{"id":1292,"date":"2025-12-04T02:35:36","date_gmt":"2025-12-04T02:35:36","guid":{"rendered":"https:\/\/service.soletksolar.com\/?p=1292"},"modified":"2025-12-04T08:29:26","modified_gmt":"2025-12-04T08:29:26","slug":"pvt-heat-pump-the-most-rational-energy-system-you-can-install-today","status":"publish","type":"post","link":"https:\/\/service.soletksolar.com\/fi\/pvt-heat-pump-the-most-rational-energy-system-you-can-install-today\/","title":{"rendered":"cURL Too many subrequests."},"content":{"rendered":"<div class=\"lemonx-visual-block\" data-block-id=\"1\"><!-- Soletks PVT + Heat Pump Banner --><\/p>\n<section class=\"soletks-pvt-banner\">\n<style>\n    .soletks-pvt-banner {\n      width: 100%;\n      background: #0a0e1a;\n      font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;\n      padding: 70px 0;\n      position: relative;\n      overflow: hidden;\n    }<\/p>\n<p>    \/* \u80cc\u666f\u5c42 *\/\n    .soletks-pvt-banner::before {\n      content: '';\n      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.soletks-pvt-banner .cta-button {\n        width: 100%;\n        justify-content: center;\n      }\n      .soletks-pvt-banner .bottom-decoration {\n        flex-direction: column;\n        gap: 20px;\n      }\n    }\n  <\/style>\n<div class=\"deco-blob blob-1\"><\/div>\n<div class=\"deco-blob blob-2\"><\/div>\n<div class=\"wrapper\">\n    <!-- \u6807\u7b7e --><\/p>\n<div class=\"edition-badge\">\n      <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n        <circle cx=\"12\" cy=\"12\" r=\"10\"><\/circle>\n        <path d=\"M12 6v6l4 2\"><\/path>\n      <\/svg><br \/>\n      Practical Framework\n    <\/div>\n<p>    <!-- \u4e3b\u6807\u9898 --><\/p>\n<h1 class=\"hero-title\">\n      <span class=\"highlight\">PVT + Heat Pump<\/span>: The Most Rational Energy System You Can Install Today<br \/>\n    <\/h1>\n<p>    <!-- \u88c5\u9970\u7ebf --><\/p>\n<div class=\"divider-line\"><\/div>\n<p>    <!-- \u526f\u6807\u9898 --><\/p>\n<p class=\"hero-subtitle\">\n      A practical framework for hotels, hospitals, commercial buildings, and high-density residential facilities\n    <\/p>\n<p>    <!-- CTA\u6309\u94ae --><\/p>\n<div class=\"cta-group\">\n      <a href=\"https:\/\/service.soletksolar.com\/contact\/\" class=\"cta-button btn-primary\" target=\"_blank\"><br \/>\n        <span>Get System Design<\/span><br \/>\n        <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n          <path d=\"M5 12h14M12 5l7 7-7 7\"><\/path>\n        <\/svg><br \/>\n      <\/a><br \/>\n      <a href=\"https:\/\/wa.me\/8615318896990\" class=\"cta-button btn-secondary editing\" target=\"_blank\"><br \/>\n        <span>WhatsApp Consult<\/span><br \/>\n      <\/a>\n    <\/div>\n<p>    <!-- \u5e95\u90e8\u88c5\u9970 --><\/p>\n<div class=\"bottom-decoration\">\n<div class=\"deco-item\">\n<div class=\"deco-svg\">\n          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<span class=\"deco-text\">Commercial<\/span>\n      <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p><script>\ndocument.addEventListener('DOMContentLoaded', function() {\n  const buttons = document.querySelectorAll('.soletks-pvt-banner .cta-button');\n  buttons.forEach(btn => {\n    btn.addEventListener('click', function() {\n      this.style.transform = 'scale(0.95)';\n      setTimeout(() => {\n        this.style.transform = '';\n      }, 180);\n    });\n  });<\/p>\n<p>  const decoItems = document.querySelectorAll('.soletks-pvt-banner .deco-item');\n  decoItems.forEach(item => {\n    item.addEventListener('mouseenter', function() {\n      const svg = this.querySelector('.deco-svg');\n      svg.style.transform = 'scale(1.15) rotate(8deg)';\n      svg.style.background = 'linear-gradient(135deg, rgba(14, 165, 233, 0.25), rgba(6, 182, 212, 0.18))';\n    });\n    item.addEventListener('mouseleave', function() {\n      const svg = this.querySelector('.deco-svg');\n      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}<\/p>\n<p>    .soletks-article-section .cta-list li {\n      padding-left: 32px;\n      margin-bottom: 12px;\n      position: relative;\n      font-size: 15px;\n      line-height: 1.7;\n      color: rgba(255, 255, 255, 0.95);\n    }<\/p>\n<p>    .soletks-article-section .cta-list li::before {\n      content: '\u2713';\n      position: absolute;\n      left: 0;\n      color: white;\n      font-weight: 900;\n      font-size: 18px;\n    }<\/p>\n<p>    \/* \u54cd\u5e94\u5f0f *\/\n    @media (max-width: 1024px) {\n      .soletks-article-section .content-grid {\n        grid-template-columns: 1fr;\n      }\n      .soletks-article-section .sidebar {\n        position: static;\n        margin-bottom: 40px;\n      }\n      .soletks-article-section .info-cards {\n        grid-template-columns: 1fr;\n      }\n    }<\/p>\n<p>    @media (max-width: 768px) {\n      .soletks-article-section {\n        padding: 50px 0;\n      }\n      .soletks-article-section .container {\n        padding: 0 20px;\n      }\n      .soletks-article-section .article-title {\n        font-size: 32px;\n      }\n      .soletks-article-section .section-heading {\n        font-size: 24px;\n      }\n      .soletks-article-section .flow-steps {\n        flex-direction: column;\n      }\n      .soletks-article-section .flow-arrow {\n        transform: rotate(90deg);\n      }\n    }\n  <\/style>\n<div class=\"container\">\n    <!-- \u6587\u7ae0\u5934\u90e8 --><\/p>\n<div class=\"article-header\">\n<h1 class=\"article-title\">\n        A Practical Framework for <span class=\"highlight\">PVT + Heat Pump<\/span> Systems<br \/>\n      <\/h1>\n<p class=\"article-subtitle\">\n        Hotels, Hospitals, Commercial Buildings, and High-Density Residential Facilities\n      <\/p>\n<\/p><\/div>\n<div class=\"content-grid\">\n      <!-- \u4fa7\u8fb9\u680f --><\/p>\n<aside class=\"sidebar\">\n<div class=\"sidebar-title\">Contents<\/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=\"#amplifier\" class=\"toc-link\">Heat Pump as Amplifier<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#burden\" class=\"toc-link\">Burden Alone<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#shield\" class=\"toc-link\">PVT as Shield<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#architecture\" class=\"toc-link\">System Architecture<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#stability\" class=\"toc-link\">Operational Stability<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#case\" class=\"toc-link\">Real Case Study<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#preference\" class=\"toc-link\">Why EPCs Prefer This<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#thinking\" class=\"toc-link\">Simple Framework<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#recommendations\" class=\"toc-link\">Integration Guide<\/a><\/li>\n<li class=\"toc-item\"><a href=\"#action\" class=\"toc-link\">Next Steps<\/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            In commercial buildings, heat demand is far more unforgiving than electricity demand.\n          <\/p>\n<p class=\"paragraph\">\n            You can dim lights. You can reduce HVAC setpoints.\n          <\/p>\n<div class=\"quote-box\">\n<p>But you cannot tell a hotel with full occupancy, &#8220;Tonight, please use cold water.&#8221;<\/p>\n<\/p><\/div>\n<p class=\"paragraph\">\n            You cannot tell a hospital, &#8220;The sterilization equipment will heat up when the sun comes back.&#8221;\n          <\/p>\n<p class=\"paragraph\">\n            You cannot tell a swimming facility, &#8220;We&#8217;ll warm the pool when the grid price drops.&#8221;\n          <\/p>\n<div class=\"highlight-box\">\n<p>\n              <strong>This is why every building that runs on real occupancy eventually turns to solar heat.<\/strong><br \/>\n              And if the system must be electrically assisted, the pairing almost always becomes: <strong>PVT + Heat Pump<\/strong>.\n            <\/p>\n<\/p><\/div>\n<p class=\"paragraph\">\n            Not because it&#8217;s &#8220;innovative,&#8221; but because it is the only configuration that respects how heat demand behaves in the real world.\n          <\/p>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u4e00\u90e8\u5206 --><\/p>\n<div id=\"amplifier\" class=\"content-block\">\n<h2 class=\"section-heading\">1. A Heat Pump is an Amplifier, Not a Source of Energy<\/h2>\n<p class=\"paragraph\">\n            Heat pumps do not produce energy. They move it.\n          <\/p>\n<p class=\"paragraph\">\n            With 1 kWh of electricity, a heat pump can relocate 2\u20134 kWh of thermal energy.<br \/>\n            That performance number\u2014<strong>COP<\/strong>\u2014depends on just one brutal truth:\n          <\/p>\n<div class=\"highlight-box\">\n<p><strong>The temperature of the source (the inlet)<\/strong><\/p>\n<\/p><\/div>\n<ul class=\"content-list\">\n<li>Heating 10\u00b0C water to 55\u00b0C is labor-intensive<\/li>\n<li>Heating 35\u00b0C water to 55\u00b0C is effortless<\/li>\n<\/ul>\n<p class=\"paragraph\">\n            The difference is not a few percentage points. It is <strong>30\u201350% real electricity cost<\/strong> over an operating year.\n          <\/p>\n<p class=\"paragraph\">\n            This is why heat pumps struggle in many commercial projects:\n          <\/p>\n<ul class=\"content-list\">\n<li>Cold inlet water<\/li>\n<li>High target temperatures<\/li>\n<li>Short, intense consumption windows<\/li>\n<\/ul>\n<p class=\"paragraph\">\n            They are constantly being asked to replace what the sun already provides for free.\n          <\/p>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u4e8c\u90e8\u5206 --><\/p>\n<div id=\"burden\" class=\"content-block\">\n<h2 class=\"section-heading\">2. In Real Buildings, Heat Pumps Often &#8220;Carry the Burden Alone&#8221;<\/h2>\n<p class=\"paragraph\">\n            There is a familiar story in hotels and hospitals:\n          <\/p>\n<div class=\"info-cards\">\n<div class=\"info-card\">\n<h3 class=\"info-card-title\">Morning Peak Scenario<\/h3>\n<p class=\"info-card-text\">\n                Morning peak \u2192 sudden drop in outlet temperature<br \/>\n                Heat pump goes into continuous mode<br \/>\n                Compressor alarms<br \/>\n                Staff loses patience<br \/>\n                Guests lose confidence\n              <\/p>\n<\/p><\/div>\n<div class=\"info-card\">\n<h3 class=\"info-card-title\">Extended Operation<\/h3>\n<p class=\"info-card-text\">\n                Laundry facility runs 8+ hours<br \/>\n                Return line loop drops to 45\u00b0C<br \/>\n                Machines restart continuously<br \/>\n                Service life collapses from 10 years to 4\n              <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"highlight-box\">\n<p>\n              The problem is not the heat pump. The problem is <strong>lack of a front-end thermal source<\/strong>.\n            <\/p>\n<\/p><\/div>\n<div class=\"quote-box\">\n<p>A heat pump performs best when it is a finisher, not a hero.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u4e09\u90e8\u5206 --><\/p>\n<div id=\"shield\" class=\"content-block\">\n<h2 class=\"section-heading\">3. Why PVT is the Heat Pump&#8217;s Missing Shield<\/h2>\n<p class=\"paragraph\">\n            PVT is not &#8220;solar plus some water.&#8221; It is a <strong>continuous thermal supply<\/strong> that gives heat pumps something they never had:\n          <\/p>\n<div class=\"highlight-box\">\n<p><strong>A stable medium-temperature source.<\/strong><\/p>\n<\/p><\/div>\n<p class=\"paragraph\">\n            When PVT panels extract thermal energy from sunlight, they deliver:\n          <\/p>\n<ul class=\"content-list\">\n<li>30\u201345\u00b0C fluid temperature<\/li>\n<li>Continuous solar-driven heat<\/li>\n<li>Stabilized PV operating temperature<\/li>\n<\/ul>\n<p class=\"paragraph\">\n            Instead of heating water from 10\u201318\u00b0C, the heat pump starts from 35\u201345\u00b0C.\n          <\/p>\n<p class=\"paragraph\">\n            This is not a minor detail. It changes the entire energy system:\n          <\/p>\n<ul class=\"content-list\">\n<li>Compressor workload drops<\/li>\n<li>Electricity demand drops<\/li>\n<li>Runtime shortens<\/li>\n<li>Equipment life increases<\/li>\n<li>Noise and vibration decrease<\/li>\n<\/ul>\n<div class=\"quote-box\">\n<p>Heat pumps become what they were meant to be: a precision lift stage, not a brute-force boiler replacement.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u56db\u90e8\u5206 --><\/p>\n<div id=\"architecture\" class=\"content-block\">\n<h2 class=\"section-heading\">4. The Architecture That Never Fails<\/h2>\n<div class=\"flow-diagram\">\n<div class=\"flow-steps\">\n<div class=\"flow-step\">PVT<\/div>\n<div class=\"flow-arrow\">\u2192<\/div>\n<div class=\"flow-step\">Buffer Tank<\/div>\n<div class=\"flow-arrow\">\u2192<\/div>\n<div class=\"flow-step\">Heat Pump<\/div>\n<div class=\"flow-arrow\">\u2192<\/div>\n<div class=\"flow-step\">Boiler (last)<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<p class=\"paragraph\">\n            A mature commercial system always flows in this order:\n          <\/p>\n<ul class=\"content-list\">\n<li><strong>PVT:<\/strong> base thermal production<\/li>\n<li><strong>Buffer tank:<\/strong> daily energy reservoir<\/li>\n<li><strong>Heat pump:<\/strong> lift to usable DHW temperature<\/li>\n<li><strong>Boiler:<\/strong> rare peak compensation only<\/li>\n<\/ul>\n<div class=\"highlight-box\">\n<p><strong>This is where most PV+HP designs fail:<\/strong><\/p>\n<\/p><\/div>\n<ul class=\"content-list\">\n<li>The heat pump is forced to supply 100% of heat<\/li>\n<li>The PV system only reduces electricity bills<\/li>\n<li>The storage tank acts as a passive bucket, not a thermal engine<\/li>\n<\/ul>\n<p class=\"paragraph\">\n            With PVT upstream, the building stops wasting sunlight as roof temperature.\n          <\/p>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u4e94\u90e8\u5206 --><\/p>\n<div id=\"stability\" class=\"content-block\">\n<h2 class=\"section-heading\">5. Why This Combination &#8220;Feels Stable&#8221; in Daily Operation<\/h2>\n<p class=\"paragraph\">\n            Stability is not a number in a datasheet. It is the user experience at 6:45 AM with full occupancy.\n          <\/p>\n<p class=\"paragraph\">\n            Real commercial heat demand behaves like waves:\n          <\/p>\n<ul class=\"content-list\">\n<li>Guests start showering<\/li>\n<li>Kitchens begin preheating<\/li>\n<li>Laundry cycles spin up<\/li>\n<li>Staff consumption adds up<\/li>\n<\/ul>\n<p class=\"paragraph\">\n            Electricity fluctuates. PV output slides with temperature. But heat demand does not ask for permission.\n          <\/p>\n<div class=\"highlight-box\">\n<p>\n              PVT is already filling the system with 35\u201345\u00b0C energy before the peak begins.<br \/>\n              The heat pump does not start from zero\u2014it only finishes the last 10\u201315\u00b0C.\n            <\/p>\n<\/p><\/div>\n<div class=\"quote-box\">\n<p>This is why experienced engineers say: &#8220;PVT is the heat pump&#8217;s best teammate.&#8221;<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u516d\u90e8\u5206 --><\/p>\n<div id=\"case\" class=\"content-block\">\n<h2 class=\"section-heading\">6. A Real Case Soletks Solar Encountered<\/h2>\n<p class=\"paragraph\">\n            In a hospitality project, the operator relied on heat pumps alone.<br \/>\n            On paper, the design was clean: Heat pump \u2192 storage \u2192 return loop.\n          <\/p>\n<p class=\"paragraph\">\n            During high occupancy, something familiar happened:\n          <\/p>\n<ul class=\"content-list\">\n<li>Heat pumps ran 14\u201318 hours per day<\/li>\n<li>Return temperatures fell toward 40\u201345\u00b0C<\/li>\n<li>Guests reported inconsistent shower experience<\/li>\n<\/ul>\n<p class=\"paragraph\">\n            The system was not failing\u2014it was simply working far beyond its intended duty cycle.\n          <\/p>\n<p class=\"paragraph\">\n            After integrating a PVT field and buffer tank:\n          <\/p>\n<ul class=\"content-list\">\n<li>Heat pump runtime dropped by ~30%<\/li>\n<li>Return loop stabilized<\/li>\n<li>Compressor alarms disappeared<\/li>\n<li>Energy cost decreased<\/li>\n<\/ul>\n<div class=\"quote-box\">\n<p>No miracles. Just putting each technology where it belongs.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u4e03\u90e8\u5206 --><\/p>\n<div id=\"preference\" class=\"content-block\">\n<h2 class=\"section-heading\">7. Why EPCs and Building Operators Prefer PVT + Heat Pump<\/h2>\n<p class=\"paragraph\">\n            Because they do not optimize efficiency, they optimize certainty.\n          <\/p>\n<p class=\"paragraph\">\n            Facilities are not judged by lab results. They are judged by:\n          <\/p>\n<ul class=\"content-list\">\n<li>Customer experience<\/li>\n<li>Outage avoidance<\/li>\n<li>Predictable operating cost<\/li>\n<li>Serviceability<\/li>\n<li>Technical resilience<\/li>\n<\/ul>\n<div class=\"highlight-box\">\n<p>\n              A mixed energy system is not trying to be futuristic. It is trying to stay operational when demand surges.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u516b\u90e8\u5206 --><\/p>\n<div id=\"thinking\" class=\"content-block\">\n<h2 class=\"section-heading\">8. How to Think About This Without Formulas<\/h2>\n<p class=\"paragraph\">\n            You don&#8217;t need engineering jargon. Just remember this hierarchy:\n          <\/p>\n<div class=\"quote-box\">\n<p>\n              <strong>If your building consumes heat every day, then heat must come from the sun, not from electricity.<\/strong>\n            <\/p>\n<\/p><\/div>\n<p class=\"paragraph\">\n            Everything else is a support layer.\n          <\/p>\n<\/p><\/div>\n<p>        <!-- \u7b2c\u4e5d\u90e8\u5206 --><\/p>\n<div id=\"recommendations\" class=\"content-block\">\n<h2 class=\"section-heading\">Practical Integration Recommendations<\/h2>\n<p class=\"paragraph\">\n            <strong>If you have hot water, laundry, pool, or sterilization use<\/strong><br \/>\n            \u2192 PVT should be the primary heat source\n          <\/p>\n<p class=\"paragraph\">\n            <strong>If you already have heat pumps<\/strong><br \/>\n            \u2192 PVT reduces their electrical burden and runtime\n          <\/p>\n<p class=\"paragraph\">\n            <strong>If you only have PV<\/strong><br \/>\n            \u2192 You still have not solved the heat demand\n          <\/p>\n<p class=\"paragraph\">\n            <strong>If you rely solely on heat pumps<\/strong><br \/>\n            \u2192 You are replacing solar energy with grid electricity\n          <\/p>\n<div class=\"highlight-box\">\n<p>\n              <strong>The best commercial configuration:<\/strong><br \/>\n              PVT + Heat Pump + Stratified Storage + Intelligent Circulation\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- \u603b\u7ed3 --><\/p>\n<div class=\"content-block\">\n<h2 class=\"section-heading\">Conclusion<\/h2>\n<p class=\"paragraph\">\n            Energy systems are not academic exercises. They are endurance machines that carry the building every single day.\n          <\/p>\n<p class=\"paragraph\">\n            PVT + Heat Pump is not an exotic approach. It is a simple one:\n          <\/p>\n<ul class=\"content-list\">\n<li>Let the sun provide low-to-medium temperature heat<\/li>\n<li>Let the heat pump finish the final lift<\/li>\n<li>Let storage keep the system calm<\/li>\n<li>Let boilers rest until they are truly needed<\/li>\n<\/ul>\n<div class=\"quote-box\">\n<p>That is what maturity looks like in real-world energy engineering.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <!-- CTA --><\/p>\n<div id=\"action\" class=\"content-block\">\n<div class=\"cta-card\">\n<h3 class=\"cta-title\">Tell Us About Your Building<\/h3>\n<p class=\"cta-text\">\n              Send us the following information:\n            <\/p>\n<ul class=\"cta-list\">\n<li>Building type<\/li>\n<li>Daily hot water consumption (or number of rooms\/beds)<\/li>\n<li>Current heating method (HP \/ boiler \/ resistance)<\/li>\n<li>Climate or city<\/li>\n<li>Your main concern (cost, stability, peak demand)<\/li>\n<\/ul>\n<p class=\"cta-text\">\n              <strong>We will provide:<\/strong>\n            <\/p>\n<ul class=\"cta-list\">\n<li>Recommended PVT area<\/li>\n<li>Expected reduction in heat pump workload<\/li>\n<li>Target temperatures and return stability<\/li>\n<li>Storage strategy<\/li>\n<li>Realistic ROI range<\/li>\n<li>An integration map suitable for your site<\/li>\n<\/ul>\n<p class=\"cta-text\" style=\"margin-top: 30px; font-size: 14px;\">\n              <strong>Soletks Solar<\/strong> \u2014 Mixed energy systems designed for real buildings, not theoretical models.\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('.soletks-article-section .content-block[id]');\n  const tocLinks = document.querySelectorAll('.soletks-article-section .toc-link');<\/p>\n<p>  function activateNavByScroll() {\n    let current = '';\n    sections.forEach(section => {\n      const sectionTop = section.offsetTop;\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);<\/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  });\n});\n<\/script><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Practical Framework PVT + Heat Pump: The Most Rational Energy System You Can Install Today A practical framework for hotels, hospitals, commercial buildings, and high-density residential facilities Get System Design WhatsApp Consult Hotels Hospitals Commercial A Practical Framework for PVT + Heat Pump Systems Hotels, Hospitals, Commercial Buildings, and High-Density Residential Facilities Contents Introduction Heat [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1294,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1292","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/posts\/1292","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/comments?post=1292"}],"version-history":[{"count":1,"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/posts\/1292\/revisions"}],"predecessor-version":[{"id":1293,"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/posts\/1292\/revisions\/1293"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/media\/1294"}],"wp:attachment":[{"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/media?parent=1292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/categories?post=1292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/service.soletksolar.com\/fi\/wp-json\/wp\/v2\/tags?post=1292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}