{"id":38143,"date":"2025-12-19T18:26:38","date_gmt":"2025-12-19T17:26:38","guid":{"rendered":"https:\/\/www.cnr.tm.fr\/programme-de-travaux-du-rhone-a-lhorizon-2041\/"},"modified":"2026-08-18T16:18:58","modified_gmt":"2026-08-18T14:18:58","slug":"programme-of-works-on-the-rhone-up-to-2041","status":"publish","type":"page","link":"https:\/\/www.cnr.tm.fr\/en\/challenges-and-strategy\/programme-of-works-on-the-rhone-up-to-2041\/","title":{"rendered":"Programme of works on the Rhone up to 2041"},"content":{"rendered":"\n    \n\n\n\n<div class=\"banner_wrap as--txt-light\" style=background-color:#C8102E banner-reveal reveal>\n            <div class=\"banner-content editor-wysiwyg\">\n                            <div class=\"breadcrumb-line\"><ol class=\"c-breadcrumb\" aria-label=\"breadcrumb\" role=\"navigation\" itemscope itemtype=\"http:\/\/schema.org\/BreadcrumbList\"><li itemprop=\"itemListElement\" itemscope itemtype=\"http:\/\/schema.org\/ListItem\"><a itemprop=\"item\" href=\"https:\/\/www.cnr.tm.fr\/en\/\" aria-level=\"1\"><span itemprop=\"name\">Home<\/span><\/a><meta itemprop=\"position\" content=\"1\"\/><\/li><li itemprop=\"itemListElement\" itemscope itemtype=\"http:\/\/schema.org\/ListItem\"><span itemprop=\"name\"><\/span><meta itemprop=\"position\" content=\"2\"\/><\/li><\/ol><\/div>\n                                        <h1 class=\"a-title-1\">Programme of works on the Rhone up to 2041<\/h1>\n                                        <p>Up to 2041, CNR will carry out a programme of studies and works intended <strong>to strengthen the river\u2019s energy output, hydraulic safety, and the continuity of essential uses<\/strong>.<\/p>\n<p>This programme extends the commitments set out in the \u201cRhone Development\u201d law by completing the modernisation of the existing structures and by anticipating the effects of climate change.<\/p>\n<p>It mobilises investments targeted at hydroelectricity, navigation, and ecological continuities, in response to the <strong>energy and environmental challenges of the Rhone Valley<\/strong>. Faithful to its missions as industrial developer, CNR acts<strong> to maintain a steady balance between energy, water and mobility<\/strong>.<\/p>\n\n                                <\/div>\n\n                    <div class=\"banner-pin\" banner-reveal-pin>\n                <div class=\"banner-images\">\n                                        <div class=\"slider-wrap\" banner-gallery dir=\"rtl\">\n                        <div class=\"slider\" data-slick='{\"slidesToShow\": 1, \"infinite\": true, \"arrows\": false, \"autoplay\": true, \"rtl\": true}'>\n                                                                                            <div class=\"banner-image\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.cnr.tm.fr\/app\/uploads\/2025\/12\/CNR_travaux_maintenance-1050x720.jpg\" alt=\"\" loading=\"eager\" fetchpriority=\"high\">\n                                <\/div>\n                                                    <\/div>\n                    <\/div>\n                    <button type=\"button\" class=\"slick-autoplay-toggle\" aria-label=\"Mettre le d\u00e9filement automatique en pause \/ Jouer\">\n                            <svg class=\"a-icon as--12 slick-pause-icon as--white\" aria-hidden=\"true\"\n         focusable=\"false\">\n        <use xlink:href=\"\/app\/themes\/cnr-acti\/assets\/img\/svg\/icon-sprite.svg#icon-pause\"><\/use>\n    <\/svg>\n\n                            <svg class=\"a-icon as--12 slick-play-icon as--white\" aria-hidden=\"true\"\n         focusable=\"false\">\n        <use xlink:href=\"\/app\/themes\/cnr-acti\/assets\/img\/svg\/icon-sprite.svg#icon-play\"><\/use>\n    <\/svg>\n\n                        <span class=\"slick-pause-text sr-only\">Pause<\/span>\n                        <span class=\"slick-play-text sr-only\">Jouer<\/span>\n                    <\/button>\n                <\/div>\n            <\/div>\n        \n            <\/div>\n\n\n\n\n    \n                \n\n<section class=\"content-section as--normal-margin as--txt-dark \" >\n            <div class=\"inner-wrap\" auto-reveal>\n            <div class=\"editor-wysiwyg h-mb-40\">\n                <h2 class=\"a-title-2\">The programme of works up to 2041<\/h2>\n<p>This programme pursues the goal of <strong>optimising the infrastructures of the Rhone in a context of increasing variability of discharges and increasing energy needs<\/strong>. It carries on from the master plan adopted in 2003, now updated up to 2041, which encompasses the concessionary\u2019s commitments for the remaining duration of the concession.<\/p>\n<p>The programme of works completes this framework by setting out operational and contractual target dates. It requires an investment estimated at \u20ac500 M.<\/p>\n<p>The works will concern four major sectors:<\/p>\n<ul>\n<li><strong>Increasing the Rhone\u2019s energy capacities <\/strong>(modernisation of plants, new studies on flexibility and storage);<\/li>\n<li><strong>Equipping several dams with small hydroelectric plants and fish passes<\/strong>;<\/li>\n<li><strong>Exploiting small heads <\/strong>through the installation of microturbines;<\/li>\n<li><strong>Modernising navigation structures<\/strong>, in particular at Boll\u00e8ne and Ch\u00e2teauneuf-du-Rh\u00f4ne.<\/li>\n<\/ul>\n<p>They plan in particular to increase the production of the Montelimar hydropower plant, and the construction of 6 small hydropower plants and fish passes on several dams, as well as the installation of microturbines on the weirs of the Rhone to exploit small heads. It also includes the doubling of the downstream gates of the locks of Boll\u00e8ne and Ch\u00e2teauneuf-du-Rh\u00f4ne to increase the reliability of navigation.<\/p>\n\n            <\/div>\n        <\/div>\n        <div class=\"inner-wrap \">\n        <div class=\"as--column as--columns-2\" auto-reveal>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                        <p>In parallel, <strong>several studies will be carried out on the flexibility of the Rhone\u2019s hydroelectricity network<\/strong>: new production capacities at G\u00e9nissiat, adjustment of the forebay\u2019s operating level, the development of small pumped energy transfer stations linked to the river, and the deployment of hybrid batteries in existing plants.<\/p>\n<p>The entire programme of works is intended <strong>to increase renewable hydroelectricity production, support modal transfer and strengthen the resilience of the Rhone-Saone corridor<\/strong>.<\/p>\n\n                                                                                                                                    <\/div>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                                                        <div class=\"editor-img as--rounded\">\n                                    <picture>\n                                        <img decoding=\"async\" src=\"https:\/\/www.cnr.tm.fr\/app\/uploads\/2025\/12\/CNR_travaux_maintenance_ecluse-450x450.jpg\" alt=\"\">\n                                    <\/picture>\n                                <\/div>\n                                                                                                                                    <\/div>\n                    <\/div>\n    <\/div>\n<\/section>\n\n\n\n    \n    \n\n<section class=\"content-section as--normal-margin as--txt-dark as--bgcolor\" style=background-color:#F9AF1E26>\n            <div class=\"inner-wrap\" reveal>\n            <div class=\"editor-wysiwyg h-mb-40\">\n                <h3 class=\"a-title-3\"><span style=\"color: #e8a117;\">Developing new hydroelectricity capacities<\/span><\/h3>\n<p>Several energy projects are under study <strong>to bolster the installed capacity and flexibility of the Rhone<\/strong>. They involve in particular the site of G\u00e9nissiat, where CNR will study the development of new hydroelectricity capacities and raise the operating height of the forebay to optimise and modulation.<\/p>\n<p>Studies will also focus on the construction of small pumped energy transfer stations connected to the river, and on the integration of hybrid batteries in the existing hydroelectricity facilities <strong>to improve the response to the electricity system during peak demands<\/strong>.<\/p>\n\n            <\/div>\n        <\/div>\n        <div class=\"inner-wrap \">\n        <div class=\"as--column as--columns-2\" reveal>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                                                        <div class=\"editor-img as--rounded\">\n                                    <picture>\n                                        <img decoding=\"async\" src=\"https:\/\/www.cnr.tm.fr\/app\/uploads\/2025\/12\/CNR_travaux_maintenance_centrale_hydroelectrique-450x450.jpg\" alt=\"\">\n                                    <\/picture>\n                                <\/div>\n                                                                                                                                    <\/div>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                        <p>Increasing the production of the hydropower plant of Mont\u00e9limar will require the modernisation of three turbine units and adjusting the operating height.<\/p>\n<p>The works, estimated at about \u20ac54 M, will permit a gain of around 100 GWh a year, that is to say the consumption of 15,000 people.<\/p>\n<p>This investment shows the <strong>priority given to modernising existing structures<\/strong>.<\/p>\n\n                                                                                                                                    <\/div>\n                    <\/div>\n    <\/div>\n<\/section>\n\n\n\n    \n                \n\n<section class=\"content-section as--normal-margin as--txt-dark \" >\n            <div class=\"inner-wrap\" reveal>\n            <div class=\"editor-wysiwyg h-mb-40\">\n                <h3 class=\"a-title-3\"><span style=\"color: #e8a117;\">Optimising existing structures<\/span><\/h3>\n<p>A large part of the programme involves the equipment of existing dams <strong>to increase renewable energy production while preserving the river\u2019s biodiversity<\/strong>.<\/p>\n<p>CNR plans the construction of six small hydropower plants (SHP) and six fish passes to increase output and restore connections for fish between sections of river.<\/p>\n<p>These works represent a gain in production estimated at +228 GWh a year.<\/p>\n\n            <\/div>\n        <\/div>\n        <div class=\"inner-wrap \">\n        <div class=\"as--column as--columns-2\" reveal>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                        <ul>\n<li>These items of equipment will allow harnessing currently unexploited discharges, especially on the Old Rhone (bypassed sections of the river).<\/li>\n<li>Microturbines, with capacities ranging from 500 to 1,000 kW, will provide targeted gains without modifying the hydraulic balance.<\/li>\n<li>The developments carried out at Rochemaure and Le Pouzin serve as references for linking energy production with ecological restoration.<\/li>\n<\/ul>\n\n                                                                                                                                    <\/div>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                        <ul>\n<li>The programme also includes the doubling of the downstream gates of the locks of Boll\u00e8ne and Ch\u00e2teauneuf-du-Rh\u00f4ne.<\/li>\n<li>These structures, among the oldest on the Rhone, were equipped with only one downstream gate, limiting their availability in the case of damage.<\/li>\n<li>The new installations will durably strengthen the reliability of the navigation service and river transport.<\/li>\n<\/ul>\n\n                                                                                                                                    <\/div>\n                    <\/div>\n    <\/div>\n<\/section>\n\n<section class=\"content-section\">\n    <div class=\"inner-wrap\">\n                    <div class=\"editor-img\" reveal>\n                <figure role=\"figure\" aria-label=\"\">\n                                        <img decoding=\"async\" src=\"https:\/\/www.cnr.tm.fr\/app\/uploads\/2025\/12\/CNR_travaux_petite_centrale_hydroelectrique-1050x720.jpg\" alt=\"\" width=\"1920\" height=\"1080\" loading=\"lazy\">\n                    <figcaption><\/figcaption>\n                <\/figure>\n            <\/div>\n            <\/div>\n<\/section>\n\n\n\n\n    \n    \n\n<section class=\"content-section as--normal-margin as--txt-dark as--bgcolor\" style=background-color:#F9AF1E26>\n            <div class=\"inner-wrap\" reveal>\n            <div class=\"editor-wysiwyg h-mb-40\">\n                <h3 class=\"a-title-3\" style=\"text-align: center;\"><span style=\"color: #e8a117;\">Localisation and challenges<\/span><\/h3>\n\n            <\/div>\n        <\/div>\n        <div class=\"inner-wrap as--wide\">\n        <div class=\"as--column as--columns-3\" reveal>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                        <p><strong>Production<\/strong><br \/>\nTargeted operations from the Upper Rhone to the delta to increase renewable hydroelectricity production.<\/p>\n\n                                                                                                                                    <\/div>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                        <p><strong>Navigation<\/strong><br \/>\nWorks on locks and river infrastructures to preserve the logistic continuity of the Rhone-Saone corridor.<\/p>\n\n                                                                                                                                    <\/div>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                        <p><strong>\u00c9cologie<\/strong><br \/>\nSmall hydropower plants, fish passes and continuity of fish populations: structural actions to favour the river\u2019s ecological functions.<\/p>\n\n                                                                                                                                    <\/div>\n                    <\/div>\n    <\/div>\n<\/section>\n\n\n\n    \n                \n\n<section class=\"content-section as--normal-margin as--txt-dark \" >\n            <div class=\"inner-wrap\" reveal>\n            <div class=\"editor-wysiwyg h-mb-40\">\n                <h2 class=\"a-title-2\">An investment plan in the service of the territories<\/h2>\n<p>In addition to the works programme, an investment plan is deployed in the Rhone Valley <strong>to support renewable energy production, carbon-free logistics and sustainable water resource management<\/strong>.<\/p>\n<p>This plan budgeted at close to \u20ac300 M has one objective: <strong>accelerating concrete projects that can be carried out from now to 2041<\/strong>. It relies on work carried out between the government, CNR and territorial actors, resulting in the reallocation of credits previously allocated to the Rhonergia project.<\/p>\n\n            <\/div>\n        <\/div>\n        <div class=\"inner-wrap \">\n        <div class=\"as--column as--columns-2\" reveal>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                        <p>This devotes a large amount of the investments <strong>to increasing electric flexibility<\/strong>: studies of new hydroelectricity capacities, hybrid batteries for hydropower plants, optimisation of forebay levels and the development of small STEPs.<\/p>\n<p>It also supports the <strong>development of modal transfer between rail and river<\/strong>, in particular via a logistic interconnection project at Loire-sur-Rh\u00f4ne.<\/p>\n<p>Lastly, an agricultural and territorial section assists the modernisation of the <strong>irrigation network, sustainable water management and the exploitation of land earmarked for industrial and logistic use<\/strong>.<\/p>\n<p>The projects not chosen will be re-examined in the framework of five year programmes: \u00a05Rh\u00f4ne Plans.<\/p>\n\n                                                                                                                                    <\/div>\n                            <div class=\"as--column__item editor-wysiwyg h-align-left\">\n                                                                                                                                        <div class=\"editor-img as--rounded\">\n                                    <picture>\n                                        <img decoding=\"async\" src=\"https:\/\/www.cnr.tm.fr\/app\/uploads\/2025\/12\/CNR_Plans_5Rhone_irrigation_agriculture_durable-450x450.jpg\" alt=\"\">\n                                    <\/picture>\n                                <\/div>\n                                                                                                                                    <\/div>\n                    <\/div>\n    <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":13,"featured_media":0,"parent":38207,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-38143","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>CNR 2041 Investment Plan: Transforming the Rhone Valley | CNR<\/title>\n<meta name=\"description\" content=\"Discover CNR\u2019s \u20ac500M works programme up to 2041. 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