{"id":1648,"date":"2026-04-30T12:32:23","date_gmt":"2026-04-30T10:32:23","guid":{"rendered":"https:\/\/www.energyevolutioncenter.se\/?post_type=activity_event&#038;p=1648"},"modified":"2026-04-30T12:36:14","modified_gmt":"2026-04-30T10:36:14","slug":"studiebesok-sandlager-kalby","status":"publish","type":"activity_event","link":"https:\/\/www.energyevolutioncenter.se\/en_gb\/aktivitet\/studiebesok-sandlager-kalby\/","title":{"rendered":"Study visit Sand storage K\u00e4lby"},"content":{"rendered":"<h1 data-section-id=\"1dfhgo7\" data-start=\"121\" data-end=\"164\">Study visit: Sand energy storage in practice<\/h1>\n<h2 data-start=\"166\" data-end=\"235\">How can we store summer solar heat \u2013 and use it in the middle of winter?<\/h2>\n<p data-start=\"237\" data-end=\"476\">Welcome to a study visit to K\u00e4lby group housing where an innovative sand energy storage is in operation. Here you will get a concrete insight into how the technology works, what effects it has and what opportunities it creates for the energy system of the future.<\/p>\n<hr data-start=\"478\" data-end=\"481\" \/>\n<p data-start=\"483\" data-end=\"721\">\ud83d\udcc5 <strong data-start=\"486\" data-end=\"496\">Date:<\/strong> May 28, 2026<br data-start=\"508\" data-end=\"511\" \/>\ud83d\udd52 <strong data-start=\"514\" data-end=\"522\">Time:<\/strong> 08.45\u2013approx. 11.00<br data-start=\"537\" data-end=\"540\" \/>\ud83d\udccd <strong data-start=\"543\" data-end=\"553\">Place:<\/strong> Departure from Energy Evolution Center (bus included)<br data-start=\"602\" data-end=\"605\" \/>\ud83d\udcb0 <strong data-start=\"608\" data-end=\"620\">Cost:<\/strong> Free of charge<br data-start=\"634\" data-end=\"637\" \/>\u27a1\ufe0f <strong data-start=\"640\" data-end=\"652\">Registration:<\/strong> via the form below <em data-start=\"674\" data-end=\"719\">(use the form \u2013 not the calendar invitation)<\/em><\/p>\n<hr data-start=\"723\" data-end=\"726\" \/>\n<h2 data-section-id=\"vescaw\" data-start=\"728\" data-end=\"753\">This is what you get with you<\/h2>\n<ul data-start=\"755\" data-end=\"939\">\n<li data-section-id=\"5d7yl7\" data-start=\"755\" data-end=\"821\">A concrete understanding of how seasonal heat storage works<\/li>\n<li data-section-id=\"1wmsioa\" data-start=\"822\" data-end=\"891\">Insight into how the technology can be used in properties and energy systems<\/li>\n<li data-section-id=\"wtko00\" data-start=\"892\" data-end=\"939\">Opportunity to ask questions directly on site<\/li>\n<\/ul>\n<hr data-start=\"941\" data-end=\"944\" \/>\n<h2 data-section-id=\"1wn5woj\" data-start=\"946\" data-end=\"960\">About the system<\/h2>\n<p data-start=\"962\" data-end=\"1160\">The technology is based on solar heat being collected during spring and summer and stored in an insulated layer of stone powder in the ground. When energy demand increases during winter, the heat is retrieved using a heat pump.<\/p>\n<p data-start=\"1162\" data-end=\"1335\">The storage gradually heats up during the summer, reaching its highest temperature in early autumn. The energy is then used during the winter months, before the cycle starts again in the spring.<\/p>\n<p data-start=\"1337\" data-end=\"1400\">Read more about the solution at <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\"><a href=\"https:\/\/norconsult.se\/aktuellt\/tvaa-patent-som-lagrar-solens-energi\">Norconsult.<\/a><\/span><\/span><\/p>\n<hr data-start=\"1402\" data-end=\"1405\" \/>\n<h2 data-section-id=\"6y8n81\" data-start=\"1407\" data-end=\"1417\">Program<\/h2>\n<p data-start=\"1419\" data-end=\"1475\"><strong data-start=\"1419\" data-end=\"1438\">08.45 \u2013 Gathering<\/strong><br data-start=\"1438\" data-end=\"1441\" \/>Energy Evolution Center (back)<\/p>\n<p data-start=\"1477\" data-end=\"1525\"><strong data-start=\"1477\" data-end=\"1495\">09.00 \u2013 Departure<\/strong><br data-start=\"1495\" data-end=\"1498\" \/>Shared transport by bus<\/p>\n<p data-start=\"1527\" data-end=\"1585\"><strong data-start=\"1527\" data-end=\"1550\">09.30 \u2013 Study visit<\/strong><br data-start=\"1550\" data-end=\"1553\" \/>Overview of the facility + coffee break<\/p>\n<p data-start=\"1587\" data-end=\"1606\"><strong data-start=\"1587\" data-end=\"1606\">10.20 \u2013 Return trip<\/strong><\/p>\n<p data-start=\"1608\" data-end=\"1639\"><strong data-start=\"1608\" data-end=\"1639\">No later than 11.00 \u2013 Back at EEC<\/strong><\/p>\n<hr data-start=\"1641\" data-end=\"1644\" \/>\n<h2 data-section-id=\"6lqgiv\" data-start=\"1646\" data-end=\"1667\">Important information<\/h2>\n<p data-start=\"1669\" data-end=\"1691\"><strong data-start=\"1669\" data-end=\"1689\">Protective equipment<\/strong><\/p>\n<ul data-start=\"1692\" data-end=\"1834\">\n<li data-section-id=\"1mswsj9\" data-start=\"1692\" data-end=\"1766\">High-visibility vest required (bring your own or indicate in the registration if you need to borrow one)<\/li>\n<li data-section-id=\"hbsax1\" data-start=\"1767\" data-end=\"1834\">Safety shoes are required (please state shoe size in registration if you need to borrow one)<\/li>\n<\/ul>\n<p>For questions, please contact <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Anders Levay: <a href=\"mailto:anders.levay@eskilstuna.se\">anders.levay@eskilstuna.se<\/a>, \u00a0070-340 24 72<\/span><\/span><\/p>","protected":false},"featured_media":1652,"template":"","class_list":["post-1648","activity_event","type-activity_event","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.energyevolutioncenter.se\/en_gb\/wp-json\/wp\/v2\/activity_event\/1648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.energyevolutioncenter.se\/en_gb\/wp-json\/wp\/v2\/activity_event"}],"about":[{"href":"https:\/\/www.energyevolutioncenter.se\/en_gb\/wp-json\/wp\/v2\/types\/activity_event"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.energyevolutioncenter.se\/en_gb\/wp-json\/wp\/v2\/media\/1652"}],"wp:attachment":[{"href":"https:\/\/www.energyevolutioncenter.se\/en_gb\/wp-json\/wp\/v2\/media?parent=1648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}