{"id":7195,"date":"2026-02-04T10:45:50","date_gmt":"2026-02-04T08:45:50","guid":{"rendered":"https:\/\/geothron.com\/?p=7195"},"modified":"2026-02-04T10:45:52","modified_gmt":"2026-02-04T08:45:52","slug":"%d0%bd%d0%be%d0%b2%d0%b8%d1%82%d0%b5-%d0%b8%d0%b7%d0%b8%d1%81%d0%ba%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-nzeb-%d0%b7%d0%b0%d1%89%d0%be-%d0%b3%d0%b5%d0%be%d1%82%d0%b5%d1%80%d0%bc%d0%b8%d1%8f%d1%82%d0%b0","status":"publish","type":"post","link":"https:\/\/geothron.com\/en\/polezno\/%d0%bd%d0%be%d0%b2%d0%b8%d1%82%d0%b5-%d0%b8%d0%b7%d0%b8%d1%81%d0%ba%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-nzeb-%d0%b7%d0%b0%d1%89%d0%be-%d0%b3%d0%b5%d0%be%d1%82%d0%b5%d1%80%d0%bc%d0%b8%d1%8f%d1%82%d0%b0\/","title":{"rendered":"The new nZEB requirements: Why is geothermal the only \"safe\" solution for investors?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">The entry into force of Regulation No. RD-02-20-3 changed the rules in the construction sector. Now every new building must be \"nearly zero energy\" (nZEB). This poses a serious challenge for investors: how to achieve Class A and the required RES share without making the project unnecessarily expensive.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The Challenge: The 95 kWh\/m2 limit<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The main indicator for obtaining a building permit is the Primary Energy, whose limit value is 95 kWh\/m2 per year. In a modern design with a high percentage of glazing and a load of 70 W\/m2, traditional systems fail:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>TPP:<\/strong> 191.5\u00a0kWh\/m2.<\/li>\n\n\n\n<li><strong>Gas:<\/strong> 167.4\u00a0kWh\/m2.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why does geothermal energy win without photovoltaics?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While air-source heat pumps often balance on the edge of the limit (86.3 kWh\/m2), geothermal energy offers security with a value of only 49.0 kWh\/m2.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"translation-block\">Automatic coverage of the RES norm: The law requires a minimum of 20% of primary energy to come from on-site RES. Geothermal (at COP 6) extracts 5 units of free energy from the ground for 1 unit of electricity. This means an 83% RES share \u2013 4 times above the law.<\/li>\n\n\n\n<li><strong>Space saving<\/strong>: For a building with a total area of \u200b\u200b1428 m2 when heated with a CHP, 273 m2 of photovoltaics are needed to cover the RES norm. For geothermal, the required capacity is <strong>0\u00a0m2<\/strong>, as it fulfills the requirement automatically.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Frequently Asked Questions (FAQ)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question: Can a gas building meet nZEB standards?<\/strong> <strong>Answer:<\/strong> Very difficult. At a load of 70 W\/m2, the gas exceeds the primary energy limit by 76% (167.4 at a limit of 95 kWh\/m2). To compensate for this, you need to install a huge photovoltaic power (about 39.8 kWp), which requires nearly 239 m2 of roof area.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question: Why do air source heat pumps sometimes require photovoltaics, but geothermal ones do not?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Answer:<\/strong> At low outdoor temperatures (\u221210\u2218C to \u221215\u2218C) the efficiency of the air pump drops to COP 1.5-2.0, making it almost like a regular electric heater. The geothermal pump uses the constant temperature of the ground (10\u221212\u2218C) and remains highly efficient 24\/7.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>","protected":false},"excerpt":{"rendered":"<p>\u0412\u043b\u0438\u0437\u0430\u043d\u0435\u0442\u043e \u0432 \u0441\u0438\u043b\u0430 \u043d\u0430 \u041d\u0430\u0440\u0435\u0434\u0431\u0430 \u2116 \u0420\u0414-02-20-3 \u043f\u0440\u043e\u043c\u0435\u043d\u0438 \u043f\u0440\u0430\u0432\u0438\u043b\u0430\u0442\u0430 \u0432 \u0441\u0442\u0440\u043e\u0438\u0442\u0435\u043b\u043d\u0438\u044f \u0441\u0435\u043a\u0442\u043e\u0440. \u0412\u0435\u0447\u0435 \u0432\u0441\u044f\u043a\u0430 \u043d\u043e\u0432\u0430 \u0441\u0433\u0440\u0430\u0434\u0430 \u0442\u0440\u044f\u0431\u0432\u0430 \u0434\u0430 \u0431\u044a\u0434\u0435 \u0441 \u201e\u0431\u043b\u0438\u0437\u043a\u043e \u0434\u043e \u043d\u0443\u043b\u0435\u0432\u043e \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u0435 \u043d\u0430 \u0435\u043d\u0435\u0440\u0433\u0438\u044f\u201c (nZEB). \u0422\u043e\u0432\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u044f \u0438\u043d\u0432\u0435\u0441\u0442\u0438\u0442\u043e\u0440\u0438\u0442\u0435 \u043f\u0440\u0435\u0434 \u0441\u0435\u0440\u0438\u043e\u0437\u043d\u043e \u043f\u0440\u0435\u0434\u0438\u0437\u0432\u0438\u043a\u0430\u0442\u0435\u043b\u0441\u0442\u0432\u043e: \u043a\u0430\u043a \u0434\u0430 \u043f\u043e\u0441\u0442\u0438\u0433\u043d\u0430\u0442 \u041a\u043b\u0430\u0441 \u0410 \u0438 \u0438\u0437\u0438\u0441\u043a\u0443\u0435\u043c\u0438\u044f \u0412\u0415\u0418 \u0434\u044f\u043b, \u0431\u0435\u0437 \u0434\u0430 \u043e\u0441\u043a\u044a\u043f\u044f\u0432\u0430\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0438\u0437\u043b\u0438\u0448\u043d\u043e. \u041f\u0440\u0435\u0434\u0438\u0437\u0432\u0438\u043a\u0430\u0442\u0435\u043b\u0441\u0442\u0432\u043e\u0442\u043e: \u041b\u0438\u043c\u0438\u0442\u044a\u0442 \u043e\u0442 95&nbsp;kWh\/m2 \u041e\u0441\u043d\u043e\u0432\u043d\u0438\u044f\u0442 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b \u0437\u0430 \u043f\u043e\u043b\u0443\u0447\u0430\u0432\u0430\u043d\u0435 [&hellip;]<\/p>","protected":false},"author":2,"featured_media":7196,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7195","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-polezno"],"_links":{"self":[{"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/posts\/7195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/comments?post=7195"}],"version-history":[{"count":1,"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/posts\/7195\/revisions"}],"predecessor-version":[{"id":7197,"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/posts\/7195\/revisions\/7197"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/media\/7196"}],"wp:attachment":[{"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/media?parent=7195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/categories?post=7195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geothron.com\/en\/wp-json\/wp\/v2\/tags?post=7195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}