{"id":138691,"date":"2021-11-23T09:30:50","date_gmt":"2021-11-23T08:30:50","guid":{"rendered":"https:\/\/sma-sunny.com\/?p=138691"},"modified":"2022-07-20T10:30:21","modified_gmt":"2022-07-20T08:30:21","slug":"how-the-modernizing-of-your-pv-power-plant-pays-off","status":"publish","type":"post","link":"https:\/\/www.sma-sunny.com\/en\/how-the-modernizing-of-your-pv-power-plant-pays-off\/","title":{"rendered":"How modernizing your PV power plant pays off"},"content":{"rendered":"<p><strong>When the inverter\u2019s service life suddenly came to an end, low performance was threatening the profitability of Guntram Grieseler\u2019s solar power plant. He decided to modernize his plant with innovative SMA string inverter technology. As a result, Guntram Grieseler\u2019s plant is now producing even more energy than before. Here\u2019s how it was done.<\/strong><\/p>\n<p>Project owner Guntram Grieseler has been operating the\u00a0Saint Guillaume solar power plant\u00a0in the French community of\u00a0L\u00fce since 2011.<\/p>\n<p>With an output of 2.9 megawatts peak, the power plant supplies solar power for 1,000 households.<br \/>\nThe\u00a0L\u00fce\u00a0solar farm sustainably blends into its surroundings, as\u00a0the PV modules are placed on the roofs of greenhouses where a local organic farmer\u00a0grows his vegetables.\u00a0Solar energy here allows a double harvest from the same area.<\/p>\n<p>When\u00a0the inverters\u2019\u00a0service life\u00a0suddenly\u00a0came to an end, low performance\u00a0was\u00a0threatening the asset\u00b4s profitability \u2013 so\u00a0Grieseler decided to modernize his plant with innovative inverter technology.<\/p>\n<p>&nbsp;<\/p>\n<blockquote><p><strong>\u201cWith its broad portfolio,\u00a0SMA made it possible to offer our customer a tailor-made solution.\u201d\u00a0<\/strong><\/p>\n<p style=\"text-align: right;\">Gerald Claus, E+WS Energie + Wasser Service GmbH<\/p>\n<\/blockquote>\n<h2>Modernizing needs to be economically and ecologically efficient<\/h2>\n<p>To\u00a0ensure that\u00a0the repowering project\u00a0would be\u00a0both economically and ecologically efficient, the SMA Repowering Team professionally analyzed\u00a0the existing infrastructure.\u00a0The challenge of replacing equipment in existing projects is to ensure that the new equipment can be easily and optimally integrated into the existing infrastructure. The cost-benefit ratio must be in balance.<\/p>\n<div class=\"lyte-wrapper\" title=\"Modernizing an existing PV plant with new string inverter technology\" style=\"width:1280px;max-width:100%;margin:5px;\"><div class=\"lyMe hidef\" id=\"WYL_EZIFuuWTRAc\" itemprop=\"video\" itemscope itemtype=\"https:\/\/schema.org\/VideoObject\"><div><meta itemprop=\"thumbnailUrl\" content=\"https:\/\/i.ytimg.com\/vi\/EZIFuuWTRAc\/maxresdefault.jpg\" \/><meta itemprop=\"embedURL\" content=\"https:\/\/www.youtube.com\/embed\/EZIFuuWTRAc\" \/><meta itemprop=\"duration\" content=\"PT3M3S\" \/><meta itemprop=\"uploadDate\" content=\"2021-12-12T22:25:38Z\" \/><\/div><meta itemprop=\"accessibilityFeature\" content=\"captions\" \/><div id=\"lyte_EZIFuuWTRAc\" data-src=\"https:\/\/i.ytimg.com\/vi\/EZIFuuWTRAc\/maxresdefault.jpg\" class=\"pL\"><div class=\"tC\"><div class=\"tT\" itemprop=\"name\">Modernizing an existing PV plant with new string inverter technology<\/div><\/div><div class=\"play\"><\/div><div class=\"ctrl\"><div class=\"Lctrl\"><\/div><div class=\"Rctrl\"><\/div><\/div><\/div><noscript><a href=\"https:\/\/youtu.be\/EZIFuuWTRAc\" rel=\"nofollow\"><img decoding=\"async\" src=\"https:\/\/i.ytimg.com\/vi\/EZIFuuWTRAc\/0.jpg\" alt=\"Modernizing an existing PV plant with new string inverter technology\" width=\"1280\" height=\"700\" \/><br \/>Watch this video on YouTube<\/a><\/noscript><meta itemprop=\"description\" content=\"When the inverter\u2019s service life suddenly came to an end, low performance was threatening the profitability of Guntram Grieseler\u2019s PV plant \u2013 so he decided to modernize his plant with innovative SMA string inverter technology. In this video we show how his PV plant is now producing even more energy than before. #smasolartechnologyag #PV #repowering ----- SMA Solar Technology AG - https:\/\/www.sma.de\/en\/ SMA Corporate Blog - https:\/\/www.sma-sunny.com\/ SMA on Facebook - https:\/\/www.facebook.com\/SMAInternati... SMA on Instagram - https:\/\/www.instagram.com\/sma.solar\/ SMA on Twitter - https:\/\/twitter.com\/SMAsolar Contact - SocialMedia@SMA.de As a leading global specialist in photovoltaic system technology, SMA offers a wide range of efficient PV inverters, holistic system solutions for PV systems of all power classes, intelligent energy management systems and battery-storage solutions as well as complete solutions for PV diesel hybrid applications. Digital energy services and extensive services up to and including operation and maintenance services for PV power plants round off SMA\u2019s range. SMA inverters with a total output of around 75 gigawatts have been installed in more than 190 countries worldwide.\"><\/div><\/div><div class=\"lL\" style=\"max-width:100%;width:1280px;margin:5px;\"><\/div><\/p>\n<p>SMA Repowering Team found <a href=\"https:\/\/www.sma.de\/en\/products\/solarinverters\/sunny-highpower-peak3.html\" target=\"_blank\" rel=\"noopener\">Sunny Highpower PEAK3<\/a> inverter would best meet Grieseler\u2019s needs and could be optimally integrated into the centralized system layout.<\/p>\n<p>An advantage not only during the coronavirus pandemic: The inverter provides optimal performance at a light weight. It is cheap to transport and the PV professional can install it in a one-man show. This reduces the PV plant\u2019s downtime and significantly minimizes revenue losses.<\/p>\n<p>Thanks to\u00a0the repowering,\u00a0the plant is now producing even\u00a0more energy than it\u00a0did\u00a0before.<\/p>\n<p>&nbsp;<\/p>\n<blockquote><p><strong>\u201cWe\u00b4ve repowered the inverters very efficiently within only two weeks. Thanks to the SMA inverter Sunny Highpower PEAK3, we could reuse all our cabling and the existing plant solutions. This was a great benefit.\u201d<\/strong><\/p>\n<p style=\"text-align: right;\">Guntram Grieseler, Gesch\u00e4ftsf\u00fchrer, Leonidas Optima GmbH<\/p>\n<\/blockquote>\n<p>&nbsp;<\/p>\n<div  class='av_promobox av-av_promobox-6bdac236d5de4b527c724c6f30d180fb avia-button-no  avia-builder-el-0  avia-builder-el-no-sibling '><div class='avia-promocontent'><h2>\u201eHigher yields, better service\u201c<\/h2>\n<p>When is it worth upgrading a system, and what are the most important things to bear in mind? We put these questions to Tobias Probandt, Key Account Manager, and Christopher Merz, System Development Engineer at SMA.<\/p>\n<p><strong>How can the system operator see that it is time to upgrade the system?<\/strong><\/p>\n<p><img decoding=\"async\" class=\"wp-image-138739 size-medium alignright lazyload\" data-src=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/Tobias-Probandt-2-262x395.jpg\" alt=\"\" width=\"262\" height=\"395\" data-srcset=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/Tobias-Probandt-2-262x395.jpg 262w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/Tobias-Probandt-2.jpg 318w\" data-sizes=\"(max-width: 262px) 100vw, 262px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 262px; --smush-placeholder-aspect-ratio: 262\/395;\" \/><\/p>\n<p><strong>Tobias Probandt:<\/strong> There are various reasons for repowering. The system or some of its components may be defective; it might be falling short of its target power values; or it might no longer meet current technical requirements. It may also be the case that certain parts \u2013 or the system itself \u2013 were not installed properly or that original spare parts are no longer available. The devices fail increasingly often, affecting system availability. This has a direct impact on energy yields and thus on system amortization. The best thing that operators can do is to ensure reserves for this from the very beginning. Then you just need a little of courage to make the change. But you can be sure it will pay off.<\/p>\n<p><strong>How do repowering measures in decentralized system structures differ from those in centralized system structures?<\/strong><\/p>\n<p><strong>Christopher Merz:<\/strong> Decentralized systems are usually equipped with string inverters of &lt; 100 kW, which are distributed throughout the entire PV system. The strings are connected to the inverters individually, and the default AC voltage is 400 V or 480 V. Devices can often be replaced in a straightforward, one-to-one swap. If the on-site conditions permit, a more powerful inverter can also be installed to replace multiple existing devices. One 50 kW device, for example, could replace five 10 kW devices. The main challenge is thus rather upgrading system communication because old devices often use communication standards that are outdated. This is why it is important to plan repowering measures with the utmost care and precision.<\/p>\n<p>When it comes to repowering centralized systems, the challenges relate to the electrical compatibility of the components with one another and also mechanical integration into the existing inverter station. It should always be ensured that as many components as possible \u2013 DC main cables, medium-voltage transformers, switchgears, etc. \u2013 can be reused. A lot of parameters need to be coordinated. PV modules can be grounded or ungrounded; DC voltages range from 600 V to 1500 V; and there is a variety of transformer types and AC voltage levels. Therefore, SMA replacement inverters are usually customized. <a href=\"https:\/\/www.sma.de\/en\/products\/solarinverters.html\" target=\"_blank\" rel=\"noopener\">Whether Sunny Central central inverters or string inverters like Sunny Highpower PEAK3<\/a>, our customers take delivery of a device that is perfectly tailored to their specific application.<\/p>\n<p><strong>What specific aspects did you need to take into account in the Lue project?<\/strong><\/p>\n<p><div id=\"attachment_138614\" style=\"width: 290px\" class=\"wp-caption alignright\"><img decoding=\"async\" aria-describedby=\"caption-attachment-138614\" class=\"wp-image-138614 lazyload\" data-src=\"https:\/\/sma-sunny.com\/wp-content\/uploads\/2021\/11\/Christopher-Merz-1.jpg\" alt=\"SMA Christopher Merz\" width=\"280\" height=\"411\" data-srcset=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/Christopher-Merz-1.jpg 373w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/Christopher-Merz-1-262x385.jpg 262w\" data-sizes=\"(max-width: 280px) 100vw, 280px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 280px; --smush-placeholder-aspect-ratio: 280\/411;\" \/><p id=\"caption-attachment-138614\" class=\"wp-caption-text\">Christopher Merz<\/p><\/div><\/p>\n<p><strong>Christopher Merz:<\/strong> The most important thing was to retain the centralized system structure in Lue. It was also important to continue using the existing medium-voltage transformers. Thanks to the flexibility of the Sunny Highpower PEAK3, we had no problem meeting all these requirements. Two existing DC main cables were connected to each inverter. The AC voltage was parameterized to 340\u00a0V\u00a0AC, allowing continued use of the medium-voltage transformers.<\/p>\n<p><strong>What are the benefits of repowering with string inverters?<\/strong><\/p>\n<p><strong>Christopher Merz:<\/strong> The string inverter Sunny Highpower PEAK3 combines the benefits of a relatively small power class with those of a centralized system structure. The compact device simplifies delivery and on-site installation. Since only a part of the PV generator is connected to each inverter, generator faults (e.g., insulation errors) have much less impact on system yield and can be more easily localized. However, as the centralized system structure is retained, structural alterations are needed only in the immediate vicinity of the existing inverter station. The wiring to and from the station on the DC and AC sides can be left as it is.<\/p>\n<p><strong>Tobias Probandt:<\/strong> With our powerful inverters Sunny Highpower PEAK3 and <a href=\"https:\/\/www.sma.de\/en\/products\/solarinverters\/sunny-tripower-core2.html\" target=\"_blank\" rel=\"noopener\">Sunny Tripower CORE2<\/a> we offer outstanding quality and flexibility at highly competitive prices. New components also enable higher efficiency. Optimizing your PV system will help you to maximize yields over the long term and ensure a long service life. You will get new warranty periods and avoid expensive servicing. You will also benefit from new features like remote monitoring and data visualization.<\/p>\n<\/div><\/div>\n<p>&nbsp;<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 16%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-138691 gallery-columns-6 gallery-size-square'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2864_edit-1.jpg'><img decoding=\"async\" width=\"180\" height=\"180\" data-src=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2864_edit-1-600x600.jpg\" class=\"attachment-square size-square lazyload\" alt=\"\" data-srcset=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2864_edit-1-600x600.jpg 600w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2864_edit-1-75x75.jpg 75w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2864_edit-1-36x36.jpg 36w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2864_edit-1-120x120.jpg 120w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2864_edit-1-450x450.jpg 450w\" data-sizes=\"(max-width: 180px) 100vw, 180px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 180px; --smush-placeholder-aspect-ratio: 180\/180;\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2671_edit.jpg'><img decoding=\"async\" width=\"180\" height=\"180\" data-src=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2671_edit-600x600.jpg\" class=\"attachment-square size-square lazyload\" alt=\"\" data-srcset=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2671_edit-600x600.jpg 600w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2671_edit-75x75.jpg 75w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2671_edit-36x36.jpg 36w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2671_edit-120x120.jpg 120w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/NKN_2671_edit-450x450.jpg 450w\" data-sizes=\"(max-width: 180px) 100vw, 180px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 180px; --smush-placeholder-aspect-ratio: 180\/180;\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2804_edit-1.jpg'><img decoding=\"async\" width=\"180\" height=\"180\" data-src=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2804_edit-1-600x600.jpg\" class=\"attachment-square size-square lazyload\" alt=\"\" data-srcset=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2804_edit-1-600x600.jpg 600w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2804_edit-1-75x75.jpg 75w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2804_edit-1-36x36.jpg 36w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2804_edit-1-120x120.jpg 120w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2804_edit-1-450x450.jpg 450w\" data-sizes=\"(max-width: 180px) 100vw, 180px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 180px; --smush-placeholder-aspect-ratio: 180\/180;\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2722_edit-1.jpg'><img decoding=\"async\" width=\"180\" height=\"180\" data-src=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2722_edit-1-600x600.jpg\" class=\"attachment-square size-square lazyload\" alt=\"\" data-srcset=\"https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2722_edit-1-600x600.jpg 600w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2722_edit-1-75x75.jpg 75w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2722_edit-1-36x36.jpg 36w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2722_edit-1-120x120.jpg 120w, https:\/\/www.sma-sunny.com\/wp-content\/uploads\/2021\/11\/DSC_2722_edit-1-450x450.jpg 450w\" data-sizes=\"(max-width: 180px) 100vw, 180px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 180px; --smush-placeholder-aspect-ratio: 180\/180;\" \/><\/a>\n\t\t\t<\/dt><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<p>&nbsp;<\/p>\n<p>Are you interested in finding out whether it\u2019s worth upgrading your system and what are the benefits?<\/p>\n<p><a style=\"background-color: #e2001a; border-color: #e2001a; color: #ffffff !important; border-radius: 3px; padding: 10px; text-decoration: none !important; display: inline-block;\" href=\"https:\/\/www.sma.de\/en\/repowering-utility.html\" target=\"_blank\" rel=\"noopener\">Repowering for PV power plants<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><em>For further questions send an e-mail to <a href=\"mailto:Repowering@SMA.de\" target=\"_blank\" rel=\"noopener\">Repowering@SMA.de<\/a> or fill out the contact form on the website.<\/em><\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;138691&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;3&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;4&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;1&quot;,&quot;greet&quot;:&quot;&quot;,&quot;legend&quot;:&quot;4\\\/5 - (3 votes)&quot;,&quot;size&quot;:&quot;22&quot;,&quot;title&quot;:&quot;How modernizing your PV power plant pays off&quot;,&quot;width&quot;:&quot;91.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 91.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 1px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 17.6px;\">\n            4\/5 - (3 votes)    <\/div>\n    <\/div>\n<div class='printomatic pom-default ' id='id8581'  data-print_target='article'><\/div>","protected":false},"excerpt":{"rendered":"<p>When the inverter\u2019s service life suddenly came to an end, low performance was threatening the profitability of Guntram Grieseler\u2019s solar power plant. He decided to modernize his plant with innovative SMA string inverter technology. As a result, Guntram Grieseler\u2019s plant is now producing even more energy than before. Here\u2019s how it was done.<\/p>\n","protected":false},"author":20,"featured_media":138654,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[58],"tags":[883],"class_list":["post-138691","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions","tag-references-en-2"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How modernizing your PV power plant pays off - Sunny. SMA Corporate Blog<\/title>\n<meta name=\"description\" content=\"Guntram Grieseler\u2019s modernized his PV power plant with innovative SMA string inverter technology. 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