{"id":4303,"date":"2024-09-11T17:38:40","date_gmt":"2024-09-11T15:38:40","guid":{"rendered":"https:\/\/kpb.h2a.lu\/mesures\/hotellerie-recuperation-de-la-chaleur-via-une-pompe-a-chaleur-sur-les-eaux-grises-ou-le-circuit-de-refroidissement\/"},"modified":"2026-07-14T13:57:03","modified_gmt":"2026-07-14T11:57:03","slug":"hotellerie-recuperation-de-la-chaleur-via-une-pompe-a-chaleur-sur-les-eaux-grises-ou-le-circuit-de-refroidissement","status":"publish","type":"mesures","link":"https:\/\/kpb.h2a.lu\/en\/measures\/hotellerie-recuperation-de-la-chaleur-via-une-pompe-a-chaleur-sur-les-eaux-grises-ou-le-circuit-de-refroidissement\/","title":{"rendered":"Hotels : Heat recovery via heat pump on grey water or cooling circuit"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Heat recovery via heat pump on grey water or cooling circuit<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">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.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This technology is particularly suitable for hotels with a high demand for domestic hot water.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">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.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"type-numerotation\"><span class=\"type-numerotation-span visually-hidden\"><\/span>Energy and environmental impact<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The two joint positive effects are as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Energy savings on DHW production because the energy evacuated to the outside is recovered (= waste heat).<\/li>\n\n\n\n<li>There is an environmental gain because final consumption for the DHW production is lower than the initial consumption.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">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).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"type-numerotation\"><span class=\"type-numerotation-span visually-hidden\"><\/span>State subsidy application<\/h3>\n\n\n\n<div class=\"wp-block-group has-light-green-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h4 class=\"wp-block-heading\">State subsidies<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Please note: any application for government or non-government subsidies must comply with the \u201cincentive effect\u201d, subject to compliance with the subsidy conditions.<\/strong><br>To ensure that the \u2018incentive effect\u2019 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.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/guichet.public.lu\/en\/entreprises\/financement-aides\/regime-sme-packages\/soutien-pme\/sme-packages-sustainability.html\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>SME Packages &#8211; Sustainability<\/strong><\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>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 \u20ac to 25.000 \u20ac excl. VAT.<\/li>\n\n\n\n<li>For more information:\n<ul class=\"wp-block-list\">\n<li><a href=\"mailto:ehandwierk@cdm.lu\">Chambre des M\u00e9tiers<\/a> for craft companies<\/li>\n\n\n\n<li><a href=\"mailto:sustainability@cc.lu\">Chamber of Commerce<\/a> for businesses in the non-craft sectors<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/guichet.public.lu\/en\/entreprises\/financement-aides\/aides-environnement\/industrie-services\/aide-protec-environnement.html\" data-type=\"link\" data-id=\"https:\/\/guichet.public.lu\/en\/entreprises\/financement-aides\/aides-environnement\/industrie-services\/aide-protec-environnement.html\" target=\"_blank\" rel=\"noopener\"><strong>Aid for environmental protection<\/strong><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">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.<br>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.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The following maximum rates apply:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th scope=\"col\" rowspan=\"2\">Activity<\/th><th scope=\"colgroup\" colspan=\"3\">Company size<\/th><\/tr><tr><th scope=\"col\">Small<\/th><th scope=\"col\">Medium<\/th><th scope=\"col\">Large<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">Energy efficiency outside buildings<\/th><td>25&nbsp;%<\/td><td>20&nbsp;%<\/td><td>15&nbsp;%<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Maximum rates for aid under Article 7<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">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.<br>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 \u20ac100,000 and more than \u20ac50,000.<br>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.<br><a href=\"https:\/\/guichet.public.lu\/en\/citoyens\/organismes\/organismes_entreprises\/ministere-economie\/direction-recherche-innov.html\" data-type=\"link\" data-id=\"https:\/\/guichet.public.lu\/en\/citoyens\/organismes\/organismes_entreprises\/ministere-economie\/direction-recherche-innov.html\" target=\"_blank\" rel=\"noopener\">The General Directorate &#8211; State Aid and Company Financing<\/a> will verify the eligibility of applications.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For support or questions regarding the process, please contact <a href=\"mailto:Aides@luxinnovation.lu\" data-type=\"mailto\" data-id=\"mailto:Aides@luxinnovation.lu\">Luxinnovation<\/a>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N.B. State subsidies cannot be combined for the same project<\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">Subsidies from electricity and natural gas suppliers<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Since 2015, natural gas and electricity suppliers have been required to help consumers achieve energy savings as part of the obligation scheme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Since then, energy suppliers have been offering support and advisory services, as well as subsidy programmes for consumers to implement energy efficiency measures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The following suppliers offer this service to companies:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.enoprimes.lu\/fr\/entreprises\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">enoprimes<\/a> Enovos + SUDenergie<\/li>\n\n\n\n<li><a href=\"mailto:p%73@su%64%65ne%72gie%2elu\">SUDenergie<\/a><\/li>\n\n\n\n<li><a href=\"mailto:s%75b%76e%6eti%6fn@s%75dstr%6fum%2e%6cu\">Sudstroum<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"has-light-green-background-color has-background wp-block-paragraph\">In 2026, enoprimes will celebrate its 10th anniversary. On this occasion, special incentives are being offered to businesses for any project initiated between 1 July and 31 December 2026, generating &lt; 1,500 MWh of energy savings and not already benefiting from a preferential tariff scheme.<br><br>For further details regarding eligibility criteria, please visit the website: <a href=\"https:\/\/www.enoprimes.lu\/fr\/entreprises\/enoprimes\/actions-speciales\/\" target=\"_blank\" rel=\"noopener\">Special offer \u2013 10 years of enoprimes<\/a><\/p>\n\n\n\n<p class=\"has-light-green-background-color has-background wp-block-paragraph\"><strong>N.B. Supplier subsidies can be combined with any state subsidies for the same project.<\/strong><\/p>\n","protected":false},"featured_media":4299,"parent":0,"template":"","secteur":[67,69,62],"thematique":[78],"application":[104],"class_list":["post-4303","mesures","type-mesures","status-publish","has-post-thumbnail","hentry","secteur-horeca-en","secteur-commerce-en","secteur-craft-industry","thematique-energie-en","application-heating"],"acf":[],"_links":{"self":[{"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/mesures\/4303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/mesures"}],"about":[{"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/types\/mesures"}],"version-history":[{"count":9,"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/mesures\/4303\/revisions"}],"predecessor-version":[{"id":3474512,"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/mesures\/4303\/revisions\/3474512"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/media\/4299"}],"wp:attachment":[{"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/media?parent=4303"}],"wp:term":[{"taxonomy":"secteur","embeddable":true,"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/secteur?post=4303"},{"taxonomy":"thematique","embeddable":true,"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/thematique?post=4303"},{"taxonomy":"application","embeddable":true,"href":"https:\/\/kpb.h2a.lu\/en\/wp-json\/wp\/v2\/application?post=4303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}