well as SMEs, will also be able to participate in regular calls for projects, which will be announced below when they become available.
The General Directorate – State Aid and Company Financing will verify the eligibility of applications.

  • For support or questions regarding the process, please contact Luxinnovation.

Call for projects for measures promoting energy efficiency outside buildings

A call for projects is open from 5 January 2026 to 30 June 2026 to support measures that promote energy efficiency outside buildings.
This call will be conducted on a ‘first come, first served’ basis, i.e. aid will be granted in the order in which applications are received, until the €15 million budget is exhausted. No specifications have been published; only the conditions specified in the law of 8 December 2025 on the renewal of the environmental and climate protection aid scheme will apply.

N.B. State subsidies cannot be combined for the same project

Subsidies from electricity and natural gas suppliers

Since 2015, natural gas and electricity suppliers are required to make energy savings for consumers under the obligation scheme. Since then, energy suppliers have been offering support and advice, as well as subsidy programmes for consumers to implement energy efficiency measures.

The following suppliers offer this service for companies:

N.B. Supplier subsidies can be combined with any state subsidies for the same project.

Implementation aid

Contact us

I would like more information on:

  • Fit 4 Sustainability
  • Government subsidies
  • Support
  • Identifying partners

I would like more information on:

  • Klimabonus subsidies or photovoltaic and electromobility subsidy programmes
  • A technical aspect of the measure
  • A specific tool
  • A technical aspect of the site (404 link, etc.)

Contact Klima-Agence