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class="search-submit">Rechercher</button></form></div></div></div></div><div class="cspt-title-bar-wrapper cspt-bg-color-transparent cspt-bg-image-yes"><div class="container"><div class="cspt-title-bar-content"><div class="cspt-title-bar-content-inner"><div class="cspt-tbar"><div class="cspt-tbar-inner container"><h1 class="cspt-tbar-title"> Photovoltaics energy</h1></div></div><div class="cspt-breadcrumb"><div class="cspt-breadcrumb-inner"><span><a title="Go to UNITe." href="https://unit-e.fr" class="home"><span>UNITe</span></a></span> > <span><span class="post post-page current-item">Photovoltaics energy</span></span></div></div></div></div></div></div></header><div class="site-content-contain"><div id="content" class="site-content container"><div id="primary" class="content-area "><main id="main" class="site-main cspt-page-content-wrapper"><article id="post-20826" class="post-20826 page type-page status-publish hentry"><div class="entry-content"><div data-elementor-type="wp-page" data-elementor-id="20826" class="elementor elementor-20826" data-elementor-post-type="page"><section class="elementor-section elementor-top-section elementor-element elementor-element-4093a11f cspt-col-stretched-none cspt-bg-color-over-image elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-columns-alignment-fix-enabled" data-id="4093a11f" data-element_type="section"><div class="elementor-container elementor-column-gap-default"><div class="elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-233ab7be cspt-bg-color-over-image" data-id="233ab7be" data-element_type="column"><div class="elementor-widget-wrap elementor-element-populated"><div class="elementor-element elementor-element-55eb690a elementor-widget elementor-widget-heading" data-id="55eb690a" data-element_type="widget" data-widget_type="heading.default"><div class="elementor-widget-container"><h2 class="elementor-heading-title elementor-size-default">History of photovoltaics</h2></div></div><div class="elementor-element elementor-element-4d305c15 elementor-widget elementor-widget-text-editor" data-id="4d305c15" data-element_type="widget" data-widget_type="text-editor.default"><div class="elementor-widget-container"><p>The first uses of solar power date back to ancient times. Sets of mirrors were used to harness the sun’s power to set fire to or melt things.</p><p>The photovoltaic effect was discovered in the mid-19<sup>th</sup> century but it was not put to use until 1916 when the first photovoltaic cell was created. Even then, the low yields observed made industrialisation unfeasible.</p><p>In fact, it was the conquest of space around the 1950s that enabled the development of this technology in order to make the shuttles launched into space independent. In 1958, the first satellite with a photovoltaic panel was sent into space.</p></div></div></div></div></div></section><section class="elementor-section elementor-top-section elementor-element elementor-element-60d56b0d cspt-col-stretched-none cspt-bg-color-over-image elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-columns-alignment-fix-enabled" data-id="60d56b0d" data-element_type="section"><div class="elementor-container elementor-column-gap-wider"><div class="elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-448b0e5a cspt-bg-color-over-image" data-id="448b0e5a" data-element_type="column"><div class="elementor-widget-wrap elementor-element-populated"><div class="elementor-element elementor-element-3842a66c elementor-widget elementor-widget-image" data-id="3842a66c" data-element_type="widget" data-widget_type="image.default"><div class="elementor-widget-container"> <a href="https://unit-e.fr/wp-content/uploads/2021/02/schema-principe-de-la-cellule-photovoltaique.png" data-elementor-open-lightbox="yes" data-e-action-hash="#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTk0NTYsInVybCI6Imh0dHBzOlwvXC91bml0LWUuZnJcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjFcLzAyXC9zY2hlbWEtcHJpbmNpcGUtZGUtbGEtY2VsbHVsZS1waG90b3ZvbHRhaXF1ZS5wbmcifQ%3D%3D"> <img data-lazyloaded="1" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAwIiBoZWlnaHQ9IjgxMSIgdmlld0JveD0iMCAwIDEwMDAgODExIj48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBzdHlsZT0iZmlsbDojY2ZkNGRiO2ZpbGwtb3BhY2l0eTogMC4xOyIvPjwvc3ZnPg==" fetchpriority="high" decoding="async" width="1000" height="811" data-src="https://unit-e.fr/wp-content/uploads/2021/02/schema-principe-de-la-cellule-photovoltaique.png" class="attachment-full size-full wp-image-19456" alt="Schéma principe de la cellule photovoltaïque" data-srcset="https://unit-e.fr/wp-content/uploads/2021/02/schema-principe-de-la-cellule-photovoltaique.png 1000w, https://unit-e.fr/wp-content/uploads/2021/02/schema-principe-de-la-cellule-photovoltaique-300x243.png 300w, https://unit-e.fr/wp-content/uploads/2021/02/schema-principe-de-la-cellule-photovoltaique-768x623.png 768w, https://unit-e.fr/wp-content/uploads/2021/02/schema-principe-de-la-cellule-photovoltaique-770x624.png 770w" data-sizes="(max-width: 1000px) 100vw, 1000px" /> </a></div></div></div></div><div class="elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1253cb50 cspt-bg-color-over-image" data-id="1253cb50" data-element_type="column"><div class="elementor-widget-wrap elementor-element-populated"><div class="elementor-element elementor-element-552de584 elementor-widget elementor-widget-text-editor" data-id="552de584" data-element_type="widget" data-widget_type="text-editor.default"><div class="elementor-widget-container"><h3>The principle:</h3><p>A photovoltaic cell consists of two silicon wafers, one doped with phosphorous which contains more electrons than silicon, and the other doped with boron, which contains fewer. This wafer assembly can then be incorporated into a battery which creates a magnetic field.</p><p>With sunlight, the photons extract electrons from the silicon which then migrate to the negative terminal of the battery. This creates an electric current.</p></div></div></div></div></div></section><section class="elementor-section elementor-top-section elementor-element elementor-element-bf0648f cspt-col-stretched-none cspt-bg-color-over-image elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-columns-alignment-fix-enabled" data-id="bf0648f" data-element_type="section"><div class="elementor-container elementor-column-gap-wider"><div class="elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-bf5e02f cspt-bg-color-over-image" data-id="bf5e02f" data-element_type="column"><div class="elementor-widget-wrap elementor-element-populated"><div class="elementor-element elementor-element-e20c349 elementor-widget elementor-widget-text-editor" data-id="e20c349" data-element_type="widget" data-widget_type="text-editor.default"><div class="elementor-widget-container"><h4>Photovoltaic power plants are made up of:</h4><ul><li><span style="letter-spacing: 0px;">Photovoltaic panels which produce current when exposed to light.</span></li><li><span style="letter-spacing: 0px;">An inverter, which converts the direct current into alternating current.</span></li><li><span style="letter-spacing: 0px;">A transformer, which increases the voltage to that of the distribution grid.</span></li></ul></div></div><div class="elementor-element elementor-element-d6642e4 elementor-widget elementor-widget-text-editor" data-id="d6642e4" data-element_type="widget" data-widget_type="text-editor.default"><div class="elementor-widget-container"><p>Solar power is the most abundant renewable energy on earth, and the fastest to deploy. It is also the one for which technological innovation has been the most concentrated and which has seen, in recent years, the greatest productivity gains, making these facilities now highly competitive.</p></div></div></div></div><div class="elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7638053 cspt-bg-color-over-image" data-id="7638053" data-element_type="column"><div class="elementor-widget-wrap elementor-element-populated"><div class="elementor-element elementor-element-4fd15ee elementor-widget elementor-widget-image" data-id="4fd15ee" data-element_type="widget" data-widget_type="image.default"><div class="elementor-widget-container"> <a href="https://unit-e.fr/wp-content/uploads/2021/02/schema-installation-photovoltaique.png" data-elementor-open-lightbox="yes" data-e-action-hash="#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTk0NjIsInVybCI6Imh0dHBzOlwvXC91bml0LWUuZnJcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjFcLzAyXC9zY2hlbWEtaW5zdGFsbGF0aW9uLXBob3Rvdm9sdGFpcXVlLnBuZyJ9"> <img data-lazyloaded="1" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAwIiBoZWlnaHQ9IjUwMCIgdmlld0JveD0iMCAwIDEwMDAgNTAwIj48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBzdHlsZT0iZmlsbDojY2ZkNGRiO2ZpbGwtb3BhY2l0eTogMC4xOyIvPjwvc3ZnPg==" loading="lazy" decoding="async" width="1000" height="500" data-src="https://unit-e.fr/wp-content/uploads/2021/02/schema-installation-photovoltaique.png" class="attachment-full size-full wp-image-19462" alt="Schéma installation photovoltaïque" data-srcset="https://unit-e.fr/wp-content/uploads/2021/02/schema-installation-photovoltaique.png 1000w, https://unit-e.fr/wp-content/uploads/2021/02/schema-installation-photovoltaique-300x150.png 300w, https://unit-e.fr/wp-content/uploads/2021/02/schema-installation-photovoltaique-768x384.png 768w, https://unit-e.fr/wp-content/uploads/2021/02/schema-installation-photovoltaique-770x385.png 770w" data-sizes="(max-width: 1000px) 100vw, 1000px" /> </a></div></div></div></div></div></section><section class="elementor-section elementor-top-section elementor-element elementor-element-f37e21f cspt-col-stretched-none cspt-bg-color-over-image elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-columns-alignment-fix-enabled" data-id="f37e21f" data-element_type="section" data-settings="{"background_background":"classic"}"><div class="elementor-container elementor-column-gap-default"><div class="elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-64fa5787 cspt-bg-color-over-image" data-id="64fa5787" data-element_type="column" data-settings="{"background_background":"classic"}"><div class="elementor-widget-wrap elementor-element-populated"><div class="elementor-element elementor-element-510a875b elementor-widget elementor-widget-heading" data-id="510a875b" data-element_type="widget" data-widget_type="heading.default"><div class="elementor-widget-container"><h3 class="elementor-heading-title elementor-size-default">In figures</h3></div></div><div class="elementor-element elementor-element-4891f3f3 elementor-widget elementor-widget-text-editor" data-id="4891f3f3" data-element_type="widget" data-widget_type="text-editor.default"><div class="elementor-widget-container"><p>In 2024, electricity production from photovoltaic solar energy will amount to 24.5 TWh. Excluding self-consumption, this will account for 5.2% of French electricity consumption over the same period.</p><p><span data-olk-copy-source="MessageBody">The objectives of the PPE (Pluriannual Energy Programme) are to double photovoltaic capacity by 2028.</span></p></div></div></div></div></div></section><section class="elementor-section elementor-top-section elementor-element elementor-element-4bc4d52 cspt-bg-color-yes cspt-elementor-bg-color-globalcolor cspt-text-color-white elementor-section-content-middle cspt-col-stretched-none cspt-bg-color-over-image elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-columns-alignment-fix-enabled" data-id="4bc4d52" data-element_type="section" data-settings="{"background_background":"classic"}"><div class="elementor-container elementor-column-gap-default"><div class="elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-0599ed3 cspt-bg-color-over-image" data-id="0599ed3" data-element_type="column"><div class="elementor-widget-wrap elementor-element-populated"><div class="elementor-element elementor-element-2d44e86 elementor-widget elementor-widget-heading" data-id="2d44e86" data-element_type="widget" data-widget_type="heading.default"><div class="elementor-widget-container"><h3 class="elementor-heading-title elementor-size-medium">ARE YOU A PROPERTY OWNER OR FARM OPERATOR?</h3></div></div><div class="elementor-element elementor-element-005de90 elementor-widget elementor-widget-text-editor" data-id="005de90" data-element_type="widget" data-widget_type="text-editor.default"><div class="elementor-widget-container"><p>UNITe provides the opportunity to increase the value of land (from 5 ha) by installing photovoltaic solar power plants on it. By renting your land to us, you will enjoy regular, guaranteed income for 30 years and play a part in the energy transition. We are flexible and we can adapt to your specific needs.</p></div></div></div></div><div class="elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-ebf29bd cspt-bg-color-over-image" data-id="ebf29bd" data-element_type="column"><div class="elementor-widget-wrap elementor-element-populated"><div class="elementor-element elementor-element-853b00b cspt-btn-shape-round elementor-align-center cspt-btn-color-white cspt-btn-style-flat elementor-widget elementor-widget-button" data-id="853b00b" data-element_type="widget" data-widget_type="button.default"><div class="elementor-widget-container"><div class="elementor-button-wrapper"> <a class="elementor-button elementor-button-link elementor-size-md" href="https://unit-e.fr/contact/proprietaire-foncier-ou-exploitant-agricole/"> <span class="elementor-button-content-wrapper"> <span class="elementor-button-text">LET’S TALK: <br>CONTACT US!</span> </span> </a></div></div></div></div></div></div></section></div></div></article></main></div></div><footer id="colophon" class="site-footer cspt-color-white cspt-bg-color-blackish cspt-footer-menu-no"><div class="footer-wrap cspt-footer-widget-area cspt-bg-color-custom"><div class="container"><div class="row"><div class="cspt-footer-widget cspt-footer-widget-col-1 col-md-6 col-lg-3"><aside id="media_image-2" class="widget widget_media_image"><a href="https://unit-e.fr/"><img data-lazyloaded="1" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNTAiIGhlaWdodD0iMTg1IiB2aWV3Qm94PSIwIDAgMjUwIDE4NSI+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgc3R5bGU9ImZpbGw6I2NmZDRkYjtmaWxsLW9wYWNpdHk6IDAuMTsiLz48L3N2Zz4=" width="250" height="185" data-src="https://unit-e.fr/wp-content/uploads/2021/01/logo-unite-blanc-et-vert.png" class="image wp-image-19280 attachment-250x185 size-250x185" alt="UNITe" style="max-width: 100%; height: auto;" decoding="async" /></a></aside><aside id="media_image-5" class="widget widget_media_image"><a href="https://unit-e.fr/bpi-nous-fait-lhonneur-de-labelliser-le-groupe-unite-2/"><img data-lazyloaded="1" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNTAiIGhlaWdodD0iMTUwIiB2aWV3Qm94PSIwIDAgMTUwIDE1MCI+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgc3R5bGU9ImZpbGw6I2NmZDRkYjtmaWxsLW9wYWNpdHk6IDAuMTsiLz48L3N2Zz4=" width="150" height="150" data-src="https://unit-e.fr/wp-content/uploads/2022/06/coq_vert_rvb-150x150.png" class="image wp-image-22439 imglogo attachment-thumbnail size-thumbnail" alt="Coq vert rvb" style="max-width: 100%; height: auto;" decoding="async" data-srcset="https://unit-e.fr/wp-content/uploads/2022/06/coq_vert_rvb-150x150.png 150w, https://unit-e.fr/wp-content/uploads/2022/06/coq_vert_rvb-300x300.png 300w, https://unit-e.fr/wp-content/uploads/2022/06/coq_vert_rvb-768x768.png 768w, https://unit-e.fr/wp-content/uploads/2022/06/coq_vert_rvb-770x770.png 770w, https://unit-e.fr/wp-content/uploads/2022/06/coq_vert_rvb.png 851w" data-sizes="(max-width: 150px) 100vw, 150px" /></a></aside><aside id="media_image-6" class="widget widget_media_image"><a href="https://unit-e.fr/bpi-nous-fait-lhonneur-de-labelliser-le-groupe-unite/"><img data-lazyloaded="1" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMjkiIGhlaWdodD0iMzAwIiB2aWV3Qm94PSIwIDAgMjI5IDMwMCI+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgc3R5bGU9ImZpbGw6I2NmZDRkYjtmaWxsLW9wYWNpdHk6IDAuMTsiLz48L3N2Zz4=" width="229" height="300" data-src="https://unit-e.fr/wp-content/uploads/2022/06/les_excellence_logotype_jaune-229x300.png" class="image wp-image-22438 imglogo attachment-medium size-medium" alt="Les excellence logotype jaune" style="max-width: 100%; height: auto;" decoding="async" data-srcset="https://unit-e.fr/wp-content/uploads/2022/06/les_excellence_logotype_jaune-229x300.png 229w, https://unit-e.fr/wp-content/uploads/2022/06/les_excellence_logotype_jaune-e1656061306392.png 150w" data-sizes="(max-width: 229px) 100vw, 229px" /></a></aside></div><div class="cspt-footer-widget cspt-footer-widget-col-2 col-md-6 col-lg-3"><aside id="text-4" class="widget widget_text"><h2 class="widget-title">Local, sustainable and competitive electricity producer</h2><div class="textwidget"><p>For nearly 40 years, the unit group has strived to combine energy needs and respect for the environment. Unit is now one of the leading independent producers of carbon-free, local, sustainable and competitive electricity, with more than 60 production sites (hydroelectric, wind and photovoltaic). With its subsidiary GREEN-ACCESS, the group is also a leader in energy recovery, notably through the sale of Guarantees of Origin and the negotiation of contracts for the direct supply of renewable electricity to industrial consumers.</p><p>UNITe is an independent, agile, financially strong group, rooted in the territories, with recognized skills in the renewable energy sector. Led by Alexandre ALBANEL and Stéphane MAUREAU, the group is currently conducting a very sustained growth phase.</p><p>UNITe is one of the few companies still regularly building hydroelectric power plants in France. In addition, the company leases long-term (35 years or more) numerous plots of land in France to develop high-power photovoltaic installations, often in synergy with agricultural activity.</p><p>* Head office in Lyon: 139 rue Vendôme – CS 40394 – 69477 LYON Cedex 06 – France<br /> * Hydrowatt Workshop Saint-Girons: Mandete 09200 Saint Girons – France<br /> * Paris Agency: <span data-olk-copy-source="MessageBody">32 rue de Trévise, 75009 Paris – France</span><br /> * Nantes Agency: Impasse du Petit Chatelier 44300 Nantes – France<br /> * Grenoble Branch: 1 Avenue d’Innsbruck 38000 Grenoble – France</p></div></aside></div></div></div></div><div class="cspt-footer-text-area cspt-bg-color-globalcolor"><div class="container"><div class="row"><div class="cspt-footer-copyright col-md-6"><div class="cspt-footer-copyright-text-area"><p><span class="texte-fr"> © 2020 Tous droits réservés | <a href="/mentions-legales">Mentions légales</a> | <a href="https://unit-e.fr/plan-du-site/">Plan du 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