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.
Heat recovery via heat pump on grey water or cooling circuit
The project consists in recovering the heat lost in the grey water system (showers, sinks, washing machines, dishwashers, etc.) of a hotel or restaurant by reusing it to heat domestic hot water (large consumption in such facilities). The process involves the recovery of heat via a water-to-water heat pump from a cold source at high temperature throughout the year.
This technology is particularly suitable for hotels with a high demand for domestic hot water.
By installing this technology, which has been available on the market for more than 5 years, the company can save on its energy bills and reduce its carbon footprint. However, implementing this measure can be rather complex with a medium-to-long-term return on investment, and requires the temporary shutdown of production during the technical installation stage.
Energy and environmental impact
The two joint positive effects are as follows:
- Energy savings on DHW production because the energy evacuated to the outside is recovered (= waste heat).
- There is an environmental gain because final consumption for the DHW production is lower than the initial consumption.
The estimated energy savings are around 60% for the domestic hot water production system. This translates into a positive impact on the carbon footprint, particularly if the DHW was initially produced using a fossil fuel (although dependent on the initial energy production method).
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.
Temporary environmental impact aid
Extended “SME Packages Sustainability” aid scheme, to give companies greater incentives to invest in measures that significantly improve their environmental impact. Investments under this climate protection measure amount to 70% for small enterprises, 60% for medium-sized enterprises and 50% for large enterprises, for projects costing more than €7,500, with a maximum subsidy of €100,000.
- Verification of company eligibility and costs: Ministry of the Economy (Department for Support to SMEs)
- For any questions:
- Chambre des Métiers for the trades (Chamber of Skilled Trades and Crafts)
- Chamber of Commerce for companies in the non-craft sectors
Flat-rate subsidy of €5,000 for small and medium-sized companies for projects to reduce their environmental impact, costing between €25,000 and €6,650 excluding VAT.
- For any questions:
- Chambre des Métiers for the trades (Chamber of Skilled Trades and Crafts)
- Chamber of Commerce for companies in the non-craft sectors
Environmental protection scheme – Investment aid for the protection of the environment
- Verification of company eligibility and costs: General Directorate for Industry, new Technology and Research
- Support in drawing up the subsidy application file prior to submission to the Ministry of the Economy
- For any questions: Luxinnovation
- More information and recommendations for companies on investing in the environment are available in the Guide simplifié pour les entreprises (Simplified Guide for Companies)
- Support in drawing up the subsidy application file prior to submission to the Ministry of the Economy
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.