{"id":67306,"date":"2026-03-02T16:49:42","date_gmt":"2026-03-02T15:49:42","guid":{"rendered":"https:\/\/www.idm-energie.at\/?page_id=67306"},"modified":"2026-07-06T16:19:10","modified_gmt":"2026-07-06T14:19:10","slug":"electricity-consumption","status":"publish","type":"page","link":"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/electricity-consumption\/","title":{"rendered":"Electricity Consumption"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1185.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><nav class=\"fusion-breadcrumbs fusion-breadcrumbs-1\" style=\"--awb-margin-top:1%;--awb-breadcrumb-sep:&#039;\/&#039;;\" aria-label=\"Breadcrumb\"><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/nav><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-one\" style=\"--awb-margin-top:3%;--awb-margin-bottom:3%;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:42;line-height:1;\">Electricity Consumption in Heat Pump Efficiency<\/h1><\/div><div class=\"fusion-text fusion-text-1\"><p>Electricity consumption is the \u201creal-world outcome\u201d of heat pump efficiency. A heat pump can deliver several units of heat per unit of electricity, but the total electricity used over a season depends on more than the compressor alone. It also includes auxiliary components (pumps, controls), operating modes (defrost, hot water), and how demanding the building is (heat load and required flow temperature).<\/p>\n<ul>\n<li>How much heat does the building need? (heat demand)<\/li>\n<li>How efficiently does the system deliver that heat using electricity? (seasonal\/system efficiency)<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-stretch fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"max-width:1185.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion-flex-column\" style=\"--awb-padding-top:1%;--awb-padding-right:2%;--awb-padding-left:2%;--awb-overflow:hidden;--awb-bg-color:#fff042;--awb-bg-color-hover:#fff042;--awb-bg-size:cover;--awb-border-radius:16px 16px 16px 16px;--awb-width-large:800px;--awb-margin-top-large:0px;--awb-spacing-right-large:2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-paragraph blink-heading\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;--awb-font-size:20px;\"><p class=\"fusion-title-heading title-heading-center title-heading-tag fusion-responsive-typography-calculated\" style=\"margin:0;text-transform:uppercase;font-size:1em;--fontSize:20;line-height:1.8;\"><strong>Configure your personalized heat pump system!<\/strong><\/p><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-stretch fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"--awb-flex-grow:0;--awb-flex-grow-medium:0;--awb-flex-grow-small:0;--awb-flex-shrink:0;--awb-flex-shrink-medium:0;--awb-flex-shrink-small:0;width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-0 fusion_builder_column_inner_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:-5px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-2\" style=\"--awb-margin-left:2%;\"><p style=\"text-align: left;\">Plan your heat pump system with iDM Energiesysteme. Discover efficient heating, cooling, and hot water solutions for new buildings, renovations, and modern energy systems. Configure and personalize your iDM heat pump solution in just a few clicks.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-1 fusion_builder_column_inner_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:2.88%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2.88%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-3\"><div style=\"display: flex; align-items: center; gap: 15px; flex-wrap: wrap;\">\n<div style=\"display: flex;\"><img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73518 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-150x150.jpg\" alt=\"Thomas Pletzer\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73509 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-150x150.jpg\" alt=\"Matthias Steiner\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73500 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-150x150.jpg\" alt=\"Christian Hutter\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73491 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-150x150.jpg\" alt=\"Adrian Egger\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/div>\n<div style=\"color: #000000; line-height: 0.7; margin-left: 2%;\"><strong style=\"display: block;\">CONNECT WITH OUR EXPERTS<\/strong><br \/>\n<span style=\"opacity: 0.8;\">50+ Years of Heat Pumps Experience<\/span><\/div>\n<\/div>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-2 fusion_builder_column_inner_1_3 1_3 fusion-flex-column fusion-flex-align-self-center\" style=\"--awb-bg-size:cover;--awb-width-large:33.333333333333%;--awb-margin-top-large:0px;--awb-spacing-right-large:5.76%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:5.76%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-center fusion-content-layout-column\"><div style=\"text-align:center;\"><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/konfigurator.myidm.at\/#\/?lang=EN\" rel=\"noopener\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Configure Now!<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1185.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-4\">\n<\/div><div class=\"fusion-text fusion-text-5\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/electricity-consumption\/#What_%E2%80%9Celectricity_consumption%E2%80%9D_includes_in_a_heat_pump_system\" >What \u201celectricity consumption\u201d includes in a heat pump system<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/electricity-consumption\/#The_core_relationship_heat_demand_and_seasonal_efficiency\" >The core relationship: heat demand and seasonal efficiency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/electricity-consumption\/#Why_electricity_consumption_changes_from_one_building_to_another\" >Why electricity consumption changes from one building to another<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/electricity-consumption\/#Standard_ratings_vs_real_electricity_consumption\" >Standard ratings vs real electricity consumption<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/electricity-consumption\/#What_to_check_if_electricity_consumption_seems_high\" >What to check if electricity consumption seems high<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/electricity-consumption\/#Frequently_Asked_Questions_FAQs\" >Frequently Asked Questions (FAQs)<\/a><\/li><\/ul><\/nav><\/div>\n<h2 data-start=\"733\" data-end=\"797\"><span class=\"ez-toc-section\" id=\"What_%E2%80%9Celectricity_consumption%E2%80%9D_includes_in_a_heat_pump_system\"><\/span>What \u201celectricity consumption\u201d includes in a heat pump system<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"799\" data-end=\"856\">A heat pump system\u2019s electricity consumption can include:<\/p>\n<ul data-start=\"858\" data-end=\"1274\">\n<li data-start=\"858\" data-end=\"900\">\n<p data-start=\"860\" data-end=\"900\"><strong data-start=\"860\" data-end=\"886\">Compressor electricity<\/strong> (main driver)<\/p>\n<\/li>\n<li data-start=\"901\" data-end=\"944\">\n<p data-start=\"903\" data-end=\"944\"><strong data-start=\"903\" data-end=\"911\">Fans<\/strong> (especially in air-source units)<\/p>\n<\/li>\n<li data-start=\"945\" data-end=\"1020\">\n<p data-start=\"947\" data-end=\"1020\"><strong data-start=\"947\" data-end=\"968\">Circulation pumps<\/strong> (source side and heating side, depending on design)<\/p>\n<\/li>\n<li data-start=\"1021\" data-end=\"1053\">\n<p data-start=\"1023\" data-end=\"1053\"><strong data-start=\"1023\" data-end=\"1053\">Controls and standby power<\/strong><\/p>\n<\/li>\n<li data-start=\"1054\" data-end=\"1119\">\n<p data-start=\"1056\" data-end=\"1119\"><strong data-start=\"1056\" data-end=\"1074\">Defrost energy<\/strong> (air-source units in humid, cold conditions)<\/p>\n<\/li>\n<li data-start=\"1120\" data-end=\"1186\">\n<p data-start=\"1122\" data-end=\"1186\"><strong data-start=\"1122\" data-end=\"1159\">Backup\/auxiliary electric heating<\/strong> (if present and activated)<\/p>\n<\/li>\n<li data-start=\"1187\" data-end=\"1274\">\n<p data-start=\"1189\" data-end=\"1274\"><strong data-start=\"1189\" data-end=\"1221\">Hot water temperature cycles<\/strong> (higher temperature operation increases input power)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1276\" data-end=\"1524\">SEAI explicitly notes that overall efficiency depends on electricity consumption of other system components, including circulation pumps and electric heaters during defrost or water temperature increase cycles.<\/p>\n<\/div><div class=\"fusion-image-element\" style=\"text-align:center;--awb-margin-top:2%;--awb-margin-bottom:2%;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\" style=\"border:3px solid #333333;\"><img decoding=\"async\" width=\"1024\" height=\"559\" alt=\"Infographic comparing electricity consumption and heat output for less efficient (COP &lt; 3.0) and more efficient (COP &gt; 4.0) heat pumps.\" title=\"electricity-consumption\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/03\/electricity-consumption-1024x559.webp\" class=\"img-responsive wp-image-67319\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/03\/electricity-consumption-200x109.webp 200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/03\/electricity-consumption-400x218.webp 400w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/03\/electricity-consumption-600x327.webp 600w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/03\/electricity-consumption-800x436.webp 800w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/03\/electricity-consumption-1200x655.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><div class=\"fusion-text fusion-text-6\"><h2 data-start=\"1531\" data-end=\"1592\"><span class=\"ez-toc-section\" id=\"The_core_relationship_heat_demand_and_seasonal_efficiency\"><\/span>The core relationship: heat demand and seasonal efficiency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"1594\" data-end=\"1668\">A simple way to think about seasonal electricity use for space heating is:<\/p>\n<p data-start=\"1670\" data-end=\"1742\"><strong data-start=\"1670\" data-end=\"1742\">Seasonal electricity \u2248 Seasonal heat delivered \/ Seasonal efficiency<\/strong><\/p>\n<p data-start=\"1744\" data-end=\"1781\">Where \u201cseasonal efficiency\u201d might be:<\/p>\n<ul data-start=\"1783\" data-end=\"1893\">\n<li data-start=\"1783\" data-end=\"1830\">\n<p data-start=\"1785\" data-end=\"1830\"><strong data-start=\"1785\" data-end=\"1793\">SCOP<\/strong> (standardized seasonal rating), or<\/p>\n<\/li>\n<li data-start=\"1831\" data-end=\"1893\">\n<p data-start=\"1833\" data-end=\"1893\"><strong data-start=\"1833\" data-end=\"1840\">SPF<\/strong> (measured seasonal\/system performance from metering)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1895\" data-end=\"2092\">SEAI\u2019s implementation guidance states directly that a heat pump system with a higher SPF consumes less electricity to meet the heating requirement over a year.<\/p>\n<h2 data-start=\"2099\" data-end=\"2166\"><span class=\"ez-toc-section\" id=\"Why_electricity_consumption_changes_from_one_building_to_another\"><\/span>Why electricity consumption changes from one building to another<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2168\" data-end=\"2285\">Even with the same heat pump model, electricity consumption can differ widely because of system and building factors.<\/p>\n<h3 data-start=\"2287\" data-end=\"2317\">Flow temperature demand<\/h3>\n<p data-start=\"2318\" data-end=\"2587\">Higher flow temperature increases the temperature lift the heat pump must achieve, which typically increases electrical input for the same heat output. This is one of the most direct system-level drivers of electricity consumption.<\/p>\n<h3 data-start=\"2589\" data-end=\"2640\">Outdoor temperature and defrost (air-source)<\/h3>\n<p data-start=\"2641\" data-end=\"2973\">Cold outdoor conditions reduce available environmental heat and can trigger defrost cycles, both of which increase electricity consumption per unit of delivered heat. Defrost and related auxiliary electricity are explicitly referenced as important contributors in system efficiency discussions.<\/p>\n<h3 data-start=\"2975\" data-end=\"3013\">Part-load operation and cycling<\/h3>\n<p data-start=\"3014\" data-end=\"3241\">Heat pumps often operate at part load for much of the year. Poor control setup or oversizing can lead to frequent cycling (start-stop operation), which increases losses and electricity use.<\/p>\n<h3 data-start=\"3243\" data-end=\"3281\">Auxiliary component electricity<\/h3>\n<p data-start=\"3282\" data-end=\"3508\">Even if compressor efficiency is strong, pump and control electricity can add up over thousands of hours. This is a key reason system efficiency can be lower than \u201cunit-only\u201d expectations.<\/p>\n<h3 data-start=\"3510\" data-end=\"3544\">Domestic hot water settings<\/h3>\n<p data-start=\"3545\" data-end=\"3820\">Hot water production typically requires higher temperatures than space heating. Higher hot water setpoints and frequent reheating cycles can increase electricity consumption because the heat pump operates under more demanding conditions.<\/p>\n<h2 data-start=\"3827\" data-end=\"3878\"><span class=\"ez-toc-section\" id=\"Standard_ratings_vs_real_electricity_consumption\"><\/span>Standard ratings vs real electricity consumption<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-start=\"3880\" data-end=\"3921\">COP and EER (single operating points)<\/h3>\n<p data-start=\"3922\" data-end=\"4083\">COP and EER are measured at defined test conditions and help compare performance at a point, but they do not predict annual electricity consumption on their own.<\/p>\n<h3 data-start=\"4085\" data-end=\"4117\">SCOP \/ \u03b7s (seasonal ratings)<\/h3>\n<p data-start=\"4118\" data-end=\"4410\">In Europe, seasonal performance frameworks account for part-load behavior and auxiliary electricity in a standardized way. Seasonal space heating energy efficiency <strong data-start=\"4282\" data-end=\"4288\">\u03b7s<\/strong> explicitly incorporates seasonal performance and auxiliary electricity consumption.<\/p>\n<h3 data-start=\"4412\" data-end=\"4446\">SPF (measured, real operation)<\/h3>\n<p data-start=\"4447\" data-end=\"4758\">SPF is calculated from metering and reflects the installed system. Real monitoring projects show typical achieved SPF values in practice; for example, a Fraunhofer ISE field monitoring project reported average SPF performance for air\/water heat pumps in existing buildings.<\/p>\n<p data-start=\"4760\" data-end=\"4964\"><strong data-start=\"4793\" data-end=\"4924\">Seasonal ratings are useful for comparing products, but your electricity consumption depends on your building and system setup.<\/strong><\/p>\n<h2 data-start=\"4971\" data-end=\"5025\"><span class=\"ez-toc-section\" id=\"What_to_check_if_electricity_consumption_seems_high\"><\/span>What to check if electricity consumption seems high<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"5027\" data-end=\"5104\">These are common drivers that often explain higher-than-expected consumption:<\/p>\n<ul data-start=\"5106\" data-end=\"5581\">\n<li data-start=\"5106\" data-end=\"5176\">\n<p data-start=\"5108\" data-end=\"5176\">Flow temperature set higher than necessary (heating curve too steep)<\/p>\n<\/li>\n<li data-start=\"5177\" data-end=\"5259\">\n<p data-start=\"5179\" data-end=\"5259\">Heat emitters or hydraulic distribution not supporting low-temperature operation<\/p>\n<\/li>\n<li data-start=\"5260\" data-end=\"5305\">\n<p data-start=\"5262\" data-end=\"5305\">Frequent cycling at mild weather conditions<\/p>\n<\/li>\n<li data-start=\"5306\" data-end=\"5348\">\n<p data-start=\"5308\" data-end=\"5348\">Backup heater running more than expected<\/p>\n<\/li>\n<li data-start=\"5349\" data-end=\"5389\">\n<p data-start=\"5351\" data-end=\"5389\">Pumps running constantly at high speed<\/p>\n<\/li>\n<li data-start=\"5390\" data-end=\"5461\">\n<p data-start=\"5392\" data-end=\"5461\">Defrost happening frequently (location, airflow, humidity conditions)<\/p>\n<\/li>\n<li data-start=\"5462\" data-end=\"5581\">\n<p data-start=\"5464\" data-end=\"5581\">Hot water setpoints and schedules causing frequent high-temperature operation<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"5611\" data-end=\"5705\">Electricity consumption is the practical expression of heat pump efficiency in the real world.<\/p>\n<p data-start=\"5707\" data-end=\"5723\">It is shaped by:<\/p>\n<ul data-start=\"5725\" data-end=\"5868\">\n<li data-start=\"5725\" data-end=\"5763\">\n<p data-start=\"5727\" data-end=\"5763\"><strong data-start=\"5727\" data-end=\"5763\">how much heat the building needs<\/strong><\/p>\n<\/li>\n<li data-start=\"5764\" data-end=\"5815\">\n<p data-start=\"5766\" data-end=\"5815\"><strong data-start=\"5766\" data-end=\"5815\">how efficiently the system delivers that heat<\/strong><\/p>\n<\/li>\n<li data-start=\"5816\" data-end=\"5868\">\n<p data-start=\"5818\" data-end=\"5868\"><strong data-start=\"5818\" data-end=\"5868\">how much auxiliary electricity the system uses<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"5870\" data-end=\"6167\">If you want the most reliable picture of expected electricity use, focus on seasonal\/system metrics (SCOP for standardized comparison, SPF for real operation) and the system factors that drive them\u2014especially flow temperature, controls, and auxiliary loads.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-4 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-stretch fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"max-width:1185.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion-flex-column\" style=\"--awb-padding-top:1%;--awb-padding-right:2%;--awb-padding-left:2%;--awb-overflow:hidden;--awb-bg-color:#fff042;--awb-bg-color-hover:#fff042;--awb-bg-size:cover;--awb-border-radius:16px 16px 16px 16px;--awb-width-large:800px;--awb-margin-top-large:0px;--awb-spacing-right-large:2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-paragraph blink-heading\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;--awb-font-size:20px;\"><p class=\"fusion-title-heading title-heading-center title-heading-tag fusion-responsive-typography-calculated\" style=\"margin:0;text-transform:uppercase;font-size:1em;--fontSize:20;line-height:1.8;\"><strong>Configure your personalized heat pump system!<\/strong><\/p><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-stretch fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"--awb-flex-grow:0;--awb-flex-grow-medium:0;--awb-flex-grow-small:0;--awb-flex-shrink:0;--awb-flex-shrink-medium:0;--awb-flex-shrink-small:0;width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-3 fusion_builder_column_inner_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:-5px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-7\" style=\"--awb-margin-left:2%;\"><p style=\"text-align: left;\">Plan your heat pump system with iDM Energiesysteme. Discover efficient heating, cooling, and hot water solutions for new buildings, renovations, and modern energy systems. Configure and personalize your iDM heat pump solution in just a few clicks.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-4 fusion_builder_column_inner_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:2.88%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2.88%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-8\"><div style=\"display: flex; align-items: center; gap: 15px; flex-wrap: wrap;\">\n<div style=\"display: flex;\"><img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73518 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-150x150.jpg\" alt=\"Thomas Pletzer\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73509 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-150x150.jpg\" alt=\"Matthias Steiner\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73500 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-150x150.jpg\" alt=\"Christian Hutter\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73491 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-150x150.jpg\" alt=\"Adrian Egger\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/div>\n<div style=\"color: #000000; line-height: 0.7; margin-left: 2%;\"><strong style=\"display: block;\">CONNECT WITH OUR EXPERTS<\/strong><br \/>\n<span style=\"opacity: 0.8;\">50+ Years of Heat Pumps Experience<\/span><\/div>\n<\/div>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-5 fusion_builder_column_inner_1_3 1_3 fusion-flex-column fusion-flex-align-self-center\" style=\"--awb-bg-size:cover;--awb-width-large:33.333333333333%;--awb-margin-top-large:0px;--awb-spacing-right-large:5.76%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:5.76%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-center fusion-content-layout-column\"><div style=\"text-align:center;\"><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-2 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/konfigurator.myidm.at\/#\/?lang=EN\" rel=\"noopener\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Configure Now!<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-5 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1185.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-9 fusion-text-no-margin\" style=\"--awb-margin-bottom:5px;\"><h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQs\"><\/span>Frequently Asked Questions (FAQs)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div><div class=\"accordian fusion-accordian\" style=\"--awb-border-size:1px;--awb-icon-size:16px;--awb-content-font-size:15px;--awb-icon-alignment:right;--awb-hover-color:#f9f9fb;--awb-border-color:#e2e2e2;--awb-background-color:#ffffff;--awb-divider-color:#e2e2e2;--awb-divider-hover-color:#e2e2e2;--awb-icon-color:#009fe3;--awb-title-color:#59682f;--awb-content-color:#3f3f3f;--awb-icon-box-color:#212934;--awb-toggle-hover-accent-color:#009fe3;--awb-title-font-family:&quot;Aller&quot;;--awb-title-font-weight:700;--awb-title-font-style:normal;--awb-title-font-size:18px;--awb-content-font-family:&quot;Aller&quot;;--awb-content-font-style:normal;--awb-content-font-weight:400;\"><div class=\"panel-group fusion-toggle-icon-right fusion-toggle-icon-unboxed\" id=\"accordion-67306-1\"><div class=\"fusion-panel panel-default panel-b4033220647bf9747 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_b4033220647bf9747\"><a aria-expanded=\"false\" aria-controls=\"b4033220647bf9747\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-67306-1\" data-target=\"#b4033220647bf9747\" href=\"#b4033220647bf9747\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">1. What does \u201celectricity consumption\u201d mean for a heat pump?<\/span><\/a><\/h4><\/div><div id=\"b4033220647bf9747\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_b4033220647bf9747\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>Electricity consumption is the total electrical energy a heat pump system uses over time to provide heating (and often hot water and cooling). It includes compressor electricity and can also include fans, circulation pumps, controls\/standby power, defrost operation (air-source systems), and backup electric heating if it runs.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-2dec982f76dd88ae5 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_2dec982f76dd88ae5\"><a aria-expanded=\"false\" aria-controls=\"2dec982f76dd88ae5\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-67306-1\" data-target=\"#2dec982f76dd88ae5\" href=\"#2dec982f76dd88ae5\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">2. How is electricity consumption related to heat pump efficiency?<\/span><\/a><\/h4><\/div><div id=\"2dec982f76dd88ae5\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_2dec982f76dd88ae5\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"724\" data-end=\"807\">Efficiency describes how much useful heat the system delivers per unit of electricity. If seasonal efficiency is higher, the system generally needs less electricity to deliver the same amount of heat. Electricity consumption depends on both the building\u2019s heat demand and the system\u2019s seasonal\/system efficiency.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-a466362ac053a52f5 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_a466362ac053a52f5\"><a aria-expanded=\"false\" aria-controls=\"a466362ac053a52f5\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-67306-1\" data-target=\"#a466362ac053a52f5\" href=\"#a466362ac053a52f5\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">3. Why can two homes with the same heat pump have different electricity use?<\/span><\/a><\/h4><\/div><div id=\"a466362ac053a52f5\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_a466362ac053a52f5\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"897\" data-end=\"993\">Because electricity consumption is strongly affected by building and system conditions, such as:<\/p>\n<ul data-start=\"994\" data-end=\"1288\">\n<li data-start=\"994\" data-end=\"1028\">\n<p data-start=\"996\" data-end=\"1028\">insulation level and heat load<\/p>\n<\/li>\n<li data-start=\"1029\" data-end=\"1082\">\n<p data-start=\"1031\" data-end=\"1082\">required flow temperature and heat emitter design<\/p>\n<\/li>\n<li data-start=\"1083\" data-end=\"1137\">\n<p data-start=\"1085\" data-end=\"1137\">outdoor climate and defrost frequency (air-source)<\/p>\n<\/li>\n<li data-start=\"1138\" data-end=\"1179\">\n<p data-start=\"1140\" data-end=\"1179\">control strategy and cycling behavior<\/p>\n<\/li>\n<li data-start=\"1180\" data-end=\"1232\">\n<p data-start=\"1182\" data-end=\"1232\">auxiliary electricity use from pumps and standby<\/p>\n<\/li>\n<li data-start=\"1233\" data-end=\"1288\">\n<p data-start=\"1235\" data-end=\"1288\">domestic hot water temperature settings and schedules<\/p>\n<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-7c2a022d8484c61c0 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_7c2a022d8484c61c0\"><a aria-expanded=\"false\" aria-controls=\"7c2a022d8484c61c0\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-67306-1\" data-target=\"#7c2a022d8484c61c0\" href=\"#7c2a022d8484c61c0\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">4. What parts of a heat pump system use electricity?<\/span><\/a><\/h4><\/div><div id=\"7c2a022d8484c61c0\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_7c2a022d8484c61c0\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1347\" data-end=\"1357\">Typically:<\/p>\n<ul data-start=\"1358\" data-end=\"1601\">\n<li data-start=\"1358\" data-end=\"1386\">\n<p data-start=\"1360\" data-end=\"1386\">compressor (main driver)<\/p>\n<\/li>\n<li data-start=\"1387\" data-end=\"1421\">\n<p data-start=\"1389\" data-end=\"1421\">outdoor fan (air-source units)<\/p>\n<\/li>\n<li data-start=\"1422\" data-end=\"1472\">\n<p data-start=\"1424\" data-end=\"1472\">circulation pumps (depending on system design)<\/p>\n<\/li>\n<li data-start=\"1473\" data-end=\"1514\">\n<p data-start=\"1475\" data-end=\"1514\">electronic controls and standby power<\/p>\n<\/li>\n<li data-start=\"1515\" data-end=\"1549\">\n<p data-start=\"1517\" data-end=\"1549\">defrost operation (air-source)<\/p>\n<\/li>\n<li data-start=\"1550\" data-end=\"1601\">\n<p data-start=\"1552\" data-end=\"1601\">backup electric heater (if present and activated)<\/p>\n<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-228ed58ea028397e2 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_228ed58ea028397e2\"><a aria-expanded=\"false\" aria-controls=\"228ed58ea028397e2\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-67306-1\" data-target=\"#228ed58ea028397e2\" href=\"#228ed58ea028397e2\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">5. Does a high COP guarantee low electricity consumption?<\/span><\/a><\/h4><\/div><div id=\"228ed58ea028397e2\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_228ed58ea028397e2\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1730\" data-end=\"1733\">No. COP is measured at a specific test condition and does not represent all seasonal operating conditions. Seasonal electricity consumption depends more on seasonal\/system performance (such as SCOP or measured SPF), plus how the system is installed and controlled.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-97a4dd7335806df44 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_97a4dd7335806df44\"><a aria-expanded=\"false\" aria-controls=\"97a4dd7335806df44\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-67306-1\" data-target=\"#97a4dd7335806df44\" href=\"#97a4dd7335806df44\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">6. Why does high flow temperature increase electricity consumption?<\/span><\/a><\/h4><\/div><div id=\"97a4dd7335806df44\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_97a4dd7335806df44\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1967\" data-end=\"2008\">Higher flow temperature increases the temperature lift the heat pump must produce. That usually increases compressor work and reduces efficiency, which raises electricity consumption for the same heating output.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-1de66e8f90f2fd0a3 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_1de66e8f90f2fd0a3\"><a aria-expanded=\"false\" aria-controls=\"1de66e8f90f2fd0a3\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-67306-1\" data-target=\"#1de66e8f90f2fd0a3\" href=\"#1de66e8f90f2fd0a3\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">7. What are common reasons for unexpectedly high electricity consumption?<\/span><\/a><\/h4><\/div><div id=\"1de66e8f90f2fd0a3\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_1de66e8f90f2fd0a3\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"2294\" data-end=\"2316\">Common causes include:<\/p>\n<ul data-start=\"2317\" data-end=\"2643\">\n<li data-start=\"2317\" data-end=\"2377\">\n<p data-start=\"2319\" data-end=\"2377\">flow temperature or heating curve set higher than needed<\/p>\n<\/li>\n<li data-start=\"2378\" data-end=\"2411\">\n<p data-start=\"2380\" data-end=\"2411\">frequent cycling at part load<\/p>\n<\/li>\n<li data-start=\"2412\" data-end=\"2456\">\n<p data-start=\"2414\" data-end=\"2456\">backup heater running more than expected<\/p>\n<\/li>\n<li data-start=\"2457\" data-end=\"2502\">\n<p data-start=\"2459\" data-end=\"2502\">pumps running constantly or at high speed<\/p>\n<\/li>\n<li data-start=\"2503\" data-end=\"2558\">\n<p data-start=\"2505\" data-end=\"2558\">frequent defrost in humid, near-freezing conditions<\/p>\n<\/li>\n<li data-start=\"2559\" data-end=\"2643\">\n<p data-start=\"2561\" data-end=\"2643\">hot water setpoints and schedules that trigger frequent high-temperature operation<\/p>\n<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":34,"featured_media":2902,"parent":66448,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-67306","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages\/67306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/users\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/comments?post=67306"}],"version-history":[{"count":0,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages\/67306\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages\/66448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/media\/2902"}],"wp:attachment":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/media?parent=67306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}