{"id":5606,"date":"2021-05-25T15:52:29","date_gmt":"2021-05-25T13:52:29","guid":{"rendered":"https:\/\/sonnenallee.sma.de\/?p=5606"},"modified":"2022-09-08T10:14:24","modified_gmt":"2022-09-08T08:14:24","slug":"net-zero-homes-2","status":"publish","type":"post","link":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/","title":{"rendered":"Net Zero Homes"},"content":{"rendered":"<header class=\"swe-post-header swe-post-header-image-right\"><div class=\"info\"><h1 itemprop=\"headline\">Net Zero Homes<\/h1><div class=\"subtitle\">The path to CO2-neutral homes<\/div><div class=\"blog-tags\"><a href=\"https:\/\/sonnenallee.sma.de\/en\/tag\/climate-change\/\" rel=\"tag\" class=\"tag\">#Climate and change<\/a><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\">2<\/span><\/div><div class=\"symbol\"><\/div><\/div><\/div><div class=\"time\">6 Min.<\/div><\/div><\/div><div class=\"preview\"><img decoding=\"async\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.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=\"5606\"\n                    data-ulike-nonce=\"bfbf7148b2\"\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_5606\"><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%2Fclimate-change%2Fnet-zero-homes-2%2F&amp;subject=Net%20Zero%20Homes\" 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%2Fclimate-change%2Fnet-zero-homes-2%2F&amp;t=Net%20Zero%20Homes\" 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> Birgit Scheuch, 25.05.2021<\/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>The first part of our article described the starting position in relation to \u201cclimate-neutral construction\u201d and the prerequisites for net zero homes It is possible to run a new single-family home in a climate-neutral way. On average, the additional costs compared with a new home built according to the current efficiency standard are recouped after 10 to 15 years. Things get exciting when climate neutrality is applied not only to operating the building, but also to the emissions from all of the construction activity.<\/strong><\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-hm5a1-24-8746c50c545acd4c4b3442c49dadfa98\">\n#top .av_textblock_section.av-hm5a1-24-8746c50c545acd4c4b3442c49dadfa98 .avia_textblock{\n-webkit-column-count:2;\n-moz-column-count:2;\ncolumn-count:2;\n}\n\n@media only screen and (max-width: 989px){ \n#top .av_textblock_section.av-hm5a1-24-8746c50c545acd4c4b3442c49dadfa98 .avia_textblock{\ncolumn-count:1;\n}\n.av_textblock_section.av-hm5a1-24-8746c50c545acd4c4b3442c49dadfa98 .avia_textblock.av_multi_colums > p:first-child{\nmargin-top:0.85em;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-hm5a1-24-8746c50c545acd4c4b3442c49dadfa98'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock av_multi_colums'  itemprop=\"text\" ><h2><strong>Fit for 2050 \u2013 Building without a negative effect on the climate<\/strong><\/h2>\n<p>With a truly climate-neutral building, the \u201cgray energy\u201d required for mining raw materials, producing building materials, transport and construction must later be mathematically offset in real terms. Wolfgang Stumpf from the Department for Building and Environment at the Danube University Krems names reducing energy requirements, using power and heat from renewable energies and feeding power and waste heat into the utility grid as key adjusting elements.<\/p>\n<p>Another factor is sharing climate-friendly power via a <a href=\"https:\/\/sonnenallee.sma.de\/en\/smart-city-en\/more-energy-together\/\" target=\"_blank\" rel=\"noopener\">microgrid<\/a>: \u201cHere you pass surplus energy from your photovoltaic system on to your neighbors without putting a strain on the transmission grid. The producer receives a credit note. To this end, both parties need a smart meter, and there needs to be a purchase agreement and the legal possibility to make this deal. The Renewable Energy Expansion Act (Erneuerbare-Ausbau-Gesetz \u2013 EAG) that is to enter into force before the end of 2021 will make it far easier in Austria to share self-generated power or power that is produced privately or in a commercial enterprise, and also waste heat, with consumers.\u201d<\/p>\n<p>Because it is difficult to compensate for emissions over decades with a conventional building, even if much more renewable energy is produced than its occupants consume, the construction should be climate-friendly to begin with. As a home-builder with a limited budget, it is good to be familiar with the wide range of optimization options \u2013 and to opt for a combination that is suitable for you.<\/p>\n<p>Due to the lack of regulations and incentives for truly climate-friendly building, it&#8217;s purely a question of knowledge and conscience when it comes to making one&#8217;s new home a reality.<\/p>\n<\/div><\/section>\n<div class=\"flex_column av_one_full flex_column_div  avia-builder-el-5  el_after_av_textblock  el_before_av_textblock \"><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\/2021\/05\/Nutzung-von-Strom-und-Waerme-01.jpg\" alt=\"\" aria-label=\"Use of electricity and heat from renewable energy sources.\" \/><\/div><span class=\"image-subtitle\"><span class=\"image-subtitle-inner image-description\">Use of electricity and heat from renewable energy sources.<\/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\/2021\/05\/Nutzung-von-Strom-und-Waerme-02.jpg\" alt=\"\" aria-label=\"Use of electricity and heat from renewable energy sources.\" \/><\/div><\/div><\/div><\/div>\n<section  class='av_textblock_section av-hm5a1-19-bae5e2e0decc00e7ecf10c6d58e944c0'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2><strong>Strategy number 1: Thinking ahead<\/strong><\/h2>\n<p><strong>Time factor<\/strong>: \u201cWe anticipate that it will take one hundred years for CO2 previously released into the atmosphere to be reduced once more,\u201d said Stumpf. \u201cSo we should ensure that a house is used for a hundred years. Our Gr\u00fcnderzeit houses here in Vienna are now a hundred years old. That means they have now offset the emissions from production and construction. The only bad thing is if they are operated with energy from fossil fuels.\u201d<\/p>\n<p><strong>Mobility factor<\/strong>: The location of a newly built house is a major factor in its carbon footprint. Is it well served by local public transport? Is the supermarket within walking or cycling distance? For truly climate-neutral living, these greenhouse gases emitted as a result of personal mobility also need to be factored in.<\/p>\n<\/div><\/section>\n<div class=\"flex_column av_one_full flex_column_div  avia-builder-el-7  el_after_av_textblock  el_before_av_textblock \"><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\/2021\/05\/nachwachsende-Rohstoffe.jpg\" alt=\"\" aria-label=\"\u201eWe can build as efficiently as we want, every human activity consumes resources and has emissions consequences.\u201c\" \/><\/div><span class=\"image-subtitle\"><span class=\"image-subtitle-inner image-description\">\u201eWe can build as efficiently as we want, every human activity consumes resources and has emissions consequences.\u201c<\/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\/2021\/05\/Effizient-bauen.jpg\" alt=\"\" aria-label=\"\u201eWe can build as efficiently as we want, every human activity consumes resources and has emissions consequences.\u201c\" \/><\/div><\/div><\/div><\/div>\n<section  class='av_textblock_section av-hm5a1-14-d48e92c43deb7c3c559adf06de427748'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2><strong>Strategy number 2: Be moderate<\/strong><\/h2>\n<p>Another watchword in the current international discourse is <a href=\"https:\/\/www.db-bauzeitung.de\/suffizienz\/\" target=\"_blank\" rel=\"noopener\">sufficiency<\/a>: \u201cWe can build as efficiently as we want to. Every human activity uses up resources and has consequences in terms of emissions. So first of all, I ask myself: do I really need to build from scratch?\u201d said Joost Hartwig.<\/p>\n<p>If the answer is yes, the next question is: how much is appropriate? \u201cPeople who build from scratch \u2013 I see this in my private life too \u2013 mostly go to their limit and try to cover every eventuality. One, two, three children with their own bedroom, a study, a granny flat. That very quickly leads to houses of 160 or 170 square meters. Then after 15 years perhaps they are just living there as a couple, or there is a separation and one person is living alone in a 160 m2 house. And the others who move out, they have not disappeared. They need housing space too. If I build a single-family home that is 20 percent smaller, then that is a giant lever that costs me nothing first of all, and with a good architect, nobody will notice that the house is smaller.\u201d<\/p>\n<p>Thinking about later usage scenarios when planning the load-bearing walls does not cost anything either and reduces the need for laborious modifications later. Taking the Vienna Gr\u00fcnderzeit houses as an example, Stumpf said, \u201cIt is interesting that the basic structure of these houses is multipurpose. What was once conceived as a residential building is used for a law office, practice or administrative office \u2013 and it works too.\u201d<\/p>\n<p>At an operational level, Hartwig recommends including passive systems wherever possible, which means nothing that consumes energy itself. Structural solutions such as using the ceilings as thermal storage systems take priority over complex domestic technology. After all, the power to operate it also needs to be generated first. This poses the question of what I (not the assumed average occupant) perceive as comfort. Thus, according to J\u00f6rg Finkbeiner, the <a href=\"https:\/\/partnerundpartner.com\/de\/projekte\/holzhaus-k-glatten-2011\/\" target=\"_blank\" rel=\"noopener\">Black Forest timber house<\/a> designed by the Partner &#038; Partner architectural firm, which specializes in <a href=\"https:\/\/partnerundpartner.com\/en\/cradle-to-cradle\/\" target=\"_blank\" rel=\"noopener\">cradle to cradle<\/a>, works wonderfully without ventilation. \u201cThat is low-tech comfort.\u201d<\/p>\n<\/div><\/section>\n<div class=\"flex_column av_one_full flex_column_div  avia-builder-el-9  el_after_av_textblock  el_before_av_textblock \"><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\/2021\/05\/Schwarzwald-Holzhaus-Partner-und-Partner-01.jpg\" alt=\"\" aria-label=\"\u201eThe Black Forest timber house designed by the architectural firm Partner & Partner functions quite wonderfully without ventilation.\u201c\" \/><small class=\"copyright avia-copyright\">\u00a9 Partner und Partner Architekten<\/small><\/div><span class=\"image-subtitle\"><span class=\"image-subtitle-inner image-description\">\u201eThe Black Forest timber house designed by the architectural firm Partner & Partner functions quite wonderfully without ventilation.\u201c<\/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\/2021\/05\/Schwarzwald-Holzhaus-Partner-und-Partner-02.jpg\" alt=\"\" aria-label=\"\u201eThe Black Forest timber house designed by the architectural firm Partner & Partner functions quite wonderfully without ventilation.\u201c\" \/><small class=\"copyright avia-copyright\">\u00a9 Partner und Partner Architekten<\/small><\/div><\/div><\/div><\/div>\n<section  class='av_textblock_section av-hm5a1-8-cd15851906d73550bf26d39427e015eb'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2><strong>Strategy number 3: Buy second-hand<\/strong><\/h2>\n<p>\u201cWe are big fans of renovating existing structures,\u201d said Hartwig. \u201cThat means looking around for a building structure that I can continue to use. If I modernize it, I can save a lot of CO<sub>2<\/sub> that is tied up in the primary structure \u2013 meaning the load-bearing structure, the walls and ceilings, by extending its use.\u201d<\/p>\n<p>\u201cI would maintain that in most existing buildings, you can achieve spatial qualities that are at least as good as a newbuild. Of course, I cannot order that from a catalog and need a little bit of imagination or a planner to help me with it.\u201d<\/p>\n<p>\u201cCertainly, there could be some nasty surprises in store for me, which puts a lot of people off. Every tradesperson that comes in ums and ahs and sucks their teeth at first. Then the impulse is often to say, \u201cLet\u2019s tear it down \u2013 then we\u2019ll know what we\u2019ve got.\u201d Of course, from an ecological perspective, that is a total disaster.\u201d<\/p>\n<h2><strong>Strategy number 4: Use renewable raw materials<\/strong><\/h2>\n<p>\u201cFor everything that I build from scratch or enhance, renewable raw materials are the first choice,\u201d said Hartwig. \u201cTimber is already a carbon sink in itself, because the tree absorbed CO<sub>2<\/sub>while it was growing.\u201d This makes it a positive influence on the eco-balance.<\/p>\n<p>If, however, large quantities of greenhouse gases are released elsewhere when the insulation required to comply with local efficiency standards is produced, that is a naive fallacy from a global perspective. That should be clear to everyone, even without a detailed eco-balance. The hemp produced in the neighboring federal state and clay extracted in the region are far better in every respect. \u201cUnfortunately,\u201d said Hartwig regretfully, \u201cthere is no federal incentive to use timber or the like.\u201d<\/p>\n<h2><strong>Strategy number 5: Delegate the topic<\/strong><\/h2>\n<p>Surprisingly, timber is used a lot in prefabricated buildings. \u201cThere, the pressure is on to ensure that production is cost-effective\u201d, explained \u201cAs a result, many of the manufacturers build timber structures because they can prefabricate them well.\u201d In this respect, mass production is actually a positive lever for the climate here. The German Sustainable Building Council (DGNB) has issued series certifications for a large number of prefabricated house products \u2013 some of them even achieve the DGNB silver, gold or platinum standard. So, prefabricated houses are better than their reputation.<\/p>\n<h2><strong>Strategy number 6: Think backward from the end<\/strong><\/h2>\n<p>Of course, somebody who is building a house is not going to want to think about its ending. However, doing precisely this is a key moment in relation to the climate. Dismantling, removal from site and disposal of building materials also produce greenhouse gases. Recyclable building components and materials, on the other hand, have the effect of balancing emissions because the CO2 that is bound up within them stays where it is. \u201cFor example, you could remove the roof structure and use it for a new house,\u201d said Stumpf. Or on a smaller scale: \u201cUnlike the conventional floating screed, dry screed made from construction boards allows water and heating pipes to be separated from the floor during demolition or renovation.\u201d<\/p>\n<p>Incidentally, a model home that can be dismantled \u2013 from the fa\u00e7ade to the water tap \u2013 is currently being built in a project at TU Dresden supported by the research initiative Zukunft Bau (Future of Construction).<\/p>\n<h2><strong>Strategy number 7: Reuse<\/strong><\/h2>\n<p>\u201cIf something is no longer suitable and I need to carry out a partial demolition, I consider reusing it. Maybe I can reuse things as building materials or components. I mean, don\u2019t just simply take everything to the dump or bury it,\u201d said Hartwig.<\/p>\n<p>Of course, building entire houses out of recyclable material would be ideal for the climate. However, because obtaining approval for recycling building materials and especially entire structural elements is a huge challenge, there have previously been only a few case studies and experts such as <a href=\"https:\/\/vimeo.com\/384593941\">Ute Dechantsreiter<\/a>. She is an initiator of the <a href=\"http:\/\/www.bauteilnetz.de\/bauteilnetz\/website\/stdws_thema\/bauteilnetz\/ziele.html\" target=\"_blank\" rel=\"noopener\">building components exchanges<\/a> in Germany and conducts research on the reuse of building components and the circular economy in the construction industry.<\/p>\n<h2><strong>Strategy number 8: Compensate differently<\/strong><\/h2>\n<p>\u201cAs a final step, if there are still CO2 emissions remaining despite all compensation measures, there is the option of obtaining legitimate certificates,\u201d stated Stumpf. Here, compensation is achieved by saving CO2 elsewhere. \u201cFor example, through planting trees to bring about reforestation or the conversion of a Central American oil-fired power station to wind energy.\u201d<\/p>\n<p>All the measures that contribute to improving the carbon footprint by other means still remain. Fa\u00e7ade greening or vertical gardening, a green roof on your outbuilding or annex, rainwater treatment, a permaculture garden on your doorstep \u2013 entirely according to your personal preferences.<\/p>\n<p>Ultimately, building a house offers endless opportunities for helping the climate. The knowledge, technologies and building materials are all in place. From generating your own energy to compensating for all emissions, every step is a step in the right direction. That is something else that will contribute to meeting the climate targets.<\/p>\n<\/div><\/section>\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-11  el_after_av_textblock  avia-builder-el-last  first flex_column_div av-zero-column-padding column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kaiamabp-a579cd6a18ed2d68d95d2e1b0d98d959\">\n.av_promobox.av-kaiamabp-a579cd6a18ed2d68d95d2e1b0d98d959{\nbackground:#ffffff;\nborder-color:#0a0a0a;\n}\n<\/style>\n<div  class='av_promobox av-kaiamabp-a579cd6a18ed2d68d95d2e1b0d98d959 avia-button-yes  avia-builder-el-12  avia-builder-el-no-sibling '><div class='avia-promocontent'><p>\nRead more<\/p>\n<hr \/>\n<div class=\"big-preview single-big\">\n<h1 class=\"post-title entry-title\">\u201eNET ZERO HOMES\u201c<\/h1>\n<\/div>\n<div class=\"av-heading-wrapper bordered\">The path to CO2-neutral homes<\/div>\n<div>\n<hr \/>\n<\/div>\n<div><img decoding=\"async\" class=\"alignnone wp-image-5099 size-medium\" src=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/04\/NetZero_Teil1_Header-300x158.jpg\" alt=\"\" width=\"300\" height=\"158\" srcset=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/04\/NetZero_Teil1_Header-300x158.jpg 300w, https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/04\/NetZero_Teil1_Header-1030x544.jpg 1030w, https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/04\/NetZero_Teil1_Header-768x405.jpg 768w, https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/04\/NetZero_Teil1_Header.jpg 1205w, https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/04\/NetZero_Teil1_Header-710x375.jpg 710w, https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/04\/NetZero_Teil1_Header-705x372.jpg 705w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n<p>\n<\/div><div  class='avia-button-wrap av-kaiamabp-6f6e5e661b84766366f6e47e2c4cf20d-wrap avia-button-right ' ><a href='https:\/\/sonnenallee.sma.de\/en\/society\/net-zero-homes\/'  class='avia-button av-kaiamabp-6f6e5e661b84766366f6e47e2c4cf20d avia-icon_select-no avia-size-medium avia-position-right avia-color-theme-color-subtle'  target=\"_blank\"  rel=\"noopener noreferrer\"><span class='avia_iconbox_title' >more<\/span><\/a><\/div><\/div><\/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>What does emissions reduction look like in the operation and overall construction activity of a building? SONNENALLEE shows exciting views of the gray energy sector for a climate-friendly future.<\/p>\n","protected":false},"author":21,"featured_media":5522,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","beyondwords_generate_audio":"1","beyondwords_project_id":"16115","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":"4862613","beyondwords_hash":"fa82e7e11b5e81c6a89870d9ec66f1a52afefb09","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":"Updated","speechkit_updated_at":"","_speechkit_link":"","_speechkit_text":""},"categories":[73],"tags":[85,89],"class_list":["post-5606","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-climate-change","tag-climate-change","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>Net Zero Homes - Sonnenallee<\/title>\n<meta name=\"description\" content=\"How do you operate buildings in an environmentally friendly way? SONNENALLEE talks to experts about the future of the &quot;gray energy sector&quot;.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Net Zero Homes - Sonnenallee\" \/>\n<meta property=\"og:description\" content=\"How do you operate buildings in an environmentally friendly way? SONNENALLEE talks to experts about the future of the &quot;gray energy sector&quot;.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Sonnenallee\" \/>\n<meta property=\"article:published_time\" content=\"2021-05-25T13:52:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-08T08:14:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1205\" \/>\n\t<meta property=\"og:image:height\" content=\"636\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Birgit Scheuch\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Birgit Scheuch\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/\",\"url\":\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/\",\"name\":\"Net Zero Homes - Sonnenallee\",\"isPartOf\":{\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.jpg\",\"datePublished\":\"2021-05-25T13:52:29+00:00\",\"dateModified\":\"2022-09-08T08:14:24+00:00\",\"author\":{\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/#\/schema\/person\/e6c194f469f8e68384326c8936ddd1b8\"},\"description\":\"How do you operate buildings in an environmentally friendly way? SONNENALLEE talks to experts about the future of the \\\"gray energy sector\\\".\",\"breadcrumb\":{\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#primaryimage\",\"url\":\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.jpg\",\"contentUrl\":\"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.jpg\",\"width\":1205,\"height\":636},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\/\/sonnenallee.sma.de\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Net Zero Homes\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/#website\",\"url\":\"https:\/\/sonnenallee.sma.de\/en\/\",\"name\":\"Sonnenallee\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/sonnenallee.sma.de\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/#\/schema\/person\/e6c194f469f8e68384326c8936ddd1b8\",\"name\":\"Birgit Scheuch\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sonnenallee.sma.de\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/2f3e0d14ba884567fecfef78902f17a52554be0844b9eeb804da97e9a2aadeae?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/2f3e0d14ba884567fecfef78902f17a52554be0844b9eeb804da97e9a2aadeae?s=96&d=mm&r=g\",\"caption\":\"Birgit Scheuch\"},\"url\":\"https:\/\/sonnenallee.sma.de\/en\/author\/birgit-scheuch\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Net Zero Homes - Sonnenallee","description":"How do you operate buildings in an environmentally friendly way? SONNENALLEE talks to experts about the future of the \"gray energy sector\".","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/","og_locale":"en_US","og_type":"article","og_title":"Net Zero Homes - Sonnenallee","og_description":"How do you operate buildings in an environmentally friendly way? SONNENALLEE talks to experts about the future of the \"gray energy sector\".","og_url":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/","og_site_name":"Sonnenallee","article_published_time":"2021-05-25T13:52:29+00:00","article_modified_time":"2022-09-08T08:14:24+00:00","og_image":[{"width":1205,"height":636,"url":"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.jpg","type":"image\/jpeg"}],"author":"Birgit Scheuch","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Birgit Scheuch","Est. reading time":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/","url":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/","name":"Net Zero Homes - Sonnenallee","isPartOf":{"@id":"https:\/\/sonnenallee.sma.de\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#primaryimage"},"image":{"@id":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#primaryimage"},"thumbnailUrl":"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.jpg","datePublished":"2021-05-25T13:52:29+00:00","dateModified":"2022-09-08T08:14:24+00:00","author":{"@id":"https:\/\/sonnenallee.sma.de\/en\/#\/schema\/person\/e6c194f469f8e68384326c8936ddd1b8"},"description":"How do you operate buildings in an environmentally friendly way? SONNENALLEE talks to experts about the future of the \"gray energy sector\".","breadcrumb":{"@id":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#primaryimage","url":"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.jpg","contentUrl":"https:\/\/sonnenallee.sma.de\/wp-content\/uploads\/2021\/05\/NetZero_Teil2_Header.jpg","width":1205,"height":636},{"@type":"BreadcrumbList","@id":"https:\/\/sonnenallee.sma.de\/en\/climate-change\/net-zero-homes-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/sonnenallee.sma.de\/en\/"},{"@type":"ListItem","position":2,"name":"Net Zero Homes"}]},{"@type":"WebSite","@id":"https:\/\/sonnenallee.sma.de\/en\/#website","url":"https:\/\/sonnenallee.sma.de\/en\/","name":"Sonnenallee","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sonnenallee.sma.de\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/sonnenallee.sma.de\/en\/#\/schema\/person\/e6c194f469f8e68384326c8936ddd1b8","name":"Birgit Scheuch","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/sonnenallee.sma.de\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/2f3e0d14ba884567fecfef78902f17a52554be0844b9eeb804da97e9a2aadeae?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/2f3e0d14ba884567fecfef78902f17a52554be0844b9eeb804da97e9a2aadeae?s=96&d=mm&r=g","caption":"Birgit Scheuch"},"url":"https:\/\/sonnenallee.sma.de\/en\/author\/birgit-scheuch\/"}]}},"_links":{"self":[{"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/posts\/5606","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/comments?post=5606"}],"version-history":[{"count":38,"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/posts\/5606\/revisions"}],"predecessor-version":[{"id":10604,"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/posts\/5606\/revisions\/10604"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/media\/5522"}],"wp:attachment":[{"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/media?parent=5606"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/categories?post=5606"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sonnenallee.sma.de\/en\/wp-json\/wp\/v2\/tags?post=5606"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}