{"id":73799,"date":"2023-10-03T10:40:33","date_gmt":"2023-10-03T08:40:33","guid":{"rendered":"https:\/\/www.velasolaris.com\/faq\/why-does-an-energy-deficit-result-even-with-sufficient-supplementary-heating-and-covered-energy-demand\/"},"modified":"2026-02-17T13:52:43","modified_gmt":"2026-02-17T12:52:43","slug":"why-does-an-energy-deficit-result-even-with-sufficient-supplementary-heating-and-covered-energy-demand","status":"publish","type":"faq","link":"https:\/\/www.velasolaris.com\/en\/faq\/why-does-an-energy-deficit-result-even-with-sufficient-supplementary-heating-and-covered-energy-demand\/","title":{"rendered":"Why does an energy deficit result even with sufficient supplementary heating and covered energy demand?"},"content":{"rendered":"\n

In the hot water system, the drinking water cools down in the piping while it is at a standstill. Thus, at the beginning of a tapping, a certain volume of water that is too cold is typically drawn first. The resulting energy deficit is added up and normally amounts to 2-5% of the energy demand per month.<\/p>\n","protected":false},"author":20541,"comment_status":"open","ping_status":"open","template":"","bereich":[541],"software":[902],"class_list":["post-73799","faq","type-faq","status-publish","hentry","bereich-simulation-en","software-polysun-energy-modeling"],"acf":[],"yoast_head":"\nWhy does an energy deficit result even with sufficient supplementary heating and covered energy demand? - POLYSUN<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why does an energy deficit result even with sufficient supplementary heating and covered energy demand?\" \/>\n<meta property=\"og:description\" content=\"In the hot water system, the drinking water cools down in the piping while...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.velasolaris.com\/en\/faq\/why-does-an-energy-deficit-result-even-with-sufficient-supplementary-heating-and-covered-energy-demand\/\" \/>\n<meta property=\"og:site_name\" content=\"POLYSUN\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/polysun.switzerland\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-17T12:52:43+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.velasolaris.com\\\/en\\\/faq\\\/why-does-an-energy-deficit-result-even-with-sufficient-supplementary-heating-and-covered-energy-demand\\\/\",\"url\":\"https:\\\/\\\/www.velasolaris.com\\\/en\\\/faq\\\/why-does-an-energy-deficit-result-even-with-sufficient-supplementary-heating-and-covered-energy-demand\\\/\",\"name\":\"Why does an energy deficit result even with sufficient supplementary heating and covered energy demand? 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