{"id":7338,"date":"2022-04-06T15:05:24","date_gmt":"2022-04-06T13:05:24","guid":{"rendered":"https:\/\/sonnenallee.sma.de\/?p=7338"},"modified":"2022-11-22T10:45:30","modified_gmt":"2022-11-22T09:45:30","slug":"new-start-for-the-pv-pioneers","status":"publish","type":"post","link":"https:\/\/sonnenallee.sma.de\/en\/solar-energy\/new-start-for-the-pv-pioneers\/","title":{"rendered":"New Start for the PV Pioneers"},"content":{"rendered":"<header class=\"swe-post-header swe-post-header-image-right\"><div class=\"info\"><h1 itemprop=\"headline\">New Start for the PV Pioneers<\/h1><div class=\"subtitle\">Repowering: the opportunities after subsidies<\/div><div class=\"blog-tags\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/tag\/solar-energy\/\" rel=\"tag\" class=\"tag\">#Solar energy<\/a><\/div><div class=\"boxes\"><div class=\"wpulike sonnenallee-display wp_ulike_general_class\"><div class=\"grid\"><div class=\"count-box\"><span class=\"count-box\">4<\/span><\/div><div class=\"symbol\"><\/div><\/div><\/div><div class=\"time\">7 Min.<\/div><\/div><\/div><div class=\"preview\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2022\/03\/1205x636_Header_Repowering.jpg\"\/><div class=\"boxes callout\"><button class=\"share\">Share<\/button>    <div class=\"wpulike  sonnenallee-interactive\"><div class=\"wp_ulike_general_class wp_ulike_is_not_liked\"><button type=\"button\"\n                    data-ulike-id=\"7338\"\n                    data-ulike-nonce=\"119b53ae69\"\n                    data-ulike-type=\"post\"\n                    data-ulike-template=\"sonnenallee-interactive\"\n                    data-ulike-display-likers=\"0\"\n                    data-ulike-likers-style=\"popover\"\n                    class=\"wp_ulike_btn wp_ulike_put_text wp_post_btn_7338\"><span>Like<\/span>            <\/button><\/div><\/div>\n\t<\/div><div class=\"av-share-box hidden callout\"><div class=\"share-content\"><span class=\"close\"><img decoding=\"async\" src=\"\/wp-content\/themes\/enfold-child_sonnenallee\/images\/icons\/kreuz-dunkel.svg\"\/><\/span><h1>Share article<\/h1><h2>How do you want to share the article?<\/h2><ul class=\"av-share-box-list noLightbox\"><li class=\"av-share-link av-social-link-mail\"><a aria-label=\"mail\" href=\"mailto:?body=https%3A%2F%2Fsonnenallee.sma.de%2Fen%2Fsolar-energy%2Fnew-start-for-the-pv-pioneers%2F&amp;subject=New%20Start%20for%20the%20PV%20Pioneers\" title target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/themes\/enfold-child_sonnenallee\/images\/mail.png\"\/><span class=\"avia_hidden_link_text\">mail<\/span><\/a><\/li><li class=\"av-share-link av-social-link-facebook\"><a aria-label=\"Facebook\" href=\"https:\/\/www.facebook.com\/sharer.php?u=https%3A%2F%2Fsonnenallee.sma.de%2Fen%2Fsolar-energy%2Fnew-start-for-the-pv-pioneers%2F&amp;t=New%20Start%20for%20the%20PV%20Pioneers\" title target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/themes\/enfold-child_sonnenallee\/images\/facebook.png\"\/><span class=\"avia_hidden_link_text\">Facebook<\/span><\/a><\/li><\/ul><\/div><\/div><\/div><\/header>\n<div class=\"swe-post-container\">\n<div class=\"swe-author author\"><p><strong>Text:<\/strong> Oliver Sitt, 06.04.2022<\/p><\/div>\n<section  class='av_textblock_section av-hm5a1-04a1b10d35550a643b98b6cb1ed0bc82'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>When Kurt Stenzel received his first PV system, they were still being delivered as a kit. The electrical engineer was among the first to have a PV system on his roof. In the #PVPioneer competition in 2020, SMA looked for brave people like him, who dared to take the first important steps toward the energy transition back then with what was still new technology. Sonnenallee has interviewed two of them for this article. There were a few things we wanted to know from them in particular: How do PV pioneers react to the fact that after twenty years of subsidies, grid feed-in is suddenly the least attractive option? What do they want to do next in terms of electricity? Upgrade to the latest technology, i.e. with repowering, use the electricity themselves or simply continue as they are?<\/strong><\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-las160ci-6ecaa9662cf213b73ba71bedb89c4ebe\">\n#top .hr.hr-invisible.av-las160ci-6ecaa9662cf213b73ba71bedb89c4ebe{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-las160ci-6ecaa9662cf213b73ba71bedb89c4ebe hr-invisible  avia-builder-el-4  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-hm5a1-9-275cebe7c0a2cbad841908b7bea8d8cc'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"padding-top: 60px;\">Friday night. December 31, 2020, to be exact. In these final hours before the new year, only a few people are aware that, at the stroke of midnight, the first PV systems become ineligible for subsidies through the Renewable Energy Sources Act (EEG). What exactly will happen with these systems is still unclear to many owners at this point. After all, politicians kept everybody waiting for a decision for a long time. The CDU\/SPD government in power at the time defined the conditions for continuation only two weeks before the end of the year.<\/p>\n<p>Up to this point, even systems that were already connected to the utility grid before the year 2000 had been subsidized. This was also the case for our two interviewees: Kurt Stenzel, an electrical engineer who is highly enthusiastic about photovoltaics, and Andreas B\u00e4der, co-owner of a craft business in the area of photovoltaics.<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-las163u3-5e56c928690e308a7fb76e80fea2967e\">\n#top .hr.hr-invisible.av-las163u3-5e56c928690e308a7fb76e80fea2967e{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-las163u3-5e56c928690e308a7fb76e80fea2967e hr-invisible  avia-builder-el-6  el_after_av_textblock  el_before_swe_special_images '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div class=\"flex_column av_one_full flex_column_div  avia-builder-el-7  el_after_av_hr  el_before_av_hr \"><div class=\"swe-special-images swe-special-images-1 subtitle\"><div class=\"image-container image-container-image-1\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2022\/03\/900x600_Repowering_01.jpg\" alt=\"Ein Zweifamilienhaus mit Pult- und Grasdach. Dach und Fassade sind mit Photovoltaikmodulen best\u00fcckt.\" aria-label=\"Andreas B\u00e4der installed PV modules on his grass roof back in 1998.\" \/><\/div><span class=\"image-subtitle\"><span class=\"image-subtitle-inner image-description\">Andreas B\u00e4der installed PV modules on his grass roof back in 1998.<\/span><\/span><div class=\"image-container image-container-image-2\"><div class=\"image-container-inner\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2022\/04\/Andreas-Baeder_900x600.jpg\" alt=\"Portr\u00e4t eines \u00e4lteren Mannes mit Brille und Bart in einem Freizeithemd. Im Hintergrund ein Garten sowie kleine PV-Module.\" aria-label=\"Andreas B\u00e4der installed PV modules on his grass roof back in 1998.\" \/><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-8  el_after_swe_special_images  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-hm5a1-8-05625cd23fcfb66b0a9c98f00a4e098d'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Two photovoltaics fans \u2013 one starting point: 1998<\/h2>\n<p>Independently of one another, both Andreas B\u00e4der and Kurt Stenzel installed their first PV system in 1998. In subsequent years, they expanded their PV capacities and both now have a battery-storage system to enable them to consume as much of the energy yield as possible themselves.<\/p>\n<h2>How PV pioneers are dealing with the end of subsidies<\/h2>\n<p><strong>SONNENALLEE:<\/strong><br \/>\nMr. B\u00e4der, Mr. Stenzel, the subsidies for your first PV system were discontinued at the end of 2020. How are your initial systems performing?<\/p>\n<p><strong>Kurt Stenzel:<\/strong><br \/>\nSurprisingly well. Over the years, I haven\u2019t really noticed any of the performance losses that the manufacturers warned of back then. Of course, due to fluctuations in the weather, it is difficult to judge, but I would maintain that my solar harvest is almost exactly as high as it was just after installation in 1998. However, with today\u2019s technology, I could generate almost three times the amount of energy with that roof area.<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-10  el_after_av_textblock  el_before_swe_special_images '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div class=\"flex_column av_one_full flex_column_div  avia-builder-el-11  el_after_av_hr  el_before_av_hr \"><div class=\"swe-special-images swe-special-images-2 subtitle\"><div class=\"image-container image-container-image-1\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2022\/03\/900x600_Repowering_03.jpg\" alt=\"Auf einer Wiese in einem Privatgarten montiert auf einer S\u00e4ule, eine Photovoltaikanlage.\" aria-label=\"In 2004, Kurt Stenzel decided to build a 16 m2 tracking PV system in his garden.\" \/><\/div><span class=\"image-subtitle\"><span class=\"image-subtitle-inner image-description\">In 2004, Kurt Stenzel decided to build a 16 m2 tracking PV system in his garden.<\/span><\/span><div class=\"image-container image-container-image-2\"><div class=\"image-container-inner\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2022\/04\/Kurt-Stenzel_900x936.jpg\" alt=\"Portr\u00e4t eines \u00e4lteren Mannes mit gepflegtem Vollbart und Brille.\" aria-label=\"In 2004, Kurt Stenzel decided to build a 16 m2 tracking PV system in his garden.\" \/><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-12  el_after_swe_special_images  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-hm5a1-6-16e7da2ce67d26d07e4a50d71730f258'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>SONNENALLEE:<\/strong><br \/>\nMr. B\u00e4der, your PV system also kept delivering excellent values until the end. What considerations led to you replacing it with a new one?<\/p>\n<p><strong>Andreas B\u00e4der:<\/strong><br \/>\nWe had some renovation work on our agenda anyway when the subsidies were discontinued. It was perfect timing then to combine that with repowering the system. And then there is our relatively high power consumption which, of course, I would really like to cover using photovoltaics. <\/p>\n<p>Incidentally, one of our neighbors and our first photovoltaics client still have their system from 1998 running.  The reason for this is that the new modules may perform far better, but they are also larger, which means the roof area can no longer be used as efficiently. Ultimately, the new PV system would not have brought them any appreciable increase in yield.<\/p>\n<p><strong>Kurt Stenzel:<\/strong><br \/>\nI am holding off with repowering until I can see how our energy requirements change as a result of our new electric car. Until then, the old modules will be staying on the roof. Having said that, I\u2019ve already gotten one quote for a new PV system.<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-14  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-hm5a1-4-6656269470ceaef5ac0d351ce2b8cca7'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Subsidies under the Renewable Energy Sources Act (EEG) are discontinued \u2013 what now?<\/h2>\n<p>With every passing year, more PV systems lose their eligibility for subsidies under the Renewable Energy Sources Act (EEG) \u2013 which means that soon it will not just be PV pioneers who are faced with the question of how to continue with their own private energy transition. As subsidies are discontinued, the EEG amendment 2021 provides owners of PV systems with a variety of options:<\/p>\n<h2>Changing nothing is also an option<\/h2>\n<p>It is the simplest of all options. Operation of the PV system will continue as usual. That means that all of the solar power will be fed into the utility grid. The EEG amendment 2021 guarantees this option until 2027 at least. However, the feed-in tariff is based on the yearly market value for PV electricity that is determined by the energy exchange. In 2020, the price was just under 2.5\u00a0cents per kWh. From that, the grid operator deducts the selling costs. In 2020, that was 0.4\u00a0cents. One year later, however, the situation was completely different: The yearly market value tripled and was now just above 7.5\u00a0cents. That is a record value that exceeds even the subsidies for new systems. Nevertheless, it is still only a fraction of the price that consumers pay to their electric utility company for one kilowatt hour.<\/p>\n<h2>Consuming solar power yourself yields the greatest saving<\/h2>\n<p>That is why simply using as much of the electricity produced as possible yourself is among the most popular. As long as the power of the PV system is below 30\u00a0kWp and self-consumption does not exceed 30\u00a0MWh, it is not necessary to pay any further EEG levy on the electricity you consume yourself. However, the system should be modified accordingly by trained specialist personnel. A set-up that Mr. B\u00e4der\u2019s first photovoltaics customer also opted for. Now they largely use the electricity from their 24-year-old PV system themselves in order to keep their electricity bill low.<\/p>\n<h2>Who offers more? Higher prices through direct selling?<\/h2>\n<p>Time and again, you hear that it is possible to sell the electricity yourself at higher prices \u2013 to green electricity providers, for example. Naturstrom, the largest independent green electricity provider, does not offer that. Spokesperson Tim Loppe gives the following reasons for its stance: \u201cThese pioneer systems have very low power. In addition, after the feed-in tariff ceases to apply, it makes sense to use as much self-generated electricity as possible yourself in the home. That means there are only minimal amounts of residual current left over to feed into the utility grid \u2013 that&#8217;s not worth selling on as green electricity.\u201d<\/p>\n<h2>Repowering: Full steam ahead for the upgrade<\/h2>\n<p>Anybody who wishes to profit from the progress made in over two decades of technical development is opting for repowering. The term \u201crepowering\u201d means increasing the efficiency of an existing system that generates electricity by modernizing it. With photovoltaics, that means weakening modules or a faulty inverter are replaced, for example. But it can also mean optimizing self-consumption. This may be achieved by installing an <a href=\"https:\/\/www.sma.de\/en\/products\/monitoring-control\/sunny-home-manager-20.html\" target=\"_blank\" rel=\"noopener\">SMA Sunny Home Manager 2.0<\/a> or storage technology, or incorporating an electric car into the new concept, for example. While the Sunny Home Manager controls devices in the home so that as much self-generated solar power as possible is used, consumption can also be shifted to other times with an electric car or a battery-storage system. In this connection, it is also worth reading our \u201c<a href=\"https:\/\/sonnenallee.sma.de\/en\/mobility\/wallbox-guide\/\" target=\"_blank\" rel=\"noopener\">Wallbox Guide<\/a>\u201d.<\/p>\n<h2>Repowering \u2013 What is possible?<\/h2>\n<p>However, with many of the systems that are over 20 years old, repowering will boil down to all of the components being replaced. With the same roof area, that means the solar harvest will double on average. As a result, the question of where the electricity will go becomes even more pressing.<\/p>\n<p>After all, despite new subsidies, self-consumption will remain the most profitable option in the future, too. With the right infrastructure \u2013 consisting of a modern inverter, SMA Sunny Home Manager 2.0, a battery inverter such as the <a href=\"https:\/\/www.sma.de\/en\/products\/battery-inverters\/sunny-island-44m-60h-80h.html\" target=\"_blank\" rel=\"noopener\">SMA Sunny Island<\/a> and energy storage solutions \u2013 up to 80 percent of the electricity generated can be consumed at the property. After all, with the right infrastructure you continue using your solar power even in the dead of night. A very special feeling. You can find a graphical overview of the options produced by SMA at <a href=\"https:\/\/www.sma.de\/post-eeg.html\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sma.de\/post-eeg.html<\/a>.<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-16  el_after_av_textblock  el_before_swe_special_images '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div class=\"flex_column av_one_full flex_column_div  avia-builder-el-17  el_after_av_hr  el_before_av_hr \"><div class=\"swe-special-images swe-special-images-3 subtitle\"><div class=\"image-container image-container-image-1\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2022\/03\/900x600_Repowering_02.jpg\" alt=\"Eine per Holzkonstruktion gest\u00fctzte, gl\u00e4serne \u00dcberdachung, die an einer Hauswand entlangf\u00fchrt.\" aria-label=\"Since the old timber structure of the canopy was in need of renovation, Andreas B\u00e4der also replaced the modules with more translucent photovoltaics integrated in panes.\" \/><\/div><span class=\"image-subtitle\"><span class=\"image-subtitle-inner image-description\">Since the old timber structure of the canopy was in need of renovation, Andreas B\u00e4der also replaced the modules with more translucent photovoltaics integrated in panes.<\/span><\/span><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-18  el_after_swe_special_images  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-hm5a1-3-78c0b0e74c24fa69874ebdfc9305f7ed'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>More effective storage rather than feeding in<\/h2>\n<p>For both PV pioneers, repowering is an ongoing process. Over the years, they have expanded their systems and equipped them with an electricity storage system. \u201cIn 2018, investing in an electricity storage system wasn\u2019t profitable yet. The prices were too high for that,\u201d explains Kurt Stenzel. \u201cBut it did mean that we were already able to cover almost 80 percent of our needs ourselves in the first year \u2013 without a battery-storage system, that wouldn\u2019t even have been 30 percent,\u201d the pensioner reports enthusiastically.<\/p>\n<h2>Tips for using more electricity yourself<\/h2>\n<p>Andreas B\u00e4der agrees, but the businessman has another trick. He utilizes the control options that are available today:<br \/>\n\u201cWith our system, any solar power not needed at the moment automatically goes to a heating element in our hot-water tank. The electricity does not charge our 7.5 kW electricity storage system in the cellar or our electric car until the water in the tank is sufficiently hot. Thus the solar power effectively runs through a cascade of consumers before a small amount of residual current is fed into the utility grid.\u201d He also recommends the trick with the heating element to his customers: \u201cToday, almost every modern buffer storage\u00a0system has a facility for connecting a second heating element. This can be actuated immediately when there is surplus solar power. That is certainly more convenient than installing a solar thermal energy system on the roof in parallel, and you can use the free area to increase the PV capacity,\u201d explains the businessman.<\/p>\n<h2>Fresh impetus for the energy transition from the bottom up<\/h2>\n<p>But demand for PV systems is also growing independently of repowering measures at the moment. Andreas B\u00e4der first observed this some time ago: \u201cWith Fridays for Future, awareness of the necessity of renewable energies has increased considerably.\u201d PV pioneer Wilhelm Heisse from Landsberg am Lech gave us a similar account. The managing director of Heisse Solar was forced to decline an interview due to the associated high workload: \u201cIn around two months, we as a small specialist company have received 90 inquiries for PV projects.\u201d Thus the energy transition is receiving fresh momentum that is registering with the companies locally too \u2013 including from people who are not PV pioneers.<\/p>\n<p>Supplement: The current war in Ukraine could give this trend further impetus. Because energy is becoming increasingly expensive not only at gas stations, but also on the electricity exchanges. According to the <a href=\"https:\/\/www.finanztip.de\/stromvergleich\/strompreis\/\" target=\"_blank\" rel=\"noopener\">Finanztip<\/a> portal, the \u201cprices on the electricity exchange (&#8230;) in March 2022 were around eight times as high as in March 2021.\u201d Another good reason to finally tap into the domestic energy sources on your own roof.<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-20  el_after_av_textblock  el_before_av_promobox '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='av_promobox av-kbupbijg-8086a0176d11b746c1f940ccb62b0ff6 avia-button-no  avia-builder-el-21  el_after_av_hr  el_before_av_hr '><div class='avia-promocontent'><h6 style=\"text-align: right;\"><\/h6>\n<h2>Helpful links on the topic of systems over 20 years old<\/h2>\n<ul>\n<li>Articles from the Verbraucherzentrale (consumer advice center) regarding systems older than 20 years with cost-effectiveness scenarios. <a href=\"https:\/\/www.verbraucherzentrale.de\/wissen\/energie\/erneuerbare-energien\/was-tun-mit-der-ue20-pvanlage-wenn-die-eegfoerderung-endet-50846\" target=\"_blank\" rel=\"noopener\"><u>More<\/u><\/a><\/li>\n<li>Naturstrom provides concise information about the current legal situation. <a href=\"https:\/\/www.naturstrom.de\/aktuelles\/ausgefoerderte-pv-anlagen\" target=\"_blank\" rel=\"noopener\"><u>More<\/u><\/a><\/li>\n<li>Anybody who wants to get to the bottom of repowering PV systems and embark on such a project can find detailed information in the relevant \u201cplanning guidelines\u201d from SMA <a href=\"https:\/\/www.sma.de\/fileadmin\/content\/global\/specials\/eeg\/docs\/ue20-Solaranlagen-Leitfaden-PV-Experten.pdf\" target=\"_blank\" rel=\"noopener\"><u>More<\/u><\/a><\/li>\n<\/ul>\n<\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-22  el_after_av_promobox  el_before_av_one_full '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-25mj9l-367b3aaf9da059e97c550eb5a2cfe4f7\">\n.flex_column.av-25mj9l-367b3aaf9da059e97c550eb5a2cfe4f7{\n-webkit-border-radius:0px 0px 0px 0px;\n-moz-border-radius:0px 0px 0px 0px;\nborder-radius:0px 0px 0px 0px;\n}\n<\/style>\n<div class='flex_column av-25mj9l-367b3aaf9da059e97c550eb5a2cfe4f7 av_one_full  avia-builder-el-23  el_after_av_hr  avia-builder-el-last  first flex_column_div av-zero-column-padding '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kaiamabp-8951accc3d3a1eabc6cc6060abd07fcf\">\n.av_promobox.av-kaiamabp-8951accc3d3a1eabc6cc6060abd07fcf{\nbackground:#ffffff;\nborder-color:#0a0a0a;\n}\n<\/style>\n<div  class='av_promobox av-kaiamabp-8951accc3d3a1eabc6cc6060abd07fcf avia-button-no  avia-builder-el-24  el_before_av_hr  avia-builder-el-first '><div class='avia-promocontent'><div class=\"big-preview single-big\">\n<h1 class=\"post-title entry-title\">Brief introduction: Kurt Stenzel<\/h1>\n<\/div>\n<div class=\"av-heading-wrapper bordered\">Solar energy has always been a hobby for this qualified electrician. His first experiments began with a small solar thermal energy system on his roof. Back then, he assembled the modules himself according to a construction plan that came by post directly from a university. Later, he applied his expertise free of charge as an energy consultant on behalf of the Bund der Energieverbraucher e.V. (German association of energy consumers). He still gladly passes his knowledge on to friends and acquaintances today.<\/div>\n<div>\n<hr \/>\n<\/div>\n<div><img decoding=\"async\" class=\"size-full wp-image-7253 alignleft\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2022\/03\/Kurt-Stenzel_300x222.jpg\" alt=\"Portr\u00e4t eines \u00e4lteren Mannes mit gepflegtem Vollbart und Brille.\" width=\"300\" height=\"222\" \/><\/div>\n<p>\n<\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-25  el_after_av_promobox  el_before_av_promobox '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kaiamabp-2-81324ef01e5b9c18daafa10021b5f94a\">\n.av_promobox.av-kaiamabp-2-81324ef01e5b9c18daafa10021b5f94a{\nbackground:#ffffff;\nborder-color:#0a0a0a;\n}\n<\/style>\n<div  class='av_promobox av-kaiamabp-2-81324ef01e5b9c18daafa10021b5f94a avia-button-no  avia-builder-el-26  el_after_av_hr  el_before_av_hr '><div class='avia-promocontent'><\/p>\n<div class=\"big-preview single-big\">\n<h1 class=\"post-title entry-title\"><strong>Brief introduction: Andreas B\u00e4der<\/strong><\/h1>\n<\/div>\n<div class=\"av-heading-wrapper bordered\">The qualified social education worker learned everything about photovoltaics from independent study and through practical experience. Later, he attended training courses. His awareness was increased by the book The Limits to Growth from the Club of Rome back when he was a high-school graduate. After a variety of temporary contracts, he joined his stepfather\u2019s electrical and metalworking company. This gave him a professional outlet for his enthusiasm for solar technology. As a pilot project, he built his first PV system on his grass roof in 1998 and did the same for a neighbor that very year. His solar area has been independent of his stepfather\u2019s company since 2009. The business, which has been independent ever since, operates under the name of B\u00e4der Solar in Dinslaken, a town close to the River Rhine. <a href=\"https:\/\/www.baedersolar.de\/\" target=\"_blank\" rel=\"noopener\"><u>https:\/\/www.baedersolar.de\/<\/u><\/a><\/div>\n<div>\n<hr \/>\n<\/div>\n<div><img decoding=\"async\" class=\"size-full wp-image-7257 alignleft\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2022\/03\/Andreas-Baeder_300x222.jpg\" alt=\"Portr\u00e4t eines \u00e4lteren Mannes mit Brille und Bart in einem Freizeithemd. Im Hintergrund ein Garten sowie kleine PV-Module.\" width=\"300\" height=\"222\" \/><\/div>\n<p>\n<\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-3a876428eececa9d35452247ddb053af\">\n#top .hr.hr-invisible.av-av_hr-3a876428eececa9d35452247ddb053af{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-av_hr-3a876428eececa9d35452247ddb053af hr-invisible  avia-builder-el-27  el_after_av_promobox  el_before_swe_recent_posts '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<div class=\"swe-recent-posts\"><div data-slider-controls class=\"swe-recent-posts-buttons\"><button data-prev class=\"slider-arrow left no-hover\"><img decoding=\"async\" src=\"\/wp-content\/themes\/enfold-child_sonnenallee\/images\/icons\/pfeil.svg\"\/><\/button><button data-next class=\"slider-arrow right no-hover\"><img decoding=\"async\" src=\"\/wp-content\/themes\/enfold-child_sonnenallee\/images\/icons\/pfeil.svg\"\/><\/button><\/div><!-- end swe-recent-posts-buttons --><div class=\"slides\"><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/solar-energy\/mission-solarize\/\" style=\"background-image: url(https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2024\/01\/solaranlage-montage-scaled.jpg);\" class=\"dark\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Solar energy<\/span><\/div><h1>Mission #solarize<\/h1><\/div><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/solar-energy\/solar-buildings-past-and-present\/\" style=\"background-image: url(https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2023\/06\/SMA_Sonnen_Artikel_Solararchitektur_1205x636.jpg);\" class=\"light\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Solar energy<\/span><\/div><h1>Always Following the Sun<\/h1><\/div><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/solar-energy\/floating-power-plants\/\" style=\"background-image: url();\" class=\"dark\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Solar energy<\/span><\/div><h1>Floating power plants<\/h1><\/div><video loop muted autoplay playsinline><source type=\"video\/mp4\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2023\/11\/floatingfarm_header.mp4\" \/><\/video><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/solar-energy\/giving-old-satellite-dishes-a-new-lease-on-life\/\" style=\"background-image: url(https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2023\/08\/SMA_Sonnen_Artikel_Solarsatelliten_1205x636.jpg);\" class=\"light\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Solar energy<\/span><\/div><h1>Giving old satellite dishes a new lease on life \u2013<\/h1><\/div><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/solarenergie-en\/solar-energy-from-space-2\/\" style=\"background-image: url(https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2024\/04\/solar_weltall_thumb.png);\" class=\"light\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Solar energy<\/span><\/div><div class=\"category\"><span class=\"btn inverted\">Solarenergie<\/span><\/div><h1>Solar Energy from Space<\/h1><\/div><video loop muted autoplay playsinline poster=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2024\/04\/solar_weltall_thumb.png\"><source type=\"video\/mp4\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2024\/04\/Sonnenaufgang-im-Weltall.mp4\" \/><\/video><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/chiles-green-revolution\/\" style=\"background-image: url(https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2023\/12\/Diego-del-Almagro.jpg);\" class=\"light\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Climate and change<\/span><\/div><h1>Chile\u2019s Green Revolution<\/h1><\/div><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/solar-energy\/a-crystal-clear-view-with-green-added-value\/\" style=\"background-image: url(https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2024\/03\/Solar-Academy-SMA.jpg);\" class=\"light\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Solar energy<\/span><\/div><h1>A Crystal-Clear View with Green Added Value<\/h1><\/div><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/electromobility\/in-the-electric-fast-lane\/\" style=\"background-image: url();\" class=\"dark\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Electromobility<\/span><\/div><h1>In the Electric Fast Lane<\/h1><\/div><video loop muted autoplay playsinline><source type=\"video\/mp4\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2023\/08\/SMA_Induktives_Laden_Header_1_.mp4\" \/><\/video><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/solar-energy\/to-rent-or-to-buy\/\" style=\"background-image: url(https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2023\/06\/SMA_Sonnen_Artikel_Mieten_kaufen_1205x636.jpg);\" class=\"dark\"><div class=\"title bottom-left\"><div class=\"category\"><span class=\"btn inverted\">Solar energy<\/span><\/div><h1>To rent or to buy?<\/h1><\/div><\/a><\/div><div class=\"slide\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/solar-energy\/eco-friendly-fun-at-disneyland\/\" style=\"background-image: url();\" class=\"dark\"><div class=\"title top-left\"><div class=\"category\"><span class=\"btn inverted\">Solar energy<\/span><\/div><h1>Eco-friendly fun at Disneyland<\/h1><\/div><video loop muted autoplay playsinline><source type=\"video\/mp4\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2024\/06\/5098089-hd_1920_1080_30fps.mp4\" \/><\/video><\/a><\/div><\/div><\/div><\/p><\/div><div class=\"center-content\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/\" class=\"btn inverted\">Close article<\/a><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>They were among the first to obtain electricity from the sun. The subsidies for their systems ceased in 2021. We asked what the PV pioneers are doing in response.<\/p>\n","protected":false},"author":26,"featured_media":7273,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","beyondwords_generate_audio":"","beyondwords_project_id":"","beyondwords_content_id":"","beyondwords_preview_token":"","beyondwords_player_content":"","beyondwords_player_style":"","beyondwords_language_code":"","beyondwords_language_id":"","beyondwords_title_voice_id":"","beyondwords_body_voice_id":"","beyondwords_summary_voice_id":"","beyondwords_error_message":"","beyondwords_disabled":"","beyondwords_delete_content":"","beyondwords_podcast_id":"","beyondwords_hash":"","publish_post_to_speechkit":"","speechkit_hash":"","speechkit_generate_audio":"","speechkit_project_id":"","speechkit_podcast_id":"","speechkit_error_message":"","speechkit_disabled":"","speechkit_access_key":"","speechkit_error":"","speechkit_info":"","speechkit_response":"","speechkit_retries":"","speechkit_status":"","speechkit_updated_at":"","_speechkit_link":"","_speechkit_text":""},"categories":[77],"tags":[89],"class_list":["post-7338","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solar-energy","tag-solar-energy"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>New Start for the PV Pioneers - Sonnenallee<\/title>\n<meta name=\"description\" content=\"What photovoltaics pioneers are doing when their more than 20-year-old systems no longer qualify for subsidies. 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