{"id":30883,"date":"2025-07-03T12:10:52","date_gmt":"2025-07-03T10:10:52","guid":{"rendered":"https:\/\/www.cloudmagazin.com\/2026\/04\/03\/finland-harnesses-data-center-waste-heat-for-the-energy-transition\/"},"modified":"2026-07-12T13:16:29","modified_gmt":"2026-07-12T11:16:29","slug":"finland-harnesses-data-center-waste-heat-for-the-energy-transition","status":"publish","type":"post","link":"https:\/\/www.cloudmagazin.com\/en\/2025\/07\/03\/finland-harnesses-data-center-waste-heat-for-the-energy-transition\/","title":{"rendered":"Finland Harnesses Data Center Waste Heat for the Energy Transition"},"content":{"rendered":"<p style=\"color:#6190a9;font-size:0.9em;margin:0 0 16px;padding:0\">2 min Reading Time<\/p>\n<p><strong>Waste heat from data centers is often lost and can burden the environment &#8211; for example, when discharged into rivers. Finland takes a different approach: it captures this waste heat within a closed-loop system to generate both electricity and district heating. As a welcome side effect, households pay significantly less for their energy.<\/strong><\/p>\n<p>Given rising global temperatures, everyone agrees that an energy transition is urgently needed &#8211; but the path forward remains unclear, at least in Germany. While many German initiatives on this topic end in disputes and innovations rarely progress beyond isolated pilot projects, other countries are already further ahead. Finland, for instance, relies on a closed-loop circular model to repurpose waste heat from data centers for electricity generation and district heating.<\/p>\n<h2>Waste Heat Is Not Waste<\/h2>\n<div id=\"attachment_26438\" style=\"width: 260px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.cloudmagazin.com\/en\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-glRqyWJgUeY-unsplash-scaled.jpg\"><img decoding=\"async\" loading=\"lazy\" aria-describedby=\"caption-attachment-26438\" class=\"wp-image-26438 size-medium\" src=\"https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-glRqyWJgUeY-unsplash-250x167.jpg\" alt=\"\" width=\"250\" height=\"167\" srcset=\"https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-glRqyWJgUeY-unsplash-250x167.jpg 250w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-glRqyWJgUeY-unsplash-700x467.jpg 700w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-glRqyWJgUeY-unsplash-768x513.jpg 768w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-glRqyWJgUeY-unsplash-1536x1025.jpg 1536w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-glRqyWJgUeY-unsplash-2048x1367.jpg 2048w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-glRqyWJgUeY-unsplash-120x80.jpg 120w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/p>\n<p id=\"caption-attachment-26438\" class=\"wp-caption-text\">In Finland, waste heat from data centers is treated as a valuable energy source to produce electricity and heat cost-effectively. (Image source: Unsplash \/ Christina @ wocintechchat.com)<\/p>\n<\/div>\n<p>\u201cWaste heat is not energy waste &#8211; it\u2019s a valuable resource. Its consistent utilization is not only ecologically essential but also a decisive factor for economic efficiency and competitiveness in the energy transition,\u201d quotes <a href=\"https:\/\/www.computerwoche.de\/article\/3987949\/abwarme-aus-rechenzentren-die-energiewende-in-finnland.html\">Computerwoche<\/a> Helmi-Nelli K\u00f6rkk\u00f6, Senior Advisor at <a href=\"https:\/\/www.businessfinland.com\/\">Business Finland<\/a>. According to Business Finland, Finnish households pay just 4.6 cents per kilowatt-hour for electricity. In contrast, German households consuming 4,000 kWh annually pay an average of 36.51 cents per kilowatt-hour, according to a <a href=\"https:\/\/www.verivox.de\/strom\/strompreisentwicklung\/\">Verivox comparison<\/a>.<\/p>\n<p>Unlike Germany, Finland has long moved past the pilot project phase. Starting in July 2026, data centers will be legally required to feed at least 10% of their waste heat into the local energy grid &#8211; within a closed-loop system.<\/p>\n<h2>Hyperscalers Join the Effort in Finland<\/h2>\n<p>Nordic countries like Finland attract many data center operators thanks to their cooler climates, which significantly reduce cooling costs. For example, search engine giant Google has built a data center in the southeastern port city of Hamina, which is expected to cover up to 80% of the region\u2019s district heating demand by late 2025.<\/p>\n<p>Microsoft is pursuing a similar strategy and has announced a partnership with energy provider Fortum to use waste heat from its data centers to warm homes and businesses.<\/p>\n<div style=\"margin:32px 0;border-radius:12px;overflow:hidden\">\n<div style=\"background:linear-gradient(135deg,#004a59 0%,#002535 100%);color:#fff;padding:36px 24px;text-align:center\">\n<div style=\"font-size:clamp(2.2em,8vw,3.5em);font-weight:800;line-height:1;color:#0bb7fd\">80 percent<\/div>\n<div style=\"font-size:1.05em;margin-top:8px;opacity:0.9\">of local district heating demand is expected to be covered. Microsoft aims<\/div>\n<\/div>\n<div style=\"flex-wrap:wrap;gap:0\">\n<div style=\"flex:1;min-width:160px;background:#00364a;color:#fff;padding:20px 16px;text-align:center\">\n<div style=\"font-size:clamp(1.3em,4vw,1.8em);font-weight:800;color:#0bb7fd\">45 percent<\/div>\n<div style=\"font-size:0.8em;margin-top:6px;opacity:0.8;line-height:1.3\">to reduce emissions while simultaneously increasing production by<\/div>\n<\/div>\n<div style=\"flex:1;min-width:160px;background:#00364a;color:#fff;padding:20px 16px;text-align:center\">\n<div style=\"font-size:clamp(1.3em,4vw,1.8em);font-weight:800;color:#0bb7fd\">43 percent<\/div>\n<div style=\"font-size:0.8em;margin-top:6px;opacity:0.8;line-height:1.3\">43%. Header Image Source: Unsplash \/ Joaki<\/div>\n<\/div>\n<\/div>\n<\/div>\n<figure style=\"margin:36px 0;padding:0;\">\n<blockquote style=\"position:relative;margin:0;padding:30px 34px 28px;background:linear-gradient(135deg,#013a47 0%,#004a59 100%);border-radius:12px;box-shadow:0 10px 30px rgba(0,40,60,0.18);overflow:hidden;\"><p>\n<span aria-hidden=\"true\" style=\"position:absolute;right:22px;top:6px;font-family:Georgia,serif;font-size:90px;line-height:1;color:#0bb7fd;opacity:0.18;\">&rdquo;<\/span><\/p>\n<div style=\"font-family:'SF Mono','Monaco','Consolas',monospace;font-size:10.5px;color:#0bb7fd;letter-spacing:0.18em;text-transform:uppercase;margin-bottom:13px;\">\/\/ Key point<\/div>\n<p style=\"margin:0;font-size:1.15em;line-height:1.6;color:#f2fafd;font-weight:500;position:relative;\">The path forward isn\u2019t clear &#8211; at least not in Germany.<\/p>\n<\/blockquote>\n<\/figure>\n<h2>Transparency Builds Public Acceptance<\/h2>\n<p>Implementing solutions like these requires a highly developed digital infrastructure along with sophisticated control and monitoring systems. \u201cThe key lies in intelligently integrating renewable energy, sector coupling through waste heat recovery, and digital control,\u201d explains Helmi-Nelli K\u00f6rkk\u00f6, adding: \u201cThis integrated system creates transparency, maximizes efficiency, and demonstrates a viable path for industrialized nations to ensure secure, clean, and cost-effective energy supply.\u201d<\/p>\n<p>AI-powered forecasting tools such as VTT EnergyTeller also play a role &#8211; they incorporate weather data to accurately predict energy demand and market trends. According to Business Finland, this approach has already helped reduce emissions from purchased energy in Finland\u2019s manufacturing sector by approximately 45%, while simultaneously boosting production by 43%.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: right\"><em>Header Image Source: Unsplash \/ Joakim Honkasalo<\/em><\/p>\n<div id=\"container\">&nbsp;<\/div>\n","protected":false},"excerpt":{"rendered":"Waste heat from data centers is often lost and can burden the environment \u2013 for example, when discharged into rivers. Finland takes a different approach: it captures this waste heat within a closed-loop system to generate both electricity and district heating. As a welcome side effect, households pay significantly less for\u2026 <a class=\"view-article\" href=\"https:\/\/www.cloudmagazin.com\/en\/2025\/07\/03\/finland-harnesses-data-center-waste-heat-for-the-energy-transition\/\">&raquo; Article<\/a>","protected":false},"author":98,"featured_media":26436,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_meta-robots-adv":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_opengraph-image-id":0,"_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","_yoast_wpseo_twitter-image":"","_yoast_wpseo_twitter-image-id":0,"pre_headline":"","bildquelle":"","teasertext":"","language":"de","_evm_slot_owner":"","_evm_translation_lang":"","featured_post":0,"featured_post_sortierung":0,"_wp_old_slug":[],"footnotes":""},"categories":[926],"tags":[],"industry":[],"class_list":["post-30883","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sustainability"],"evm_reading_time_minutes":3,"wpml_language":"en","wpml_translation_of":26433,"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Data center: Reusing waste heat for green energy<\/title>\n<meta name=\"description\" content=\"Data center waste heat solutions: Boost energy efficiency by repurposing waste heat. 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