{"id":1280,"date":"2025-12-04T01:26:13","date_gmt":"2025-12-04T01:26:13","guid":{"rendered":"https:\/\/service.soletksolar.com\/?p=1280"},"modified":"2025-12-04T07:59:33","modified_gmt":"2025-12-04T07:59:33","slug":"how-to-size-a-commercial-solar-hot-water-system-for-hotels-and-hospitals","status":"publish","type":"post","link":"https:\/\/service.soletksolar.com\/ja\/how-to-size-a-commercial-solar-hot-water-system-for-hotels-and-hospitals\/","title":{"rendered":"\u30db\u30c6\u30eb\u3084\u75c5\u9662\u5411\u3051\u5546\u696d\u7528\u592a\u967d\u71b1\u6e29\u6c34\u30b7\u30b9\u30c6\u30e0\u306e\u9069\u6b63\u30b5\u30a4\u30ba\u306e\u6c7a\u3081\u65b9"},"content":{"rendered":"<div class=\"lemonx-visual-block\" data-block-id=\"1\"><!-- Commercial Solar Hot Water System Engineering Banner --><\/p>\n<section class=\"solar-engineering-banner\">\n<style>\n    .solar-engineering-banner {\n      width: 100%;\n      background: #0a0e1a;\n      font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, 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class=\"container\">\n    <!-- \u6587\u7ae0\u5934\u90e8 --><\/p>\n<div class=\"article-header\">\n<h1 class=\"article-title\">\n        How to Size a <span class=\"highlight\">Commercial Solar Hot Water System<\/span> for Hotels and Hospitals<br \/>\n      <\/h1>\n<div class=\"article-meta\">\n<div class=\"meta-item\">\n          <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <circle cx=\"12\" cy=\"12\" r=\"10\"><\/circle>\n            <polyline points=\"12 6 12 12 16 14\"><\/polyline>\n          <\/svg><br \/>\n          <span>18 min read<\/span>\n        <\/div>\n<div class=\"meta-item\">\n          <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <path d=\"M14.7 6.3a1 1 0 0 0 0 1.4l1.6 1.6a1 1 0 0 0 1.4 0l3.77-3.77a6 6 0 0 1-7.94 7.94l-6.91 6.91a2.12 2.12 0 0 1-3-3l6.91-6.91a6 6 0 0 1 7.94-7.94l-3.76 3.76z\"><\/path>\n          <\/svg><br \/>\n          <span>Engineering Guide<\/span>\n        <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"content-grid\">\n      <!-- \u4fa7\u8fb9\u680f\u76ee\u5f55 --><\/p>\n<aside class=\"sidebar\">\n<div class=\"sidebar-title\">\n          <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n            <line x1=\"8\" y1=\"6\" x2=\"21\" y2=\"6\"><\/line>\n            <line x1=\"8\" y1=\"12\" x2=\"21\" y2=\"12\"><\/line>\n            <line x1=\"8\" y1=\"18\" x2=\"21\" y2=\"18\"><\/line>\n            <line x1=\"3\" y1=\"6\" x2=\"3.01\" y2=\"6\"><\/line>\n            <line x1=\"3\" y1=\"12\" x2=\"3.01\" y2=\"12\"><\/line>\n            <line x1=\"3\" y1=\"18\" x2=\"3.01\" y2=\"18\"><\/line>\n          <\/svg><br \/>\n          Contents\n        <\/div>\n<ul class=\"toc-list\">\n<li class=\"toc-item\"><a href=\"#intro\" class=\"toc-link\">Introduction<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#demand\" class=\"toc-link\">1. Determine Actual Demand<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#delta-t\" class=\"toc-link\">2. Define \u0394T<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#thermal-load\" class=\"toc-link\">3. Calculate Thermal Load<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#collector-area\" class=\"toc-link\">4. Convert to Collector Area<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#storage\" class=\"toc-link\">5. Storage Tank Sizing<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#climate\" class=\"toc-link\">6. Climate &amp; Orientation<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#integration\" class=\"toc-link\">7. System Integration<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#case-hotel\" class=\"toc-link\">8. Case: 80-Room Hotel<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#case-hospital\" class=\"toc-link\">9. Case: Hospital Wing<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#mistakes\" class=\"toc-link\">10. Common Mistakes<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#action\" class=\"toc-link\">Get Professional Design<\/a><\/li>\n<\/ul>\n<\/aside>\n<p>      <!-- \u4e3b\u5185\u5bb9 --><br \/>\n      <main class=\"main-content\"><br \/>\n        <!-- \u5f15\u8a00 --><\/p>\n<div id=\"intro\" class=\"content-block\">\n<p class=\"paragraph\">\n            Sizing a solar hot water system is not guesswork. It is not &#8220;X panels per building&#8221; or &#8220;Y liters per room.&#8221; Correct sizing is a <strong>thermodynamic and hydraulic calculation<\/strong> based on real demand, temperature lift, available irradiation, and system integration strategy.\n          <\/p>\n<p class=\"paragraph\">\n            A commercial hot water system that is properly sized will work the moment it is installed and will remain stable for years. A poorly sized system will produce complaints, stagnation, pump failures, and ultimately financial loss.\n          <\/p>\n<div class=\"highlight-box\">\n<p>\n              <strong>This guide explains how to size solar thermal systems for real commercial facilities<\/strong>\u2014hotels, hospitals, schools, campuses, industrial laundries, and student housing. The goal is not maximum temperature; it is consistent delivery, minimal maintenance, and predictable ROI.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c1\u7ae0:\u786e\u5b9a\u5b9e\u9645\u9700\u6c42 --><\/p>\n<div id=\"demand\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <path d=\"M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z\"><\/path>\n              <polyline points=\"9 22 9 12 15 12 15 22\"><\/polyline>\n            <\/svg><br \/>\n            1. Determine the Actual Hot Water Demand<br \/>\n          <\/h2>\n<p class=\"paragraph\">\n            The majority of project mistakes come from using the wrong baseline. <strong>&#8220;100 rooms = 1000 liters per day&#8221;<\/strong> is meaningless. Hotels and hospitals do not consume water uniformly.\n          <\/p>\n<p class=\"paragraph\">\n            We size based on <strong>daily DHW volume per user<\/strong>, multiplied by occupancy and operating profiles.\n          <\/p>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">1.1 Demand Estimation Methods<\/h3>\n<p class=\"paragraph\"><strong>Method A \u2014 Per Capita Consumption<\/strong><\/p>\n<p class=\"paragraph\">Appropriate for:<\/p>\n<ul class=\"content-list\">\n<li>Hotels<\/li>\n<li>Dormitories<\/li>\n<li>Worker camps<\/li>\n<li>Residential complexes<\/li>\n<\/ul>\n<table class=\"data-table\">\n<thead>\n<tr>\n<th>Hotel Type<\/th>\n<th>Daily Consumption<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Budget hotel<\/td>\n<td>30\u201345 L\/guest\/day<\/td>\n<\/tr>\n<tr>\n<td>Mid-range<\/td>\n<td>40\u201360 L\/guest\/day<\/td>\n<\/tr>\n<tr>\n<td>High-end \/ SPA<\/td>\n<td>60\u2013100 L\/guest\/day<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"paragraph\"><strong>Method B \u2014 Functional Load<\/strong><\/p>\n<p class=\"paragraph\">Appropriate for:<\/p>\n<ul class=\"content-list\">\n<li>Hospitals<\/li>\n<li>Laundries<\/li>\n<li>Kitchens<\/li>\n<li>Clinics<\/li>\n<\/ul>\n<table class=\"data-table\">\n<thead>\n<tr>\n<th>Facility Type<\/th>\n<th>Daily Consumption<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hospital bed<\/td>\n<td>60\u2013120 L\/day<\/td>\n<\/tr>\n<tr>\n<td>Commercial laundry<\/td>\n<td>5\u201312 L per kg dry laundry<\/td>\n<\/tr>\n<tr>\n<td>Restaurant kitchen<\/td>\n<td>10\u201320 L per meal\/day<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"highlight-box\">\n<p>\n              <strong>If a facility has mixed loads<\/strong> (e.g., hotel + SPA + laundry), treat each as a separate stream and sum the thermal demand.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c2\u7ae0:\u5b9a\u4e49\u0394T --><\/p>\n<div id=\"delta-t\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <path d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"><\/path>\n              <polyline points=\"14 2 14 8 20 8\"><\/polyline>\n              <line x1=\"16\" y1=\"13\" x2=\"8\" y2=\"13\"><\/line>\n              <line x1=\"16\" y1=\"17\" x2=\"8\" y2=\"17\"><\/line>\n              <polyline points=\"10 9 9 9 8 9\"><\/polyline>\n            <\/svg><br \/>\n            2. Define \u0394T \u2014 The Real Work Your System Must Do<br \/>\n          <\/h2>\n<p class=\"paragraph\">\n            Solar thermal systems do not heat water infinitely. They <strong>lift incoming temperature to a target<\/strong>.\n          <\/p>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">2.1 Determine Inlet Temperature<\/h3>\n<table class=\"data-table\">\n<thead>\n<tr>\n<th>Region<\/th>\n<th>Typical Inlet Temp<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Northern Europe<\/td>\n<td>8\u201312\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Mediterranean<\/td>\n<td>12\u201318\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>MENA \/ Southeast Asia<\/td>\n<td>18\u201325\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Latin America<\/td>\n<td>14\u201322\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"paragraph\">The colder the inlet, the more energy you must deliver.<\/p>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">2.2 Define Setpoint<\/h3>\n<p class=\"paragraph\">Commercial buildings typically run:<\/p>\n<ul class=\"content-list\">\n<li><strong>45\u201355\u00b0C<\/strong> for guest comfort<\/li>\n<li><strong>55\u201360\u00b0C<\/strong> for laundry and kitchens<\/li>\n<li><strong>60\u201370\u00b0C<\/strong> for hospitals or disinfection<\/li>\n<\/ul>\n<div class=\"formula-box\">\n<p>\u0394T = T<sub>setpoint<\/sub> \u2212 T<sub>inlet<\/sub><\/p>\n<\/p><\/div>\n<div class=\"highlight-box\">\n<p>\n              <strong>Example:<\/strong> Hotel in Greece, inlet 15\u00b0C \u2192 setpoint 50\u00b0C \u2192 <strong>\u0394T = 35\u00b0C<\/strong>\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c3\u7ae0:\u8ba1\u7b97\u70ed\u8d1f\u8377 --><\/p>\n<div id=\"thermal-load\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <rect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\" ry=\"2\"><\/rect>\n              <line x1=\"3\" y1=\"9\" x2=\"21\" y2=\"9\"><\/line>\n              <line x1=\"9\" y1=\"21\" x2=\"9\" y2=\"9\"><\/line>\n            <\/svg><br \/>\n            3. Calculate Daily Thermal Load<br \/>\n          <\/h2>\n<p class=\"paragraph\">\n            This is the <strong>most important formula<\/strong> in commercial solar thermal.\n          <\/p>\n<div class=\"formula-box\">\n<p>Q (kWh\/day) = 1.163 \u00d7 V (m\u00b3) \u00d7 \u0394T<\/p>\n<\/p><\/div>\n<p class=\"paragraph\">Where:<\/p>\n<ul class=\"content-list\">\n<li><strong>1.163<\/strong> = specific heat constant of water<\/li>\n<li><strong>V<\/strong> = daily hot water volume in m\u00b3<\/li>\n<li><strong>\u0394T<\/strong> = temperature rise in \u00b0C<\/li>\n<\/ul>\n<div class=\"case-study\">\n<h3 class=\"case-title\">\n              <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n                <path d=\"M9 11l3 3L22 4\"><\/path>\n                <path d=\"M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11\"><\/path>\n              <\/svg><br \/>\n              Example \u2014 70-Room Hotel<br \/>\n            <\/h3>\n<p class=\"paragraph\">Assume:<\/p>\n<ul class=\"content-list\">\n<li>50 L\/guest\/day<\/li>\n<li>70 rooms \u2192 70 guests<\/li>\n<li>Inlet 12\u00b0C \u2192 Setpoint 50\u00b0C \u2192 \u0394T = 38\u00b0C<\/li>\n<\/ul>\n<p class=\"paragraph\">Convert L to m\u00b3:<\/p>\n<p class=\"paragraph\">3500 L\/day \u2192 <strong>3.5 m\u00b3\/day<\/strong><\/p>\n<div class=\"formula-box\">\n<p>Q = 1.163 \u00d7 3.5 \u00d7 38 \u2248 <strong>154.7 kWh\/day<\/strong><\/p>\n<\/p><\/div>\n<div class=\"highlight-box\">\n<p>\n                This is base shower demand only. <strong>Add laundry, kitchen, pool \u2192 typically +40\u2013100%<\/strong>\n              <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p class=\"paragraph\">\n            If you only know the number of rooms or beds, we can derive the thermal demand range and design scenario.\n          <\/p>\n<p class=\"paragraph\" style=\"color: #f97316; font-weight: 700;\">\n            \ud83d\udce7 Send us your numbers\u2014we will calculate for free.\n          <\/p>\n<\/p><\/div>\n<p>        <!-- \u7b2c4\u7ae0:\u8f6c\u6362\u4e3a\u96c6\u70ed\u5668\u9762\u79ef --><\/p>\n<div id=\"collector-area\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <rect x=\"2\" y=\"7\" width=\"20\" height=\"14\" rx=\"2\" ry=\"2\"><\/rect>\n              <path d=\"M16 21V5a2 2 0 0 0-2-2h-4a2 2 0 0 0-2 2v16\"><\/path>\n            <\/svg><br \/>\n            4. Convert Demand into Collector Area<br \/>\n          <\/h2>\n<p class=\"paragraph\">\n            Once you know Q, sizing becomes straightforward. However, solar collectors do not deliver 100% of Q. <strong>They cover 50\u201380%<\/strong> depending on location, architecture, tank strategy, and climate.\n          <\/p>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">4.1 Solar Fraction (SF)<\/h3>\n<p class=\"paragraph\">Define your target coverage:<\/p>\n<ul class=\"content-list\">\n<li><strong>50\u201360%<\/strong> = conservative, low risk, easy to manage<\/li>\n<li><strong>60\u201375%<\/strong> = standard commercial operation<\/li>\n<li><strong>75\u201385%<\/strong> = aggressive, more complex hydraulics<\/li>\n<\/ul>\n<div class=\"highlight-box\">\n<p>\n              <strong>Never aim for 100%<\/strong> \u2014 you will fail in cloudy seasons and oversize tanks.\n            <\/p>\n<\/p><\/div>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">4.2 Conversion Rule of Thumb<\/h3>\n<p class=\"paragraph\">In most regions:<\/p>\n<ul class=\"content-list\">\n<li>Flat plate collectors deliver <strong>300\u2013700 kWh\/m\u00b2\u00b7year<\/strong><\/li>\n<li>(depending on latitude, exposure, and control)<\/li>\n<\/ul>\n<p class=\"paragraph\">A practical heuristic:<\/p>\n<ul class=\"content-list\">\n<li><strong>8\u201312 m\u00b2<\/strong> per ton of daily DHW demand<\/li>\n<\/ul>\n<div class=\"highlight-box\">\n<p>\n              So if your hotel consumes 3 tons\/day:<br \/>\n              <strong>24\u201336 m\u00b2 collector area<\/strong><br \/>\n              (Real projects may add margin for kitchen\/laundry)\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c5\u7ae0:\u50a8\u6c34\u7bb1\u5c3a\u5bf8 --><\/p>\n<div id=\"storage\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <path d=\"M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z\"><\/path>\n              <polyline points=\"3.27 6.96 12 12.01 20.73 6.96\"><\/polyline>\n              <line x1=\"12\" y1=\"22.08\" x2=\"12\" y2=\"12\"><\/line>\n            <\/svg><br \/>\n            5. Storage Tank Sizing<br \/>\n          <\/h2>\n<p class=\"paragraph\">\n            Collectors capture energy inconsistently. Users consume energy consistently. <strong>Tanks bridge that gap.<\/strong>\n          <\/p>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">5.1 Storage Heuristics<\/h3>\n<ul class=\"content-list\">\n<li><strong>50\u2013100 L per m\u00b2<\/strong> of collector area<\/li>\n<li>Higher range in hotels, lower in industrial laundries<\/li>\n<\/ul>\n<div class=\"highlight-box\">\n<p>\n              <strong>Example:<\/strong> 40 m\u00b2 collectors \u2192 <strong>2000\u20134000 L tank<\/strong>\n            <\/p>\n<\/p><\/div>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">5.2 Split-Tank Architecture<\/h3>\n<p class=\"paragraph\">\n            This is where <strong>professional systems surpass amateur ones<\/strong>:\n          <\/p>\n<ul class=\"content-list\">\n<li><strong>Buffer tank<\/strong> absorbs solar heat at fluctuating temperature<\/li>\n<li><strong>Use tank<\/strong> stabilizes final DHW delivery<\/li>\n<\/ul>\n<p class=\"paragraph\">\n            You remove thermal oscillations and protect end-user comfort.\n          <\/p>\n<\/p><\/div>\n<p>        <!-- \u7b2c6\u7ae0:\u6c14\u5019\u548c\u671d\u5411 --><\/p>\n<div id=\"climate\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <circle cx=\"12\" cy=\"12\" r=\"5\"><\/circle>\n              <line x1=\"12\" y1=\"1\" x2=\"12\" y2=\"3\"><\/line>\n              <line x1=\"12\" y1=\"21\" x2=\"12\" y2=\"23\"><\/line>\n              <line x1=\"4.22\" y1=\"4.22\" x2=\"5.64\" y2=\"5.64\"><\/line>\n              <line x1=\"18.36\" y1=\"18.36\" x2=\"19.78\" y2=\"19.78\"><\/line>\n              <line x1=\"1\" y1=\"12\" x2=\"3\" y2=\"12\"><\/line>\n              <line x1=\"21\" y1=\"12\" x2=\"23\" y2=\"12\"><\/line>\n              <line x1=\"4.22\" y1=\"19.78\" x2=\"5.64\" y2=\"18.36\"><\/line>\n              <line x1=\"18.36\" y1=\"5.64\" x2=\"19.78\" y2=\"4.22\"><\/line>\n            <\/svg><br \/>\n            6. Climate and Roof Orientation<br \/>\n          <\/h2>\n<p class=\"paragraph\">\n            A system is not &#8220;X panels.&#8221; It is <strong>irradiation \u00d7 geometry \u00d7 heat loss<\/strong>.\n          <\/p>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">6.1 Irradiation Reference<\/h3>\n<table class=\"data-table\">\n<thead>\n<tr>\n<th>Region<\/th>\n<th>Annual Irradiation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Northern EU<\/td>\n<td>950\u20131,150 kWh\/m\u00b2\u00b7year<\/td>\n<\/tr>\n<tr>\n<td>Mediterranean<\/td>\n<td>1,400\u20131,700 kWh\/m\u00b2\u00b7year<\/td>\n<\/tr>\n<tr>\n<td>LATAM<\/td>\n<td>1,500\u20132,000 kWh\/m\u00b2\u00b7year<\/td>\n<\/tr>\n<tr>\n<td>MENA<\/td>\n<td>1,800\u20132,300 kWh\/m\u00b2\u00b7year<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"highlight-box\">\n<p>\n              <strong>The difference is 2\u00d7 annual yield.<\/strong>\n            <\/p>\n<\/p><\/div>\n<h3 style=\"font-size: 20px; font-weight: 700; color: #0f172a; margin: 24px 0 16px;\">6.2 Tilt and Orientation<\/h3>\n<ul class=\"content-list\">\n<li><strong>Best tilt<\/strong> = local latitude \u00b110\u00b0<\/li>\n<li><strong>South<\/strong> (Northern Hemisphere) \/ <strong>North<\/strong> (Southern Hemisphere)<\/li>\n<li>Avoid shading from elevator shafts, chimneys, parapets<\/li>\n<\/ul>\n<div class=\"highlight-box\">\n<p>\n              <strong>A 5% shading = 10\u201320% real output loss<\/strong> due to temperature cascade.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c7\u7ae0:\u7cfb\u7edf\u96c6\u6210 --><\/p>\n<div id=\"integration\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <polyline points=\"16 18 22 12 16 6\"><\/polyline>\n              <polyline points=\"8 6 2 12 8 18\"><\/polyline>\n            <\/svg><br \/>\n            7. Integrating with Heat Pumps and Boilers<br \/>\n          <\/h2>\n<p class=\"paragraph\">\n            Solar should not deliver the final high-temperature lift. <strong>It should deliver preheat or base load.<\/strong>\n          <\/p>\n<div class=\"formula-box\">\n<p>Correct priority: Solar \u2192 Heat Pump \u2192 Boiler<\/p>\n<\/p><\/div>\n<p class=\"paragraph\"><strong>Why?<\/strong><\/p>\n<ul class=\"content-list\">\n<li>Solar handles low to medium lift (15\u201345\u00b0C or 20\u201350\u00b0C)<\/li>\n<li>Heat pump lifts to 55\u201365\u00b0C efficiently<\/li>\n<li>Boiler tops off extreme peaks<\/li>\n<\/ul>\n<p class=\"paragraph\">This reduces:<\/p>\n<ul class=\"content-list\">\n<li>Compressor workload<\/li>\n<li>Start-stop cycling<\/li>\n<li>Emergency fuel spikes<\/li>\n<\/ul><\/div>\n<p>        <!-- \u7b2c8\u7ae0:\u9152\u5e97\u6848\u4f8b --><\/p>\n<div id=\"case-hotel\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <path d=\"M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z\"><\/path>\n              <polyline points=\"9 22 9 12 15 12 15 22\"><\/polyline>\n            <\/svg><br \/>\n            8. Case Study: 80-Room Hotel (Reliable Realistic Model)<br \/>\n          <\/h2>\n<div class=\"case-study\">\n<h3 class=\"case-title\">\n              <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n                <path d=\"M9 11l3 3L22 4\"><\/path>\n                <path d=\"M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11\"><\/path>\n              <\/svg><br \/>\n              Parameters<br \/>\n            <\/h3>\n<ul class=\"content-list\">\n<li>80 rooms, avg. 90% occupancy seasonally<\/li>\n<li>50 L\/guest\/day = 3600 L\/day<\/li>\n<li>Inlet 15\u00b0C, Setpoint 50\u00b0C \u2192 \u0394T = 35\u00b0C<\/li>\n<\/ul>\n<div class=\"formula-box\">\n<p>Q = 1.163 \u00d7 3.6 \u00d7 35 \u2248 <strong>146.5 kWh\/day<\/strong><\/p>\n<\/p><\/div>\n<p class=\"paragraph\">Assume 70% SF (solar fraction):<\/p>\n<div class=\"formula-box\">\n<p>Q<sub>solar<\/sub> \u2248 <strong>102.6 kWh\/day<\/strong><\/p>\n<\/p><\/div>\n<h4 style=\"font-size: 18px; font-weight: 700; color: #0f172a; margin: 20px 0 12px;\">Collector Area<\/h4>\n<p class=\"paragraph\">Assume climate = 1500 kWh\/m\u00b2\u00b7year \u2192 4.1 kWh\/m\u00b2\u00b7day<\/p>\n<div class=\"formula-box\">\n<p>A = Q<sub>solar<\/sub>\/4.1 \u2248 <strong>25 m\u00b2<\/strong><\/p>\n<\/p><\/div>\n<p class=\"paragraph\">\n              A conservative design would use <strong>28\u201332 m\u00b2<\/strong> to protect winter performance.\n            <\/p>\n<h4 style=\"font-size: 18px; font-weight: 700; color: #0f172a; margin: 20px 0 12px;\">Tank Sizing<\/h4>\n<p class=\"paragraph\">32 m\u00b2 collectors \u2192 Storage = <strong>1600\u20133200 L total<\/strong><\/p>\n<p class=\"paragraph\">Split into:<\/p>\n<ul class=\"content-list\">\n<li>1 \u00d7 2000 L buffer tank<\/li>\n<li>1 \u00d7 1500 L DHW tank<\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c9\u7ae0:\u533b\u9662\u6848\u4f8b --><\/p>\n<div id=\"case-hospital\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <path d=\"M22 12h-4l-3 9L9 3l-3 9H2\"><\/path>\n            <\/svg><br \/>\n            9. Case Study: Hospital Small Wing (Sterilization + Shower)<br \/>\n          <\/h2>\n<div class=\"case-study\">\n<h3 class=\"case-title\">\n                 <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n                <path d=\"M9 11l3 3L22 4\"><\/path>\n                <path d=\"M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11\"><\/path>\n              <\/svg><br \/>\n              Parameters<br \/>\n            <\/h3>\n<ul class=\"content-list\">\n<li>90 beds<\/li>\n<li>80\u2013100 L\/bed\/day<\/li>\n<li>\u0394T = 40\u00b0C<\/li>\n<path d=\"M9 11l3 3L22 4\">\n                <path d=\"M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11\">\n<p>              Parameters<\/p>\n<ul class=\"content-list\">\n<li>90 beds<\/li>\n<li>80\u2013100 L\/bed\/day<\/li>\n<li>\u0394T = 40\u00b0C\n<div class=\"lemonx-visual-block\" data-block-id=\"6\"><\/div>\n<\/li>\n<\/ul>\n<p class=\"paragraph\">Daily volume: <strong>8000\u20139000 L\/day<\/strong><\/p>\n<div class=\"formula-box\">\n<p>Q = 1.163 \u00d7 8.5 \u00d7 40 \u2248 <strong>395 kWh\/day<\/strong><\/p>\n<\/p><\/div>\n<p class=\"paragraph\">Solar fraction target 60% \u2192<\/p>\n<div class=\"formula-box\">\n<p>Q<sub>solar<\/sub> \u2248 <strong>237 kWh\/day<\/strong><\/p>\n<\/p><\/div>\n<p class=\"paragraph\">Assume 4.5 kWh\/m\u00b2\u00b7day \u2248<\/p>\n<div class=\"formula-box\">\n<p>Area = 237 \/ 4.5 \u2248 <strong>53 m\u00b2<\/strong><\/p>\n<\/p><\/div>\n<h4 style=\"font-size: 18px; font-weight: 700; color: #0f172a; margin: 20px 0 12px;\">Tank Sizing<\/h4>\n<p class=\"paragraph\">\n              <strong>3000\u20136000 L<\/strong><br \/>\n              Split recommended due to sterilization priority.\n            <\/p>\n<\/path><\/path><\/ul>\n<\/div><\/div>\n<p>        <!-- \u7b2c10\u7ae0:\u5e38\u89c1\u9519\u8bef --><\/p>\n<div id=\"mistakes\" class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <circle cx=\"12\" cy=\"12\" r=\"10\"><\/circle>\n              <line x1=\"12\" y1=\"8\" x2=\"12\" y2=\"12\"><\/line>\n              <line x1=\"12\" y1=\"16\" x2=\"12.01\" y2=\"16\"><\/line>\n            <\/svg><br \/>\n            10. Practical Mistakes to Avoid<br \/>\n          <\/h2>\n<div style=\"display: grid; grid-template-columns: 1fr; gap: 16px; margin: 30px 0;\">\n<div style=\"background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(220, 38, 38, 0.05)); border-left: 4px solid #ef4444; padding: 20px 24px; border-radius: 0 12px 12px 0;\">\n<h4 style=\"font-size: 17px; font-weight: 700; color: #991b1b; margin: 0 0 8px;\">\u274c Oversizing collectors without storage capacity<\/h4>\n<p style=\"margin: 0; font-size: 15px; color: #334155; line-height: 1.6;\">\u2192 Night cooling and customer complaints.<\/p>\n<\/p><\/div>\n<div style=\"background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(220, 38, 38, 0.05)); border-left: 4px solid #ef4444; padding: 20px 24px; border-radius: 0 12px 12px 0;\">\n<h4 style=\"font-size: 17px; font-weight: 700; color: #991b1b; margin: 0 0 8px;\">\u274c Underestimating DHW load<\/h4>\n<p style=\"margin: 0; font-size: 15px; color: #334155; line-height: 1.6;\">\u2192 Systems look good on paper, fail in operation.<\/p>\n<\/p><\/div>\n<div style=\"background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(220, 38, 38, 0.05)); border-left: 4px solid #ef4444; padding: 20px 24px; border-radius: 0 12px 12px 0;\">\n<h4 style=\"font-size: 17px; font-weight: 700; color: #991b1b; margin: 0 0 8px;\">\u274c Ignoring return circulation<\/h4>\n<p style=\"margin: 0; font-size: 15px; color: #334155; line-height: 1.6;\">\u2192 40 seconds cold water = user dissatisfaction.<\/p>\n<\/p><\/div>\n<div style=\"background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(220, 38, 38, 0.05)); border-left: 4px solid #ef4444; padding: 20px 24px; border-radius: 0 12px 12px 0;\">\n<h4 style=\"font-size: 17px; font-weight: 700; color: #991b1b; margin: 0 0 8px;\">\u274c Wrong energy order<\/h4>\n<p style=\"margin: 0; font-size: 15px; color: #334155; line-height: 1.6;\">\u2192 Boiler runs first \u2192 no ROI.<\/p>\n<\/p><\/div>\n<div style=\"background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(220, 38, 38, 0.05)); border-left: 4px solid #ef4444; padding: 20px 24px; border-radius: 0 12px 12px 0;\">\n<h4 style=\"font-size: 17px; font-weight: 700; color: #991b1b; margin: 0 0 8px;\">\u274c No anti-stagnation strategy<\/h4>\n<p style=\"margin: 0; font-size: 15px; color: #334155; line-height: 1.6;\">\u2192 Glycol destruction, pump failure.<\/p>\n<\/p><\/div>\n<div style=\"background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(220, 38, 38, 0.05)); border-left: 4px solid #ef4444; padding: 20px 24px; border-radius: 0 12px 12px 0;\">\n<h4 style=\"font-size: 17px; font-weight: 700; color: #991b1b; margin: 0 0 8px;\">\u274c No tank temperature stratification<\/h4>\n<p style=\"margin: 0; font-size: 15px; color: #334155; line-height: 1.6;\">\u2192 System becomes a big kettle with zero optimization.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- CTA\u884c\u52a8\u53ec\u5524 --><\/p>\n<div id=\"action\" class=\"content-block\">\n<div class=\"cta-card\">\n<div class=\"cta-card-content\">\n<h3 class=\"cta-title\">We Design Based on Your Real Load<\/h3>\n<p class=\"cta-text\">\n                Do not buy collectors based on photos or catalogs. Solar thermal is not decorative; it is a financial tool.\n              <\/p>\n<div style=\"background: rgba(255, 255, 255, 0.12); padding: 24px; border-radius: 14px; margin: 28px 0; backdrop-filter: blur(10px);\">\n<h4 style=\"font-size: 19px; font-weight: 800; color: white; margin: 0 0 16px;\">Send us 5 numbers:<\/h4>\n<ul style=\"list-style: none; padding: 0; margin: 0; text-align: left; max-width: 600px; margin: 0 auto;\">\n<li style=\"padding: 8px 0; color: rgba(255, 255, 255, 0.95); font-size: 15px; font-weight: 600;\">\u2713 Building type<\/li>\n<li style=\"padding: 8px 0; color: rgba(255, 255, 255, 0.95); font-size: 15px; font-weight: 600;\">\u2713 Room count \/ beds \/ laundry capacity<\/li>\n<li style=\"padding: 8px 0; color: rgba(255, 255, 255, 0.95); font-size: 15px; font-weight: 600;\">\u2713 Daily DHW volume (if known)<\/li>\n<li style=\"padding: 8px 0; color: rgba(255, 255, 255, 0.95); font-size: 15px; font-weight: 600;\">\u2713 Inlet temperature region or city<\/li>\n<li style=\"padding: 8px 0; color: rgba(255, 255, 255, 0.95); font-size: 15px; font-weight: 600;\">\u2713 Energy source (electric \/ gas \/ diesel)<\/li>\n<\/ul><\/div>\n<div style=\"background: rgba(255, 255, 255, 0.10); padding: 20px; border-radius: 12px; margin: 24px 0; backdrop-filter: blur(8px);\">\n<h4 style=\"font-size: 17px; font-weight: 800; color: white; margin: 0 0 14px;\">We will return:<\/h4>\n<div style=\"display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; text-align: left;\">\n<div style=\"color: rgba(255, 255, 255, 0.92); font-size: 14px; font-weight: 600;\">\u2192 Collector area<\/div>\n<div style=\"color: rgba(255, 255, 255, 0.92); font-size: 14px; font-weight: 600;\">\u2192 Storage strategy<\/div>\n<div style=\"color: rgba(255, 255, 255, 0.92); font-size: 14px; font-weight: 600;\">\u2192 Integration plan (HP \/ Boiler)<\/div>\n<div style=\"color: rgba(255, 255, 255, 0.92); font-size: 14px; font-weight: 600;\">\u2192 Annual solar coverage<\/div>\n<div style=\"color: rgba(255, 255, 255, 0.92); font-size: 14px; font-weight: 600; grid-column: 1 \/ -1;\">\u2192 Realistic payback<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"cta-contacts\">\n                <a href=\"mailto:export@soletksolar.com\" class=\"contact-item\" style=\"text-decoration: none;\"><br \/>\n                  <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n                    <path d=\"M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z\"><\/path>\n                    <polyline points=\"22,6 12,13 2,6\"><\/polyline>\n                  <\/svg><br \/>\n                  <span>export@soletksolar.com<\/span><br \/>\n                <\/a><br \/>\n                <a href=\"https:\/\/wa.me\/8615318896990\" class=\"contact-item\" style=\"text-decoration: none;\" target=\"_blank\"><br \/>\n                  <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n                    <path d=\"M21 11.5a8.38 8.38 0 0 1-.9 3.8 8.5 8.5 0 0 1-7.6 4.7 8.38 8.38 0 0 1-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 0 1-.9-3.8 8.5 8.5 0 0 1 4.7-7.6 8.38 8.38 0 0 1 3.8-.9h.5a8.48 8.48 0 0 1 8 8v.5z\"><\/path>\n                  <\/svg><br \/>\n                  <span>+86-15318896990<\/span><br \/>\n                <\/a>\n              <\/div>\n<p style=\"margin-top: 24px; font-size: 15px; color: rgba(255, 255, 255, 0.85); font-weight: 600; line-height: 1.5;\">\n                We design systems that run 365 days,<br \/>not seasonal marketing prototypes.\n              <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u603b\u7ed3 --><\/p>\n<div class=\"content-block\">\n<h2 class=\"section-heading\">\n            <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n              <polyline points=\"20 6 9 17 4 12\"><\/polyline>\n            <\/svg><br \/>\n            Summary<br \/>\n          <\/h2>\n<p class=\"paragraph\">\n            Sizing a commercial solar hot water system correctly requires <strong>engineering discipline<\/strong>, not marketing promises. The process is straightforward:\n          <\/p>\n<ul class=\"content-list\">\n<li>Calculate real DHW demand based on user profiles<\/li>\n<li>Define inlet and setpoint temperatures to determine \u0394T<\/li>\n<li>Use thermal load formula: Q = 1.163 \u00d7 V \u00d7 \u0394T<\/li>\n<li>Convert to collector area based on solar fraction and climate<\/li>\n<li>Size storage tanks to bridge supply-demand gaps<\/li>\n<li>Integrate properly with heat pumps and backup systems<\/li>\n<li>Account for orientation, shading, and seasonal variations<\/li>\n<\/ul>\n<p class=\"paragraph\">\n            A properly sized system will deliver <strong>consistent performance, minimal maintenance, and predictable ROI<\/strong>. An improperly sized system will generate complaints, failures, and financial losses.\n          <\/p>\n<div class=\"highlight-box\">\n<p>\n              <strong>The difference between success and failure is not the product\u2014it&#8217;s the engineering.<\/strong> Work with professionals who calculate, not estimate. Work with manufacturers who design systems, not sell components.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>      <\/main>\n    <\/div>\n<\/p><\/div>\n<\/section>\n<p><script>\ndocument.addEventListener('DOMContentLoaded', function() {\n  \/\/ \u76ee\u5f55\u5bfc\u822a\u6fc0\u6d3b\n  const sections = document.querySelectorAll('.solar-article-section .content-block[id]');\n  const tocLinks = document.querySelectorAll('.solar-article-section .toc-link');<\/p>\n<p>  function activateNavByScroll() {\n    let current = '';\n    sections.forEach(section => {\n      const sectionTop = section.offsetTop;\n      const sectionHeight = section.clientHeight;\n      if (window.pageYOffset >= sectionTop - 150) {\n        current = section.getAttribute('id');\n      }\n    });<\/p>\n<p>    tocLinks.forEach(link => {\n      link.classList.remove('active');\n      if (link.getAttribute('href') === `#${current}`) {\n        link.classList.add('active');\n      }\n    });\n  }<\/p>\n<p>  window.addEventListener('scroll', activateNavByScroll);\n  activateNavByScroll(); \/\/ \u521d\u59cb\u5316<\/p>\n<p>  \/\/ \u5e73\u6ed1\u6eda\u52a8\n  tocLinks.forEach(link => {\n    link.addEventListener('click', function(e) {\n      e.preventDefault();\n      const targetId = this.getAttribute('href');\n      const targetSection = document.querySelector(targetId);\n      if (targetSection) {\n        window.scrollTo({\n          top: targetSection.offsetTop - 100,\n          behavior: 'smooth'\n        });\n      }\n    });\n  });<\/p>\n<p>  \/\/ \u6848\u4f8b\u7814\u7a76\u5361\u7247\u52a8\u753b\n  const caseStudies = document.querySelectorAll('.solar-article-section .case-study');\n  const observerOptions = {\n    threshold: 0.15,\n    rootMargin: '0px 0px -80px 0px'\n  };<\/p>\n<p>  const observer = new IntersectionObserver(function(entries) {\n    entries.forEach(entry => {\n      if (entry.isIntersecting) {\n        entry.target.style.opacity = '0';\n        entry.target.style.transform = 'translateY(30px)';\n        setTimeout(() => {\n          entry.target.style.transition = 'all 0.7s cubic-bezier(0.4, 0, 0.2, 1)';\n          entry.target.style.opacity = '1';\n          entry.target.style.transform = 'translateY(0)';\n        }, 100);\n        observer.unobserve(entry.target);\n      }\n    });\n  }, observerOptions);<\/p>\n<p>  caseStudies.forEach(card => observer.observe(card));<\/p>\n<p>  \/\/ \u8868\u683c\u884c\u60ac\u505c\u6548\u679c\n  const tableRows = document.querySelectorAll('.solar-article-section .data-table tbody tr');\n  tableRows.forEach(row => {\n    row.addEventListener('mouseenter', function() {\n      this.style.transform = 'translateX(4px)';\n      this.style.transition = 'all 0.3s ease';\n    });\n    row.addEventListener('mouseleave', function() {\n      this.style.transform = 'translateX(0)';\n    });\n  });<\/p>\n<p>  \/\/ \u8054\u7cfb\u6309\u94ae\u70b9\u51fb\u8ffd\u8e2a\n  const contactItems = document.querySelectorAll('.solar-article-section .contact-item');\n  contactItems.forEach(item => {\n    item.addEventListener('click', function() {\n      const contactType = this.querySelector('span').textContent;\n      console.log(`Contact initiated: ${contactType}`);<\/p>\n<p>      \/\/ \u70b9\u51fb\u53cd\u9988\u52a8\u753b\n      this.style.transform = 'scale(0.96)';\n      setTimeout(() => {\n        this.style.transform = '';\n      }, 150);\n    });\n  });<\/p>\n<p>  \/\/ \u516c\u5f0f\u6846\u9ad8\u4eae\u6548\u679c\n  const formulaBoxes = document.querySelectorAll('.solar-article-section .formula-box');\n  formulaBoxes.forEach(box => {\n    box.addEventListener('mouseenter', function() {\n      this.style.borderLeftWidth = '6px';\n      this.style.transform = 'translateX(4px)';\n      this.style.boxShadow = '0 6px 20px rgba(59, 130, 246, 0.20)';\n    });\n    box.addEventListener('mouseleave', function() {\n      this.style.borderLeftWidth = '4px';\n      this.style.transform = 'translateX(0)';\n      this.style.boxShadow = '';\n    });\n  });\n});\n<\/script><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Engineering Method How to Size a Commercial Solar Hot Water System\u2014Correctly Engineering, Not Guesswork: Real Load, Real \u0394T, Real ROI Based on thermodynamics, not room counts Get Load-Based Sizing Model For your building \u2022 Professional analysis \u00b13-5% Thermal LoadAccuracy 50-80% SolarFraction Real ROICalculation \u0394T BasedSizing Zero Guesswork How to Size a Commercial Solar Hot Water System for Hotels and Hospitals 18 min read Engineering Guide Contents Introduction 1. Determine Actual Demand 2. Define \u0394T 3. Calculate Thermal Load 4. Convert to Collector Area 5. Storage Tank Sizing 6. Climate &amp; Orientation 7. System Integration 8. Case: 80-Room Hotel 9. Case: Hospital Wing 10. Common Mistakes Get Professional Design Sizing a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1277,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1280","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/posts\/1280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/comments?post=1280"}],"version-history":[{"count":1,"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/posts\/1280\/revisions"}],"predecessor-version":[{"id":1281,"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/posts\/1280\/revisions\/1281"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/media\/1277"}],"wp:attachment":[{"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/media?parent=1280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/categories?post=1280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/service.soletksolar.com\/ja\/wp-json\/wp\/v2\/tags?post=1280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}