{"id":18662,"date":"2025-09-17T09:00:21","date_gmt":"2025-09-17T07:00:21","guid":{"rendered":"https:\/\/hayaenergy.com\/towards-a-new-capacity-mechanism-in-france\/"},"modified":"2025-09-16T17:21:32","modified_gmt":"2025-09-16T15:21:32","slug":"blog-2025-nouveau-mecanisme-de-capacite-en-france","status":"publish","type":"post","link":"https:\/\/hayaenergy.com\/fr\/blog-2025-nouveau-mecanisme-de-capacite-en-france\/","title":{"rendered":"Vers un nouveau m\u00e9canisme de capacit\u00e9 en France"},"content":{"rendered":"<p style=\"text-align: justify;\">Le m\u00e9canisme de capacit\u00e9 fran\u00e7ais, instaur\u00e9 pour <strong>garantir la s\u00e9curit\u00e9 d\u2019approvisionnement \u00e9lectrique lors des pics de consommation<\/strong>, \u00e9volue profond\u00e9ment \u00e0 partir de l\u2019hiver 2026\u20132027. Face aux limites du syst\u00e8me actuel, volatilit\u00e9 des prix, complexit\u00e9 op\u00e9rationnelle et asym\u00e9tries d\u2019informations, la r\u00e9forme s\u2019inscrit dans une dynamique europ\u00e9enne visant \u00e0 <strong>simplifier le dispositif<\/strong> et \u00e0 mieux s\u00e9curiser les investissements.<\/p>\n<p style=\"text-align: justify;\">D\u00e9sormais centralis\u00e9, le m\u00e9canisme place <strong>RTE en tant qu\u2019acheteur unique<\/strong>, organisant chaque ann\u00e9e des ench\u00e8res pour contractualiser les capacit\u00e9s n\u00e9cessaires. Les producteurs et agr\u00e9gateurs doivent certifier \u00e0 l\u2019avance leurs capacit\u00e9s disponibles, tandis que le syst\u00e8me de r\u00e9\u00e9quilibrage est remplac\u00e9 par un march\u00e9 secondaire d\u2019ajustement.<\/p>\n<p style=\"text-align: justify;\">La r\u00e9forme poursuit un double objectif : favoriser l\u2019\u00e9mergence de nouvelles capacit\u00e9s d\u00e9carbon\u00e9es, telles que l\u2019effacement, le stockage par batteries et les moyens thermiques bas-carbone, tout en ma\u00eetrisant l\u2019impact sur les consommateurs dans un contexte marqu\u00e9 par la fin progressive de l\u2019ARENH (voir article\u00a0: <strong><a href=\"https:\/\/hayaenergy.com\/fr\/blog-approvisionnement-post-arenh\/\" target=\"_blank\" rel=\"noopener\">Approvisionnement post-Arenh, une page se tourne<\/a><\/strong>). Toutefois, elle impose \u00e9galement de nouveaux d\u00e9fis pour les producteurs. Notamment, en termes de visibilit\u00e9 \u00e0 long terme, de gestion de tr\u00e9sorerie et de strat\u00e9gie de participation aux ench\u00e8res, <strong>rendant essentielle une approche optimis\u00e9e pour anticiper risques et opportunit\u00e9s.<\/strong><\/p>\n<p style=\"text-align: justify;\">Instaur\u00e9 en 2017, le m\u00e9canisme de capacit\u00e9 a \u00e9t\u00e9 un pilier de la s\u00e9curit\u00e9 d\u2019approvisionnement \u00e9lectrique en France (voir article\u00a0: <strong><a href=\"https:\/\/hayaenergy.com\/fr\/blog-les-rouages-du-mecanisme-de-capacite\/\" target=\"_blank\" rel=\"noopener\">Les rouages du m\u00e9canisme de capacit\u00e9<\/a><\/strong>). Il a permis de maintenir sur le march\u00e9 des moyens de pointe (centrales thermiques, effacement industriel, solutions de flexibilit\u00e9) qui, sans r\u00e9mun\u00e9ration compl\u00e9mentaire, n\u2019auraient pas \u00e9t\u00e9 \u00e9conomiquement viables compte tenu de leur faible nombre d\u2019heures de fonctionnement. Ce dispositif d\u00e9centralis\u00e9, reposant sur des \u00e9changes entre producteurs et fournisseurs, a contribu\u00e9 \u00e0 s\u00e9curiser les pointes hivernales, essentielles dans un pays o\u00f9 la consommation est tr\u00e8s sensible au froid.<\/p>\n<p style=\"text-align: justify;\">Apr\u00e8s pr\u00e8s de dix ans de fonctionnement, plusieurs limites sont apparues : complexit\u00e9 du syst\u00e8me, volatilit\u00e9 des prix des certificats de capacit\u00e9, poids pr\u00e9pond\u00e9rant de certains acteurs comme EDF, et manque de pr\u00e9visibilit\u00e9 sur la disponibilit\u00e9 r\u00e9elle des capacit\u00e9s certifi\u00e9es.<\/p>\n<p style=\"text-align: justify;\">En 2022, les pouvoirs publics et RTE ont d\u00e9cid\u00e9 de r\u00e9interroger la vocation du m\u00e9canisme, sans tabous. RTE a lanc\u00e9 une consultation en avril 2022 et, en 2025, a publi\u00e9 le premier projet des nouvelles r\u00e8gles. <strong>L\u2019objectif de cette refonte est de simplifier le m\u00e9canisme<\/strong>, d\u2019envoyer un signal de prix clair pour les investissements \u00e0 long terme et de ma\u00eetriser la facture des consommateurs, dans le contexte de fin de l\u2019ARENH.<\/p>\n<p style=\"text-align: justify;\"><strong>Principes de base du nouveau m\u00e9canisme<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>Architecture centralis\u00e9e :<\/strong> RTE devient l\u2019acheteur unique. <strong>Les consommateurs et fournisseurs ne participent plus directement aux ench\u00e8res mais paient une taxe.<\/strong> Chaque contributeur est pr\u00e9lev\u00e9 au niveau de sa puissance de r\u00e9f\u00e9rence. L\u2019allocation exacte par type de consommateur reste encore inconnue. Selon les GT de RTE, les contributeurs restent libres de la r\u00e9percussion de leur quote-part, m\u00eame si la DGEC pourrait demander aux principaux fournisseurs de communiquer leur m\u00e9thodologie \u00e0 la CRE.<\/li>\n<li><strong>Certification des capacit\u00e9s :<\/strong> producteurs, agr\u00e9gateurs et op\u00e9rateurs d\u2019effacement doivent certifier leurs capacit\u00e9s. Chaque <em>Entit\u00e9 de Certification<\/em> (EDC) re\u00e7oit un <em>volume certifi\u00e9<\/em> (Vcertifi\u00e9). Ce volume peut \u00eatre augment\u00e9 lors de nouveaux guichets de certification, mais <u>il est interdit de diminuer le volume<\/u>.<\/li>\n<li>En r\u00e9gime nominal, <strong>deux ench\u00e8res<\/strong> seront organis\u00e9es :\n<ol>\n<li>Une <strong>ench\u00e8re principale en AL-4<\/strong>, avec l\u2019ensemble de l\u2019offre incluant si besoin la mise \u00e0 disposition de contrats pluriannuels.<\/li>\n<li>Une <strong>ench\u00e8re secondaire d\u2019ajustement en AL-1<\/strong>, o\u00f9 un volume sera r\u00e9serv\u00e9 aux flexibilit\u00e9s d\u00e9carbon\u00e9es (effacement, batteries, etc.). Ce volume r\u00e9serv\u00e9 fera \u00e9merger un prix de clearing propre aux flexibilit\u00e9s.<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">*L\u2019int\u00e9gralit\u00e9 du <em>volume certifi\u00e9<\/em> doit \u00eatre pr\u00e9sent\u00e9 \u00e0 l\u2019ench\u00e8re pour laquelle le volume a \u00e9t\u00e9 certifi\u00e9. Le volume retenu \u00e0 l\u2019ench\u00e8re constitue le <em>volume ench\u00e8re<\/em> et il est automatiquement contractualis\u00e9 entre RTE et le <em>Titulaire de P\u00e9rim\u00e8tre de Certification<\/em> (TPC). Ce <em>volume contractualis\u00e9<\/em> est l\u2019engagement de disponibilit\u00e9 et ouvre le droit \u00e0 une r\u00e9mun\u00e9ration dans le cadre du m\u00e9canisme.<\/p>\n<p style=\"text-align: justify;\">**<em>Les Entit\u00e9s de certification<\/em> (EDC) sont r\u00e9mun\u00e9r\u00e9es au \u00ab\u00a0<em>Pay-as-Clear\u00a0\u00bb<\/em>.<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>March\u00e9 secondaire :<\/strong> l\u2019ancien m\u00e9canisme de r\u00e9\u00e9quilibrage est supprim\u00e9 et remplac\u00e9 par un march\u00e9 secondaire qui permet aux acteurs d\u2019ajuster leurs engagements. La participation aux ench\u00e8res et un pr\u00e9requis pour le march\u00e9 secondaire.<\/li>\n<li><strong>Premi\u00e8re p\u00e9riode de livraison : <\/strong>hiver 2026\u20132027. Pour limiter les d\u00e9calages de tr\u00e9sorerie, une contribution anticip\u00e9e des consommateurs est pr\u00e9vue d\u00e8s l\u2019\u00e9t\u00e9 2026.<\/li>\n<li><strong>Prix Plafond Interm\u00e9diaire :<\/strong> s\u2019applique aux capacit\u00e9s existantes pour limiter le co\u00fbt du m\u00e9canisme et \u00e9viter des rentes excessives.<\/li>\n<\/ul>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-large wp-image-18677 aligncenter\" src=\"https:\/\/hayaenergy.com\/wp-content\/uploads\/2025\/09\/Picture1-3-1024x574.png\" alt=\"Consultation on the overhaul of the capacity mechanism\" width=\"1024\" height=\"574\" srcset=\"https:\/\/hayaenergy.com\/wp-content\/uploads\/2025\/09\/Picture1-3-1024x574.png 1024w, https:\/\/hayaenergy.com\/wp-content\/uploads\/2025\/09\/Picture1-3-300x168.png 300w, https:\/\/hayaenergy.com\/wp-content\/uploads\/2025\/09\/Picture1-3-768x430.png 768w, https:\/\/hayaenergy.com\/wp-content\/uploads\/2025\/09\/Picture1-3-1536x860.png 1536w, https:\/\/hayaenergy.com\/wp-content\/uploads\/2025\/09\/Picture1-3.png 1905w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p style=\"text-align: center;\"><em>Source\u00a0: GT RTE n\u00b014 \u2013 Concertation sur la refonte du m\u00e9canisme de capacit\u00e9<\/em><\/p>\n<p style=\"text-align: justify;\"><strong>Calendrier pr\u00e9visionnel<\/strong><\/p>\n<p style=\"text-align: justify;\">Pour les premi\u00e8res p\u00e9riodes (PL 2026\u20132030), une seule ench\u00e8re est pr\u00e9vue :<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"201\"><strong>P\u00e9riode de livraison<\/strong><\/td>\n<td width=\"201\"><strong>Certification<\/strong><\/td>\n<td width=\"201\"><strong>Ench\u00e8re principale<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"201\">PL 2026 &#8211; 2027<\/td>\n<td width=\"201\">1er semestre 2026<\/td>\n<td width=\"201\">Automne 2026<\/td>\n<\/tr>\n<tr>\n<td width=\"201\">PL 2027 &#8211; 2028<\/td>\n<td width=\"201\">2027<\/td>\n<td width=\"201\">Automne 2027<\/td>\n<\/tr>\n<tr>\n<td width=\"201\">PL 2028 &#8211; 2029<\/td>\n<td width=\"201\">2028<\/td>\n<td width=\"201\">Automne 2028<\/td>\n<\/tr>\n<tr>\n<td width=\"201\">PL 2029 &#8211; 2030<\/td>\n<td width=\"201\">2029<\/td>\n<td width=\"201\">Automne 2029<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><strong>Conclusions<\/strong><\/p>\n<p style=\"text-align: justify;\">Le nouveau m\u00e9canisme de capacit\u00e9 apporte plusieurs avanc\u00e9es, notamment une simplification pour les consommateurs gr\u00e2ce \u00e0 la centralisation via RTE, un signal prix plus clair avec des ench\u00e8res en AL-4, et une ench\u00e8re principale regroupant la plupart des volumes, qui devrait refl\u00e9ter l\u2019\u00e9quilibre du syst\u00e8me.<\/p>\n<p style=\"text-align: justify;\">Pour les producteurs, plusieurs d\u00e9fis apparaissent :<\/p>\n<ol style=\"text-align: justify;\">\n<li>en AL-4, anticiper pour l\u2019ann\u00e9e de livraison (AL) les revenus attendus sur le march\u00e9 de l\u2019\u00e9nergie pour chaque actif, afin de calculer le manque \u00e0 gagner (\u00ab missing money \u00bb) \u00e0 int\u00e9grer dans leurs offres lors des ench\u00e8res ;<\/li>\n<li>si leur vision \u00e9volue entre PL-4 et AL, ils devront tenter de s\u2019ajuster via le march\u00e9 secondaire, sans garantie toutefois de trouver les volumes n\u00e9cessaires ;<\/li>\n<li>enfin, la r\u00e9mun\u00e9ration diff\u00e9r\u00e9e en AL+1 risque de peser sur leur tr\u00e9sorerie.<\/li>\n<\/ol>\n<p style=\"text-align: justify;\">Pour les consommateurs, des incertitudes persistent sur les prix pour l\u2019hiver 2026\u20132027, car l\u2019ench\u00e8re n\u2019aura lieu qu\u2019au premier semestre 2026 alors que le processus budg\u00e9taire commence d\u00e8s 2025. N\u00e9anmoins, \u00e0 partir de 2030, la visibilit\u00e9 devrait s\u2019am\u00e9liorer gr\u00e2ce aux ench\u00e8res en AL-4.<\/p>\n<p style=\"text-align: justify;\">Cette \u00e9volution intervient toutefois dans un contexte particulier : le m\u00e9canisme actuel prendra fin en mars 2026, tandis que le nouveau dispositif d\u00e9marrera \u00e0 l\u2019hiver 2026\u20132027. Pendant cette p\u00e9riode, les deux syst\u00e8mes vont se chevaucher, g\u00e9n\u00e9rant une complexit\u00e9 suppl\u00e9mentaire pour producteurs et consommateurs.<\/p>\n<p style=\"text-align: justify;\">Dans ce contexte, <strong>il est crucial pour les producteurs de d\u00e9velopper une strat\u00e9gie optimis\u00e9e pour g\u00e9rer les risques et opportunit\u00e9s.<\/strong> Et pour les consommateurs, de suivre attentivement les changements du m\u00e9canisme afin d\u2019anticiper l\u2019\u00e9volution des prix. <strong>HES accompagne les producteurs dans la d\u00e9finition et la mise en \u0153uvre de leur strat\u00e9gie<\/strong>, afin de transformer ces contraintes en leviers de cr\u00e9ation de valeur.<\/p>\n<p style=\"text-align: right;\"><em>Lourdes Granados Mesa<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le m\u00e9canisme de capacit\u00e9 fran\u00e7ais, instaur\u00e9 pour garantir la s\u00e9curit\u00e9 d\u2019approvisionnement \u00e9lectrique lors des pics de consommation, \u00e9volue profond\u00e9ment \u00e0 partir de l\u2019hiver 2026\u20132027. Face aux limites du syst\u00e8me actuel, volatilit\u00e9 des prix, complexit\u00e9 op\u00e9rationnelle et asym\u00e9tries d\u2019informations, la r\u00e9forme s\u2019inscrit dans une dynamique europ\u00e9enne visant \u00e0 simplifier le dispositif et \u00e0 mieux s\u00e9curiser les [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":18657,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[55,31],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - 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