{"id":91424,"date":"2022-01-24T16:40:16","date_gmt":"2022-01-24T16:40:16","guid":{"rendered":"https:\/\/metropolismag.com\/?post_type=metro_project&#038;p=91424"},"modified":"2022-10-31T18:06:44","modified_gmt":"2022-10-31T18:06:44","slug":"carlo-ratti-hot-heart","status":"publish","type":"metro_project","link":"https:\/\/metropolismag.com\/projects\/carlo-ratti-hot-heart\/","title":{"rendered":"Carlo Ratti Designs a Floating Structure to Heat A City and Create Community"},"content":{"rendered":"\n<div class=\"wp-block-sandow-article-header\">\n<figure class=\"wp-block-image size-large is-header\" style=\"object-fit:cover;object-position:50% 50%\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"770\" src=\"https:\/\/metropolismag.com\/wp-content\/uploads\/2022\/01\/Helsinki_Aerial-1024x770.jpg\" alt=\"Carlo Ratti Associati proposes a group of floating cylindrical islands off the coast of Helsinki to store thermal energy and serve as a community recreation zone.\" class=\"wp-image-91425\" srcset=\"https:\/\/metropolismag.com\/wp-content\/uploads\/2022\/01\/Helsinki_Aerial-1024x770.jpg 1024w, https:\/\/metropolismag.com\/wp-content\/uploads\/2022\/01\/Helsinki_Aerial-300x226.jpg 300w, https:\/\/metropolismag.com\/wp-content\/uploads\/2022\/01\/Helsinki_Aerial-768x578.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-group article-header_intro none\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><p class=\"article-date\" aria-label=\"Post Date\">January 24, 2022<\/p>\n\n\n<h1 class=\"size-large wp-block-heading\">Carlo Ratti Designs a Floating Structure to Heat A City and Create Community<\/h1>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column article-header_meta is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<p class=\"summary size-regular\">One of the winners of <em>Metropolis<\/em>&#8216; first-ever Responsible Disruptors program, Hot Heart, a recreation center, stores thermal energy for the city of Helsinki.<\/p>\n\n\n\n<p class=\"wp-block-sandow-byline byline size-regular\"><span>By: <\/span><a href=\"\/tag\/erin-langner\">Erin Langner<\/a><\/p>\n\n\n<ul class=\"social-share\"><li><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fmetropolismag.com%2Fprojects%2Fcarlo-ratti-hot-heart%2F\" target=\"_blank\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\"><path d=\"M9 8h-3v4h3v12h5v-12h3.642l.358-4h-4v-1.667c0-.955.192-1.333 1.115-1.333h2.885v-5h-3.808c-3.596 0-5.192 1.583-5.192 4.615v3.385z\" \/><\/svg><\/a><\/li><li><a href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https%3A%2F%2Fmetropolismag.com%2Fprojects%2Fcarlo-ratti-hot-heart%2F\" target=\"_blank\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\"><path d=\"M4.98 3.5c0 1.381-1.11 2.5-2.48 2.5s-2.48-1.119-2.48-2.5c0-1.38 1.11-2.5 2.48-2.5s2.48 1.12 2.48 2.5zm.02 4.5h-5v16h5v-16zm7.982 0h-4.968v16h4.969v-8.399c0-4.67 6.029-5.052 6.029 0v8.399h4.988v-10.131c0-7.88-8.922-7.593-11.018-3.714v-2.155z\" \/><\/svg><\/a><\/li><li><a href=\"http:\/\/pinterest.com\/pin\/create\/button\/?url=https%3A%2F%2Fmetropolismag.com%2Fprojects%2Fcarlo-ratti-hot-heart%2F&#038;description=Carlo+Ratti+Designs+a+Floating+Structure+to+Heat+A+City+and+Create+Community\" target=\"_blank\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\"> <path d=\"M12 0c-6.627 0-12 5.372-12 12 0 5.084 3.163 9.426 7.627 11.174-.105-.949-.2-2.405.042-3.441.218-.937 1.407-5.965 1.407-5.965s-.359-.719-.359-1.782c0-1.668.967-2.914 2.171-2.914 1.023 0 1.518.769 1.518 1.69 0 1.029-.655 2.568-.994 3.995-.283 1.194.599 2.169 1.777 2.169 2.133 0 3.772-2.249 3.772-5.495 0-2.873-2.064-4.882-5.012-4.882-3.414 0-5.418 2.561-5.418 5.207 0 1.031.397 2.138.893 2.738.098.119.112.224.083.345l-.333 1.36c-.053.22-.174.267-.402.161-1.499-.698-2.436-2.889-2.436-4.649 0-3.785 2.75-7.262 7.929-7.262 4.163 0 7.398 2.967 7.398 6.931 0 4.136-2.607 7.464-6.227 7.464-1.216 0-2.359-.631-2.75-1.378l-.748 2.853c-.271 1.043-1.002 2.35-1.492 3.146 1.124.347 2.317.535 3.554.535 6.627 0 12-5.373 12-12 0-6.628-5.373-12-12-12z\" fill-rule=\"evenodd\" clip-rule=\"evenodd\" \/><\/svg><\/a><\/li><li><a href=\"mailto:?body=https%3A%2F%2Fmetropolismag.com%2Fprojects%2Fcarlo-ratti-hot-heart%2F&#038;subject=Carlo+Ratti+Designs+a+Floating+Structure+to+Heat+A+City+and+Create+Community\" target=\"_blank\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\"><path d=\"M12 12.713l-11.985-9.713h23.97l-11.985 9.713zm0 2.574l-12-9.725v15.438h24v-15.438l-12 9.725z\"\/><\/svg><\/a><\/li><\/ul><\/div>\n\n\n\n<div class=\"wp-block-column empty-header-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group none\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"size-regular\"><em>Disruption in technology is often associated with negative consequences like social disorder, environmental degradation, and economic marginalization. Facebook (now Meta) founder Mark Zuckerberg summed up this ethos with his early motto \u201cMove fast and break things.\u201d But disruption can also be beneficial. When done right, it can encourage health, wellness, efficiency, and equity. In that spirit, <\/em>Metropolis<em> is thrilled to share the winners of its first Responsible Disruptors program, honoring A&amp;D technology projects that represent significant change for the better.&nbsp;<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p class=\"size-regular\">In Finland, the concept <em>Jokamiehen Oikeudet<\/em>, or \u201cright to roam,\u201d refers to everyone\u2019s freedom to enjoy nature respectfully. Hot Heart, the winning proposal for the Helsinki Energy Challenge\u2014organized by the city to accelerate its transition to carbon neutrality in heating by 2030\u2014takes its inspiration from this humble idea, though it is slated to become the largest infrastructure project of its kind in the world. Created by a cross-disciplinary team coordinated by Turin, Italy\u2013based design firm <a href=\"https:\/\/carloratti.com\/\">Carlo Ratti Associati (CRA)<\/a>, Hot Heart consists of ten cylindrical basins that form a floating, archipelago-like structure situated off the coast of the metropolis. Upon completion around 2028, the unusual complex will serve the dual function of storing thermal energy and serving as a hub for recreational activities.&nbsp;<\/p>\n\n\n\n<p class=\"size-regular\">Designed to act like a giant battery, the floating edifice harvests renewable energy from wind, solar, and other sources at low or negative cost when it is available abundantly. The energy is then converted into heat and stored in the ten tanks until it is needed during the winter. The tanks, which each measure about 740 feet in diameter, can collectively hold up to 2.64 billion gallons of water. \u201cWe know renewables are intermittent. Sometimes we produce too much, sometimes we produce too little,\u201d explains founding partner Carlo Ratti. \u201cIf you use a thermal battery to store electricity, the cost is magnitudes less than other methods.\u201d Hot Heart is projected to provide for all of Helsinki\u2019s heating needs (estimated at 6,000 GWh) by 2028, with zero carbon emissions and at a cost that is lower than today\u2019s expenditures.<\/p>\n\n\n\n<p class=\"size-regular\">Four of the tanks are enclosed in transparent domes that contain what the architects call \u201cfloating forests\u201d\u2014indoor ecosystems that will be naturally heated by the basins below and open to the public for relaxation and socialization. \u201cIn Finland, going to the forest and spending time in nature are very rooted in the local culture,\u201d says Ratti. \u201cBut beyond that, we also see the forests as an opportunity to teach people about climate change, about sustainability, about energy flows. I think that engaging the public is going to be very important as we tackle the climate crisis together.\u201d<\/p>\n\n\n\n<p class=\"comment size-regular\">Would you like to comment on this article? Send your thoughts to: <a href=\"mailto:comments@metropolismag.com\">comments@metropolismag.com<\/a><\/p>\n\n\n<ul class=\"tag-cloud\"><li><a href=\"https:\/\/metropolismag.com\/domains\/cultural\/\" target=\"_blank\" rel=\"nofollow noreferrer\">Cultural<\/a><\/li><li><a href=\"https:\/\/metropolismag.com\/domains\/research\/\" target=\"_blank\" rel=\"nofollow noreferrer\">Research<\/a><\/li><\/ul>\n\n<ul class=\"tag-cloud\"><li><a href=\"https:\/\/metropolismag.com\/tag\/carlo-ratti\/\" target=\"_blank\" rel=\"nofollow noreferrer\">Carlo Ratti<\/a><\/li><li><a href=\"https:\/\/metropolismag.com\/tag\/erin-langner\/\" target=\"_blank\" rel=\"nofollow noreferrer\">Erin Langner<\/a><\/li><\/ul><\/div><\/div>\n\n\n<div class=\"post-cards__wrapper is-condensed-default columns-3 single-row\" data-type=\"metro_viewpoint metro_profile metro_project metro_product\" data-amount=\"3\" ><h3 class=\"section-title\">Latest<\/h3><ul><li class=\"card__metro_product\"><div class=\"post-cards__image\"><a class=\"post-cards__link\" href=\"https:\/\/metropolismag.com\/products\/2024-winter-book\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"634\" src=\"https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/12\/81lOHP7C8lL._SL1500_-1024x634.jpg\" class=\"attachment-large size-large\" alt=\"\" style=\"object-position: 50% 50%;\" srcset=\"https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/12\/81lOHP7C8lL._SL1500_-1024x634.jpg 1024w, https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/12\/81lOHP7C8lL._SL1500_-300x186.jpg 300w, https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/12\/81lOHP7C8lL._SL1500_-768x475.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/div><div class=\"post-cards__content\"><p class=\"type\">Products<\/p><a class=\"post-cards__title-link\" href=\"https:\/\/metropolismag.com\/products\/2024-winter-book\/\"><h4>METROPOLIS\u2019s Ultimate Winter Reading List<\/h4><\/a><p class=\"excerpt\">Whether you\u2019re interested in the future of sustainable interiors or the history of architectural modernism, here are 2024\u2019s top design titles, curated by METROPOLIS editors. <\/p><\/div><\/li><li class=\"card__metro_viewpoint\"><div class=\"post-cards__image\"><a class=\"post-cards__link\" href=\"https:\/\/metropolismag.com\/viewpoints\/porch-an-invitation-to-explore-american-architecture-at-the-venice-biennale\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"816\" src=\"https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/12\/cropped-one_Tim-Hursley_TH141113_RS_MBend-Hale_Fall0114-1024x816.jpg\" class=\"attachment-large size-large\" alt=\"\" style=\"object-position: 50% 50%;\" srcset=\"https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/12\/cropped-one_Tim-Hursley_TH141113_RS_MBend-Hale_Fall0114-1024x816.jpg 1024w, https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/12\/cropped-one_Tim-Hursley_TH141113_RS_MBend-Hale_Fall0114-300x239.jpg 300w, https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/12\/cropped-one_Tim-Hursley_TH141113_RS_MBend-Hale_Fall0114-768x612.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/div><div class=\"post-cards__content\"><p class=\"type\">Viewpoints<\/p><a class=\"post-cards__title-link\" href=\"https:\/\/metropolismag.com\/viewpoints\/porch-an-invitation-to-explore-american-architecture-at-the-venice-biennale\/\"><h4>PORCH: An Invitation to Explore American Architecture at the Venice Biennale<\/h4><\/a><p class=\"excerpt\">Recent scholarship on earth architecture in America highlights larger issues concerning power, extraction, and Indigenous resistance to the settler state and capitalism.\u00a0<\/p><\/div><\/li><li class=\"card__metro_profile\"><div class=\"post-cards__image\"><a class=\"post-cards__link\" href=\"https:\/\/metropolismag.com\/profiles\/20-design-visionaries-from-metropolis-2024\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/07\/ME_24_SUM_FSH_Process-32-1024x683.jpg\" class=\"attachment-large size-large\" alt=\"\" style=\"object-position: 50% 50%;\" srcset=\"https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/07\/ME_24_SUM_FSH_Process-32-1024x683.jpg 1024w, https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/07\/ME_24_SUM_FSH_Process-32-300x200.jpg 300w, https:\/\/metropolismag.com\/wp-content\/uploads\/2024\/07\/ME_24_SUM_FSH_Process-32-768x512.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/div><div class=\"post-cards__content\"><p class=\"type\">Profiles<\/p><a class=\"post-cards__title-link\" href=\"https:\/\/metropolismag.com\/profiles\/20-design-visionaries-from-metropolis-2024\/\"><h4>20 Design Visionaries From METROPOLIS&#8217;s 2024 Coverage<\/h4><\/a><p class=\"excerpt\">Want to understand the next wave of ideas and methods in the built environment? Get reacquainted with these practitioners.<\/p><\/div><\/li><\/ul><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>One of the winners of <em> Metropolis&#8217;<\/em> first-ever Responsible Disruptors program, Hot Heart, a recreation center, stores thermal energy for the city of Helsinki.<\/p>\n","protected":false},"author":1163,"featured_media":91425,"menu_order":0,"template":"","meta":{"_acf_changed":false,"featured_image_focal_point":[],"legacy_WP_ID":0},"tags":[2081,2082],"metro_tax_domain":[8,11],"metro_tax_topic":[16,19],"metro_tax_program":[1971],"metro_issue":[2064],"internal_flag":[],"class_list":["post-91424","metro_project","type-metro_project","status-publish","has-post-thumbnail","hentry","tag-carlo-ratti","tag-erin-langner","metro_tax_domain-cultural","metro_tax_domain-research","metro_tax_topic-cities","metro_tax_topic-sustainability","metro_tax_program-responsible-disruptors","metro_issue-jan-feb-2022"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Carlo Ratti Designs a Floating Structure to Heat A City and Create Community - Metropolis<\/title>\n<meta name=\"description\" content=\"Meet the winners of Metropolis&#039; first-ever Responsible Disruptors program, harness technology for good. 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