Question 1

PVT-E Type

Accepted Answer

A hybrid photovoltaic-thermal module optimized for efficient electricity generation with auxiliary heat recovery.

Question 2

PVT-T Type

Accepted Answer

A thermal-focused hybrid panel emphasizing high heat capture while maintaining strong power generation capacity.

Question 3

TP/V Pro Type

Accepted Answer

The next-generation professional PVT system featuring upgraded thermal management and enhanced cooling technology.

Question 4

Maximum Energy per m² of Roof Area

Accepted Answer

For many projects, roof or façade area is the main limitation. PVT allows you to:

Question 5

Better PV Efficiency Through Active Cooling

Accepted Answer

PV efficiency drops when cells are hot. The thermal side of a PVT module removes heat from the PV cells, which can:

Question 6

Strong Sustainability & ESG Value

Accepted Answer

PVT displaces both grid electricity and fossil-based heat:

Question 7

Residential & Multi-Family Buildings

Ideal Targets

Domestic hot water (DHW)

Partial space heating support

Electricity for common areas

Key Benefits

High solar yield per m²—ideal for limited roof space

Lower energy bills and improved building energy rating

Strong value for social housing, condominiums, and student residences

3.2

Hotels, Resorts & Hospitality

Ideal Targets

DHW for rooms, kitchens, and spa facilities

Pool heating

Electricity for lighting, HVAC, and laundry

Key Benefits

Delivers peak heat output during high occupancy and cooling demand

Excellent synergy with heat pumps for highly efficient, low-carbon energy plants

Enhances brand image as a "solar hotel" with visible rooftop technology

3.3

Hospitals, Clinics & Elderly Care

Ideal Targets

Continuous domestic hot water

Laundry and sterilization processes

Space heating support

Key Benefits

Year-round demand ensures exceptional utilization of thermal and electrical output

Reduces pressure on boilers and electrical networks simultaneously

Improves energy security and lowers operational costs

3.4

Industrial & Agro-Food Processes

Ideal Targets

Process water at 35–70°C

Cleaning, CIP, pre-heating, and drying air

Electricity for motors, pumps, and compressors

Key Benefits

Maximizes both sides of solar energy: thermal for processes and electricity to reduce peak demand

Ideal for dairies, beverage plants, textile factories, laundries, slaughterhouses, and greenhouses

Supports industrial decarbonization and long-term energy cost stability

3.5

Office, Commercial & Public Buildings

Ideal Targets

DHW for canteens, showers, and gyms

Space heating or underfloor heating support

Electricity for building services

Key Benefits

Works seamlessly with BIPV/BIPVT façade concepts

Supports net-zero and energy-positive building strategies

Reduces operational energy consumption while improving ESG and green-building ratings

document.addEventListener('DOMContentLoaded', function() {
  // Intersection Observer for card animations
  const observerOptions = {
    threshold: 0.1,
    rootMargin: '0px 0px -100px 0px'
  };

document.querySelectorAll('.application-card').forEach(card => {
    card.style.opacity = '0';
    card.style.transform = 'translateY(30px)';
    card.style.transition = 'all 0.6s ease';
    observer.observe(card);
  });
});

.pvt-system-working {
      width: 100%;
      background: linear-gradient(180deg, #1a1410 0%, #292524 100%);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }

.pvt-system-working::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: radial-gradient(ellipse at top right, rgba(234, 88, 12, 0.1) 0%, transparent 50%),
                  radial-gradient(ellipse at bottom left, rgba(249, 115, 22, 0.08) 0%, transparent 50%);
      z-index: 0;
    }

.pvt-system-working .system-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 30px;
      position: relative;
      z-index: 1;
    }

/* Section 4 Header */
    .pvt-system-working .section-header {
      text-align: center;
      margin-bottom: 60px;
    }

.pvt-system-working .section-number {
      display: inline-block;
      width: 60px;
      height: 60px;
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      border-radius: 50%;
      font-size: 28px;
      font-weight: 800;
      color: white;
      line-height: 60px;
      margin-bottom: 20px;
      box-shadow: 0 6px 25px rgba(234, 88, 12, 0.4);
    }

.pvt-system-working .section-title {
      font-size: 42px;
      font-weight: 800;
      color: #fafaf9;
      margin-bottom: 18px;
      line-height: 1.2;
    }

.pvt-system-working .section-subtitle {
      font-size: 18px;
      color: #d6d3d1;
      max-width: 800px;
      margin: 0 auto;
      line-height: 1.7;
    }

/* Component Cards Grid */
    .pvt-system-working .components-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-bottom: 60px;
    }

.pvt-system-working .component-card {
      background: rgba(250, 250, 249, 0.05);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(234, 88, 12, 0.2);
      border-radius: 20px;
      padding: 30px;
      transition: all 0.4s ease;
      position: relative;
      overflow: hidden;
    }

.pvt-system-working .component-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, #ea580c 0%, #f97316 100%);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.4s ease;
    }

.pvt-system-working .component-card:hover {
      background: rgba(250, 250, 249, 0.08);
      border-color: rgba(234, 88, 12, 0.4);
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(234, 88, 12, 0.2);
    }

.pvt-system-working .component-card:hover::before {
      transform: scaleX(1);
    }

.pvt-system-working .component-header {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 20px;
    }

.pvt-system-working .component-number {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, rgba(234, 88, 12, 0.2) 0%, rgba(249, 115, 22, 0.3) 100%);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 800;
      color: #fb923c;
      flex-shrink: 0;
    }

.pvt-system-working .component-title {
      font-size: 20px;
      font-weight: 700;
      color: #fafaf9;
      margin: 0;
    }

.pvt-system-working .component-description {
      font-size: 15px;
      line-height: 1.7;
      color: #d6d3d1;
      margin-bottom: 18px;
    }

.pvt-system-working .component-features {
      list-style: none;
      padding: 0;
      margin: 0;
    }

.pvt-system-working .component-features li {
      font-size: 14px;
      color: #a8a29e;
      padding: 8px 0;
      padding-left: 25px;
      position: relative;
      line-height: 1.6;
    }

.pvt-system-working .component-features li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 14px;
      width: 8px;
      height: 8px;
      background: #ea580c;
      border-radius: 50%;
      box-shadow: 0 0 10px rgba(234, 88, 12, 0.5);
    }

/* Heat Pump Section */
    .pvt-system-working .heat-pump-section {
      background: linear-gradient(135deg, rgba(234, 88, 12, 0.1) 0%, rgba(249, 115, 22, 0.05) 100%);
      border: 2px solid rgba(234, 88, 12, 0.3);
      border-radius: 24px;
      padding: 50px;
      margin-top: 60px;
      position: relative;
      overflow: hidden;
    }

.pvt-system-working .heat-pump-section::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(234, 88, 12, 0.1) 0%, transparent 70%);
      animation: rotate 20s linear infinite;
    }

@keyframes rotate {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

.pvt-system-working .heat-pump-header {
      text-align: center;
      margin-bottom: 40px;
      position: relative;
      z-index: 1;
    }

.pvt-system-working .heat-pump-number {
      display: inline-block;
      width: 50px;
      height: 50px;
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      border-radius: 50%;
      font-size: 24px;
      font-weight: 800;
      color: white;
      line-height: 50px;
      margin-bottom: 15px;
      box-shadow: 0 4px 20px rgba(234, 88, 12, 0.4);
    }

.pvt-system-working .heat-pump-title {
      font-size: 36px;
      font-weight: 800;
      color: #fafaf9;
      margin-bottom: 15px;
      line-height: 1.2;
    }

.pvt-system-working .heat-pump-subtitle {
      font-size: 17px;
      color: #d6d3d1;
      max-width: 700px;
      margin: 0 auto;
    }

.pvt-system-working .heat-pump-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      position: relative;
      z-index: 1;
    }

.pvt-system-working .how-it-works {
      background: rgba(26, 20, 16, 0.6);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(234, 88, 12, 0.2);
      border-radius: 16px;
      padding: 30px;
    }

.pvt-system-working .subsection-title {
      font-size: 22px;
      font-weight: 700;
      color: #fb923c;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

.pvt-system-working .subsection-title svg {
      width: 24px;
      height: 24px;
      stroke: #fb923c;
    }

.pvt-system-working .process-steps {
      list-style: none;
      padding: 0;
      margin: 0;
    }

.pvt-system-working .process-step {
      display: flex;
      align-items: flex-start;
      gap: 15px;
      margin-bottom: 20px;
      padding: 15px;
      background: rgba(234, 88, 12, 0.05);
      border-radius: 12px;
      border-left: 3px solid #ea580c;
    }

.pvt-system-working .step-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

.pvt-system-working .step-icon svg {
      width: 18px;
      height: 18px;
      stroke: white;
    }

.pvt-system-working .step-text {
      font-size: 15px;
      color: #e7e5e4;
      line-height: 1.7;
    }

.pvt-system-working .result-box {
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      padding: 20px 25px;
      border-radius: 12px;
      margin-top: 20px;
      box-shadow: 0 6px 20px rgba(234, 88, 12, 0.3);
    }

.pvt-system-working .result-box p {
      font-size: 16px;
      font-weight: 600;
      color: white;
      margin: 0;
      line-height: 1.6;
    }

.pvt-system-working .use-cases {
      background: rgba(26, 20, 16, 0.6);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(234, 88, 12, 0.2);
      border-radius: 16px;
      padding: 30px;
    }

.pvt-system-working .use-case-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

.pvt-system-working .use-case-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 15px;
      margin-bottom: 12px;
      background: rgba(234, 88, 12, 0.05);
      border-radius: 10px;
      border: 1px solid rgba(234, 88, 12, 0.15);
      transition: all 0.3s ease;
    }

.pvt-system-working .use-case-item:hover {
      background: rgba(234, 88, 12, 0.1);
      border-color: rgba(234, 88, 12, 0.3);
      transform: translateX(5px);
    }

.pvt-system-working .use-case-item svg {
      width: 20px;
      height: 20px;
      fill: #22c55e;
      flex-shrink: 0;
    }

.pvt-system-working .use-case-item span {
      font-size: 15px;
      color: #e7e5e4;
      line-height: 1.6;
    }

.pvt-system-working .final-statement {
      background: rgba(26, 20, 16, 0.8);
      backdrop-filter: blur(10px);
      border: 2px solid rgba(234, 88, 12, 0.3);
      border-radius: 16px;
      padding: 30px;
      margin-top: 30px;
      text-align: center;
      position: relative;
      z-index: 1;
    }

.pvt-system-working .final-statement p {
      font-size: 18px;
      font-weight: 600;
      color: #fafaf9;
      margin: 0;
      line-height: 1.7;
    }

.pvt-system-working .final-statement .highlight {
      color: #fb923c;
      font-weight: 700;
    }

/* Responsive */
    @media (max-width: 992px) {
      .pvt-system-working .section-title {
        font-size: 36px;
      }
      .pvt-system-working .heat-pump-title {
        font-size: 30px;
      }
      .pvt-system-working .heat-pump-content {
        grid-template-columns: 1fr;
      }
      .pvt-system-working .components-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      }
    }

@media (max-width: 576px) {
      .pvt-system-working {
        padding: 60px 0;
      }
      .pvt-system-working .section-title {
        font-size: 30px;
      }
      .pvt-system-working .heat-pump-section {
        padding: 30px 25px;
      }
      .pvt-system-working .heat-pump-title {
        font-size: 26px;
      }
    }

4
      How a PVT System Works
      
        A Soletks PVT system is built as a fully integrated hybrid solution that produces both electricity and thermal energy from the same surface.

1
          PVT Hybrid Panels

Advanced dual-function solar modules combining photovoltaic and thermal technologies.

High-efficiency photovoltaic cells on the front side
          Thermal absorber and fluid channels on the rear
          Multiple insulation layers to minimize heat losses and ensure long-term durability

2
          Hydraulic Circuit & Heat Exchanger

Complete thermal management system for optimal heat transfer and distribution.

Pumping station with flow and temperature control
          Heat exchanger for transferring energy to DHW tank, buffer tank, pool, or heating loop
          Complete safety group with valves, sensors, and expansion vessel

3
          Hot Water & Buffer Tanks

Thermal energy storage solutions for continuous hot water availability.

Domestic hot water (DHW) storage tanks
          Buffer tanks for heating or industrial process circuits
          Easy integration with heat pumps, boilers, or hybrid energy systems

4
          Electrical Side

Professional PV system components for maximum electrical efficiency.

PV string configuration with high-quality DC cabling
          String or centralized inverters for maximum conversion efficiency
          Smart monitoring and metering for both electricity and heat production

5
          Control & Monitoring

Intelligent system management for optimized performance and energy savings.

Weather, irradiation, and temperature sensors
          Intelligent prioritization between PV, thermal output, heat pump, and backup sources
          Online monitoring of electrical kWh, thermal kWh, energy savings, and CO₂ reduction

5
        PVT + Heat Pump = High-Performance Hybrid Plant
        
          Combining PVT panels with a heat pump creates one of the most efficient renewable energy systems available today.

How the Hybrid Works

The PVT panel provides low-temperature heat to the heat pump's evaporator or buffer tank

The PV side supplies part of the electricity required by the compressor

Result: A significantly higher overall COP and superior seasonal performance

Typical Use Cases

Low-temperature underfloor heating

DHW + space heating for residential and commercial buildings

Pool heating and dehumidification

Process water pre-heating for industrial applications

PVT + heat pump transforms your roof into a compact, high-efficiency renewable energy plant—producing both heating energy and clean electricity from one integrated system.

document.addEventListener('DOMContentLoaded', function() {
  // Staggered animation for component cards
  const componentCards = document.querySelectorAll('.component-card');
  
  const observerOptions = {
    threshold: 0.1,
    rootMargin: '0px 0px -50px 0px'
  };

componentCards.forEach(card => {
    card.style.opacity = '0';
    card.style.transform = 'translateY(20px)';
    card.style.transition = 'all 0.6s ease';
    observer.observe(card);
  });

// Hover effect for use case items
  const useCaseItems = document.querySelectorAll('.use-case-item');
  useCaseItems.forEach(item => {
    item.addEventListener('mouseenter', function() {
      this.style.transform = 'translateX(8px)';
    });
    item.addEventListener('mouseleave', function() {
      this.style.transform = 'translateX(0)';
    });
  });
});

.pvt-engineering {
      width: 100%;
      background: linear-gradient(180deg, #fafaf9 0%, #f5f5f4 100%);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      padding: 80px 0;
      position: relative;
    }

.pvt-engineering .engineering-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 30px;
    }

/* Hero Section */
    .pvt-engineering .hero-section {
      text-align: center;
      margin-bottom: 70px;
      padding: 60px 40px;
      background: linear-gradient(135deg, rgba(234, 88, 12, 0.08) 0%, rgba(249, 115, 22, 0.05) 100%);
      border-radius: 24px;
      border: 2px solid rgba(234, 88, 12, 0.2);
      position: relative;
      overflow: hidden;
    }

.pvt-engineering .hero-section::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(234, 88, 12, 0.1) 0%, transparent 70%);
      animation: pulse-glow 4s ease-in-out infinite;
    }

@keyframes pulse-glow {
      0%, 100% { opacity: 0.5; transform: scale(1); }
      50% { opacity: 1; transform: scale(1.05); }
    }

.pvt-engineering .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      color: white;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      border-radius: 20px;
      margin-bottom: 20px;
      box-shadow: 0 4px 15px rgba(234, 88, 12, 0.3);
      position: relative;
      z-index: 1;
    }

.pvt-engineering .hero-badge svg {
      width: 16px;
      height: 16px;
      fill: white;
    }

.pvt-engineering .hero-title {
      font-size: 44px;
      font-weight: 800;
      color: #1a1410;
      margin-bottom: 20px;
      line-height: 1.2;
      position: relative;
      z-index: 1;
    }

.pvt-engineering .hero-title .highlight {
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

.pvt-engineering .hero-statement {
      font-size: 20px;
      font-weight: 600;
      color: #57534e;
      max-width: 800px;
      margin: 0 auto 15px;
      line-height: 1.6;
      position: relative;
      z-index: 1;
    }

.pvt-engineering .hero-subtext {
      font-size: 17px;
      color: #78716c;
      max-width: 750px;
      margin: 0 auto;
      line-height: 1.7;
      position: relative;
      z-index: 1;
    }

/* Features Grid */
    .pvt-engineering .features-section {
      margin-bottom: 60px;
    }

.pvt-engineering .section-intro {
      text-align: center;
      margin-bottom: 40px;
    }

.pvt-engineering .section-intro h3 {
      font-size: 28px;
      font-weight: 700;
      color: #1a1410;
      margin-bottom: 12px;
    }

.pvt-engineering .features-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }

.pvt-engineering .feature-card {
      background: white;
      padding: 25px 30px;
      border-radius: 16px;
      border-left: 4px solid #ea580c;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
      transition: all 0.3s ease;
    }

.pvt-engineering .feature-card:hover {
      transform: translateX(5px);
      box-shadow: 0 6px 20px rgba(234, 88, 12, 0.15);
    }

.pvt-engineering .feature-card p {
      font-size: 15px;
      color: #44403c;
      margin: 0;
      line-height: 1.7;
      font-weight: 500;
    }

/* Performance Stats */
    .pvt-engineering .performance-section {
      background: linear-gradient(135deg, #1a1410 0%, #292524 100%);
      padding: 50px;
      border-radius: 24px;
      margin-bottom: 60px;
      position: relative;
      overflow: hidden;
    }

.pvt-engineering .performance-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: radial-gradient(ellipse at top left, rgba(234, 88, 12, 0.15) 0%, transparent 50%);
      z-index: 0;
    }

.pvt-engineering .performance-header {
      text-align: center;
      margin-bottom: 35px;
      position: relative;
      z-index: 1;
    }

.pvt-engineering .performance-header h3 {
      font-size: 30px;
      font-weight: 800;
      color: #fafaf9;
      margin-bottom: 12px;
    }

.pvt-engineering .stats-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-bottom: 30px;
      position: relative;
      z-index: 1;
    }

.pvt-engineering .stat-card {
      background: rgba(250, 250, 249, 0.05);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(234, 88, 12, 0.3);
      border-radius: 16px;
      padding: 25px;
      transition: all 0.3s ease;
    }

.pvt-engineering .stat-card:hover {
      background: rgba(250, 250, 249, 0.08);
      border-color: rgba(234, 88, 12, 0.5);
      transform: translateY(-3px);
    }

.pvt-engineering .stat-card p {
      font-size: 16px;
      color: #e7e5e4;
      margin: 0;
      line-height: 1.7;
      font-weight: 500;
    }

.pvt-engineering .stat-card strong {
      color: #fb923c;
      font-weight: 700;
    }

.pvt-engineering .key-outcome {
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      padding: 30px 35px;
      border-radius: 16px;
      position: relative;
      z-index: 1;
      box-shadow: 0 8px 25px rgba(234, 88, 12, 0.4);
    }

.pvt-engineering .key-outcome h4 {
      font-size: 18px;
      font-weight: 800;
      color: white;
      margin: 0 0 12px 0;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

.pvt-engineering .key-outcome p {
      font-size: 16px;
      color: white;
      margin: 0;
      line-height: 1.8;
      font-weight: 500;
    }

.pvt-engineering .validation-note {
      text-align: center;
      margin-top: 25px;
      padding: 20px;
      background: rgba(250, 250, 249, 0.05);
      border-radius: 12px;
      border: 1px solid rgba(234, 88, 12, 0.2);
      position: relative;
      z-index: 1;
    }

.pvt-engineering .validation-note p {
      font-size: 15px;
      color: #d6d3d1;
      margin: 0;
      line-height: 1.7;
      font-style: italic;
    }

.pvt-engineering .validation-note strong {
      color: #fb923c;
      font-weight: 700;
    }

/* Section 6: Why Soletks */
    .pvt-engineering .why-soletks-section {
      margin-top: 70px;
    }

.pvt-engineering .why-header {
      text-align: center;
      margin-bottom: 50px;
    }

.pvt-engineering .why-number {
      display: inline-block;
      width: 60px;
      height: 60px;
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      border-radius: 50%;
      font-size: 28px;
      font-weight: 800;
      color: white;
      line-height: 60px;
      margin-bottom: 20px;
      box-shadow: 0 6px 20px rgba(234, 88, 12, 0.3);
    }

.pvt-engineering .why-title {
      font-size: 40px;
      font-weight: 800;
      color: #1a1410;
      margin-bottom: 15px;
      line-height: 1.2;
    }

.pvt-engineering .why-subtitle {
      font-size: 18px;
      color: #78716c;
      max-width: 700px;
      margin: 0 auto;
      line-height: 1.7;
    }

/* Engineering Points */
    .pvt-engineering .engineering-points {
      display: grid;
      gap: 30px;
    }

.pvt-engineering .point-card {
      background: white;
      border-radius: 20px;
      padding: 40px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
      border: 1px solid #e7e5e4;
      transition: all 0.4s ease;
    }

.pvt-engineering .point-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 30px rgba(234, 88, 12, 0.15);
      border-color: rgba(234, 88, 12, 0.3);
    }

.pvt-engineering .point-header {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 20px;
    }

.pvt-engineering .point-number {
      width: 45px;
      height: 45px;
      background: linear-gradient(135deg, rgba(234, 88, 12, 0.15) 0%, rgba(249, 115, 22, 0.2) 100%);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
      color: #ea580c;
      flex-shrink: 0;
    }

.pvt-engineering .point-title {
      font-size: 24px;
      font-weight: 700;
      color: #1a1410;
      margin: 0;
    }

.pvt-engineering .point-description {
      font-size: 16px;
      line-height: 1.8;
      color: #57534e;
      margin-bottom: 20px;
    }

.pvt-engineering .point-content {
      font-size: 15px;
      line-height: 1.8;
      color: #44403c;
      margin-bottom: 20px;
    }

.pvt-engineering .point-benefits {
      background: linear-gradient(135deg, rgba(234, 88, 12, 0.05) 0%, rgba(249, 115, 22, 0.03) 100%);
      padding: 20px 25px;
      border-radius: 12px;
      border-left: 4px solid #ea580c;
    }

.pvt-engineering .point-benefits h5 {
      font-size: 15px;
      font-weight: 700;
      color: #1a1410;
      margin: 0 0 12px 0;
    }

.pvt-engineering .point-benefits ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }

.pvt-engineering .point-benefits li {
      font-size: 14px;
      color: #44403c;
      padding: 6px 0;
      padding-left: 20px;
      position: relative;
      line-height: 1.6;
    }

.pvt-engineering .point-benefits li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: #22c55e;
      font-weight: 700;
      font-size: 16px;
    }

/* Final CTA */
    .pvt-engineering .final-cta {
      background: linear-gradient(135deg, #1a1410 0%, #292524 100%);
      padding: 50px;
      border-radius: 24px;
      margin-top: 60px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

.pvt-engineering .final-cta::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(234, 88, 12, 0.15) 0%, transparent 70%);
      animation: rotate 15s linear infinite;
    }

@keyframes rotate {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

.pvt-engineering .final-cta-content {
      position: relative;
      z-index: 1;
    }

.pvt-engineering .final-cta h3 {
      font-size: 32px;
      font-weight: 800;
      color: #fafaf9;
      margin-bottom: 20px;
      line-height: 1.3;
    }

.pvt-engineering .final-cta .highlight {
      color: #fb923c;
    }

.pvt-engineering .final-cta-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin: 30px 0;
    }

.pvt-engineering .cta-point {
      background: rgba(250, 250, 249, 0.05);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(234, 88, 12, 0.2);
      border-radius: 12px;
      padding: 20px;
    }

.pvt-engineering .cta-point p {
      font-size: 15px;
      color: #e7e5e4;
      margin: 0;
      line-height: 1.7;
      font-weight: 500;
    }

.pvt-engineering .final-statement {
      font-size: 20px;
      font-weight: 700;
      color: #fafaf9;
      margin: 30px 0 0 0;
      line-height: 1.6;
    }

/* Responsive */
    @media (max-width: 992px) {
      .pvt-engineering .hero-title {
        font-size: 36px;
      }
      .pvt-engineering .features-grid,
      .pvt-engineering .stats-grid {
        grid-template-columns: 1fr;
      }
      .pvt-engineering .final-cta-points {
        grid-template-columns: 1fr;
      }
    }

@media (max-width: 576px) {
      .pvt-engineering {
        padding: 60px 0;
      }
      .pvt-engineering .hero-section {
        padding: 40px 25px;
      }
      .pvt-engineering .hero-title {
        font-size: 28px;
      }
      .pvt-engineering .performance-section,
      .pvt-engineering .final-cta {
        padding: 30px 25px;
      }
      .pvt-engineering .point-card {
        padding: 30px 25px;
      }
    }

Laboratory Tested & Field Proven

Soletks Hybrid PVT Panels — Engineered, Tested, and Validated for Real Performance

Soletks hybrid PVT panels are not conceptual prototypes.

They are laboratory-tested, field-proven, and validated under controlled thermal and electrical conditions.

Our Latest PVT Generation Features:

Full-size monocrystalline PV modules (450–600 W class)

Laser-welded aluminum absorber with optimized heat-spread geometry

Selective coating with high absorptance and low emissivity

Micro-channel heat exchanger integrated beneath the PV cells

Rear-mounted thermal control layer for PV temperature stabilization

In Performance Testing, Soletks PVT Panels Demonstrated:

Stable thermal output of 350–500 kWh/m²·year (climate dependent)

Electrical yield at 90–95% of standalone PV modules

Panel temperature reduction of 10–18°C under full irradiance

Zero hotspots or delamination during continuous stagnation cycling

The Key Outcome:
        
          Instead of degrading under heat stress, PV cells operate in a cooler, more efficient condition, producing higher electrical yield while generating usable thermal energy.

All measurements were captured using calibrated sensors under controlled load—never spreadsheet simulations.
          We publish sustained performance, not inflated peak numbers.

6
        Why Soletks PVT — Engineering Built for Real Projects
        
          The solar industry is full of "PVT concepts" that perform well on paper but fail under real operating conditions. Soletks takes an engineering-led, not marketing-led, approach.

1
            Thermal Circuit Designed Around PV Physics

Uniform heat extraction is essential for reliable PVT operation. Soletks uses full-coverage aluminum absorber plates with micro-channel heat exchangers to prevent localized overheating.

Unlike spot-flow or partial-contact designs, our geometry eliminates thermal gradients—the root cause of:

Cell fatigue
              Micro-cracking
              Long-term electrical yield decay

2
            Electrical Yield Preserved, Not Sacrificed

A PVT panel that loses 20–30% PV output is unacceptable. Our architecture extracts heat below the PV operating zone, ensuring:

No shadowing
              No hydraulic deformation
              No clamp hotspots
              No solder-joint fatigue

Field data confirms 90–95% of pure PV output, while also generating thermal gain.

3
            Real Thermal Performance — Not Cosmetic Water-Cooling

Many "PVT" designs rely on laminated capillaries or shallow snake tubes that only cool panels under mild conditions and then stagnate or boil.
          
          Soletks uses:
          
            Technology:
            
              High thermal conductivity plate (k > 200 W/m·K)
              Optimized fluid volume
              Controlled ΔT extraction strategy

This ensures:
            
              Stable heat output in summer
              Predictable return temperatures for heat pumps or storage
              No boiling, stagnation, or thermal runaway

4
            Structural Integrity for Long Service Life

PVT panels endure UV + thermal cycling, moisture ingress, corrosion, mechanical stress, and high stagnation temperatures.
          
          Soletks eliminates common failure points:

No vacuum tubes
              No plastic manifolds
              No adhesive-based thermal paths
              No uncontrolled stagnation risk

Panels use aluminum + EPDM sealing with controlled drainage to prevent moisture accumulation and corrosion.

5
            System-Level Integration — Not Just Selling Panels

Soletks designs complete PVT systems, not loose components.

Our engineering covers:
            
              Buffer + consumption tank configuration
              Constant-temperature return control
              Smart ΔT pump control
              Energy-priority logic (PVT → heat pump → boiler)

This prevents:
            
              Temperature overshoot
              Cavitation at high loads
              Seasonal thermal shock
              Bypass stagnation

6
            Tested for Commercial Duty Cycles

Real projects—hotels, apartments, clinics, worker camps—run hot water 365 days a year.

Soletks PVT panels are validated under:
            
              Continuous recirculation
              Sudden consumption peaks
              Daily start/stop thermal cycles
              Ambient temperatures above 40–50°C

Panel lifespan is measured in years of real operation, not hours of laboratory sunshine.

Why Choose Soletks — Technical Trust, Not Hype

Stable electrical performance

Predictable thermal output

No fragile glass tubes

No polymer creep

No stagnation failures

Full engineering documentation

Soletks products are not built on promises —
          they are built on physics, materials science, and tested thermal behavior.

document.addEventListener('DOMContentLoaded', function() {
  // Staggered animation for point cards
  const pointCards = document.querySelectorAll('.point-card');
  
  const observerOptions = {
    threshold: 0.1,
    rootMargin: '0px 0px -80px 0px'
  };

pointCards.forEach(card => {
    card.style.opacity = '0';
    card.style.transform = 'translateY(30px)';
    card.style.transition = 'all 0.6s ease';
    observer.observe(card);
  });

// Pulse animation for hero badge
  const heroBadge = document.querySelector('.hero-badge');
  setInterval(() => {
    heroBadge.style.transform = 'scale(1.05)';
    setTimeout(() => {
      heroBadge.style.transform = 'scale(1)';
    }, 200);
  }, 3000);
});

.pvt-comparison {
      width: 100%;
      background: linear-gradient(180deg, #f5f5f4 0%, #fafaf9 100%);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      padding: 80px 0;
      position: relative;
    }

.pvt-comparison .comparison-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 30px;
    }

/* Section 7 Header */
    .pvt-comparison .section-header {
      text-align: center;
      margin-bottom: 50px;
    }

.pvt-comparison .section-number {
      display: inline-block;
      width: 60px;
      height: 60px;
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      border-radius: 50%;
      font-size: 28px;
      font-weight: 800;
      color: white;
      line-height: 60px;
      margin-bottom: 20px;
      box-shadow: 0 6px 20px rgba(234, 88, 12, 0.3);
    }

.pvt-comparison .section-title {
      font-size: 40px;
      font-weight: 800;
      color: #1a1410;
      margin-bottom: 15px;
      line-height: 1.2;
    }

/* Comparison Table */
    .pvt-comparison .comparison-table-wrapper {
      background: white;
      border-radius: 20px;
      padding: 40px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
      margin-bottom: 40px;
      overflow-x: auto;
    }

.pvt-comparison .comparison-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
    }

.pvt-comparison .comparison-table thead th {
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      color: white;
      padding: 18px 15px;
      font-size: 14px;
      font-weight: 700;
      text-align: left;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

.pvt-comparison .comparison-table thead th:first-child {
      border-top-left-radius: 12px;
    }

.pvt-comparison .comparison-table thead th:last-child {
      border-top-right-radius: 12px;
    }

.pvt-comparison .comparison-table tbody tr {
      transition: all 0.3s ease;
    }

.pvt-comparison .comparison-table tbody tr:hover {
      background: rgba(234, 88, 12, 0.05);
    }

.pvt-comparison .comparison-table tbody td {
      padding: 18px 15px;
      font-size: 15px;
      color: #44403c;
      border-bottom: 1px solid #e7e5e4;
    }

.pvt-comparison .comparison-table tbody tr:last-child td {
      border-bottom: none;
    }

.pvt-comparison .comparison-table tbody td:first-child {
      font-weight: 700;
      color: #1a1410;
    }

.pvt-comparison .comparison-table .highlight-row {
      background: rgba(234, 88, 12, 0.08);
    }

.pvt-comparison .comparison-table .highlight-row td {
      font-weight: 600;
    }

.pvt-comparison .table-note {
      background: linear-gradient(135deg, rgba(234, 88, 12, 0.08) 0%, rgba(249, 115, 22, 0.05) 100%);
      padding: 25px 30px;
      border-radius: 12px;
      border-left: 4px solid #ea580c;
      margin-top: 25px;
    }

.pvt-comparison .table-note p {
      font-size: 16px;
      color: #44403c;
      margin: 0;
      line-height: 1.8;
    }

.pvt-comparison .table-note strong {
      color: #ea580c;
      font-weight: 700;
    }

/* ROI Section */
    .pvt-comparison .roi-section {
      margin-top: 60px;
    }

.pvt-comparison .roi-header {
      text-align: center;
      margin-bottom: 50px;
      padding: 40px;
      background: linear-gradient(135deg, #1a1410 0%, #292524 100%);
      border-radius: 20px;
      position: relative;
      overflow: hidden;
    }

.pvt-comparison .roi-header::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(234, 88, 12, 0.15) 0%, transparent 70%);
      animation: pulse-rotate 8s ease-in-out infinite;
    }

@keyframes pulse-rotate {
      0%, 100% { transform: rotate(0deg) scale(1); }
      50% { transform: rotate(180deg) scale(1.1); }
    }

.pvt-comparison .roi-header-content {
      position: relative;
      z-index: 1;
    }

.pvt-comparison .roi-emoji {
      font-size: 48px;
      margin-bottom: 15px;
    }

.pvt-comparison .roi-title {
      font-size: 36px;
      font-weight: 800;
      color: #fafaf9;
      margin-bottom: 15px;
      line-height: 1.2;
    }

.pvt-comparison .roi-subtitle {
      font-size: 17px;
      color: #d6d3d1;
      max-width: 900px;
      margin: 0 auto 25px;
      line-height: 1.7;
    }

.pvt-comparison .roi-assumptions {
      display: inline-block;
      background: rgba(250, 250, 249, 0.1);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(234, 88, 12, 0.3);
      border-radius: 12px;
      padding: 20px 30px;
      text-align: left;
    }

.pvt-comparison .roi-assumptions ul {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

.pvt-comparison .roi-assumptions li {
      font-size: 14px;
      color: #e7e5e4;
      padding-left: 20px;
      position: relative;
    }

.pvt-comparison .roi-assumptions li::before {
      content: '▸';
      position: absolute;
      left: 0;
      color: #fb923c;
      font-weight: 700;
    }

/* Regional Cards */
    .pvt-comparison .regional-cards {
      display: grid;
      gap: 30px;
      margin-bottom: 60px;
    }

.pvt-comparison .regional-card {
      background: white;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
      border: 2px solid transparent;
      transition: all 0.4s ease;
    }

.pvt-comparison .regional-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 30px rgba(234, 88, 12, 0.15);
      border-color: rgba(234, 88, 12, 0.3);
    }

.pvt-comparison .regional-card.eu {
      border-top: 4px solid #3b82f6;
    }

.pvt-comparison .regional-card.mena {
      border-top: 4px solid #f97316;
    }

.pvt-comparison .regional-card.latam {
      border-top: 4px solid #eab308;
    }

.pvt-comparison .regional-header {
      padding: 35px 40px 25px;
      background: linear-gradient(135deg, rgba(234, 88, 12, 0.05) 0%, rgba(249, 115, 22, 0.03) 100%);
    }

.pvt-comparison .regional-emoji {
      font-size: 40px;
      margin-bottom: 12px;
    }

.pvt-comparison .regional-title {
      font-size: 28px;
      font-weight: 800;
      color: #1a1410;
      margin-bottom: 10px;
      line-height: 1.2;
    }

.pvt-comparison .regional-subtitle {
      font-size: 16px;
      color: #78716c;
      font-weight: 600;
    }

.pvt-comparison .regional-body {
      padding: 35px 40px;
    }

.pvt-comparison .assumptions-box {
      background: rgba(234, 88, 12, 0.05);
      padding: 20px 25px;
      border-radius: 12px;
      margin-bottom: 25px;
      border-left: 3px solid #ea580c;
    }

.pvt-comparison .assumptions-box h4 {
      font-size: 14px;
      font-weight: 700;
      color: #ea580c;
      margin: 0 0 12px 0;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

.pvt-comparison .assumptions-box ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }

.pvt-comparison .assumptions-box li {
      font-size: 14px;
      color: #44403c;
      padding: 6px 0;
      padding-left: 20px;
      position: relative;
    }

.pvt-comparison .assumptions-box li::before {
      content: '•';
      position: absolute;
      left: 0;
      color: #ea580c;
      font-weight: 700;
      font-size: 18px;
    }

.pvt-comparison .performance-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      margin-bottom: 25px;
    }

.pvt-comparison .performance-table thead th {
      background: #f5f5f4;
      padding: 12px 15px;
      font-size: 13px;
      font-weight: 700;
      color: #1a1410;
      text-align: left;
      border-bottom: 2px solid #ea580c;
    }

.pvt-comparison .performance-table tbody td {
      padding: 15px;
      font-size: 14px;
      color: #44403c;
      border-bottom: 1px solid #e7e5e4;
    }

.pvt-comparison .performance-table tbody tr:last-child td {
      border-bottom: none;
    }

.pvt-comparison .performance-table tbody tr:hover {
      background: rgba(234, 88, 12, 0.03);
    }

.pvt-comparison .performance-table .pvt-row {
      background: rgba(234, 88, 12, 0.08);
      font-weight: 600;
    }

.pvt-comparison .performance-table .payback-cell {
      font-weight: 700;
      color: #ea580c;
    }

.pvt-comparison .example-box {
      background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
      padding: 25px 30px;
      border-radius: 12px;
      color: white;
      box-shadow: 0 6px 20px rgba(234, 88, 12, 0.3);
    }

.pvt-comparison .example-box h4 {
      font-size: 16px;
      font-weight: 800;
      margin: 0 0 15px 0;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

.pvt-comparison .example-box p {
      font-size: 15px;
      margin: 8px 0;
      line-height: 1.7;
    }

.pvt-comparison .example-box strong {
      font-weight: 700;
    }

/* Why Numbers Matter */
    .pvt-comparison .numbers-matter {
      background: linear-gradient(135deg, #1a1410 0%, #292524 100%);
      padding: 50px;
      border-radius: 24px;
      margin-bottom: 50px;
      position: relative;
      overflow: hidden;
    }

.pvt-comparison .numbers-matter::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: radial-gradient(ellipse at bottom right, rgba(234, 88, 12, 0.15) 0%, transparent 50%);
    }

.pvt-comparison .numbers-matter-content {
      position: relative;
      z-index: 1;
    }

.pvt-comparison .numbers-matter h3 {
      font-size: 32px;
      font-weight: 800;
      color: #fafaf9;
      margin-bottom: 25px;
      text-align: center;
    }

.pvt-comparison .numbers-matter .emoji {
      font-size: 36px;
      margin-right: 10px;
    }

.pvt-comparison .numbers-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
      margin-bottom: 30px;
    }

.pvt-comparison .number-card {
      background: rgba(250, 250, 249, 0.05);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(234, 88, 12, 0.3);
      border-radius: 16px;
      padding: 25px;
      text-align: center;
      transition: all 0.3s ease;
    }

.pvt-comparison .number-card:hover {
      background: rgba(250, 250, 249, 0.08);
      border-color: rgba(234, 88, 12, 0.5);
      transform: translateY(-3px);
    }

.pvt-comparison .number-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: #fb923c;
      margin: 0 0 10px 0;
    }

.pvt-comparison .number-card p {
      font-size: 15px;
      color: #d6d3d1;
      margin: 0;
      line-height: 1.6;
    }

.pvt-comparison .conclusion-box {
      background: rgba(234, 88, 12, 0.15);
      border: 2px solid rgba(234, 88, 12, 0.3);
      border-radius: 12px;
      padding: 25px 30px;
      text-align: center;
    }

.pvt-comparison .conclusion-box p {
      font-size: 18px;
      font-weight: 600;
      color: #fafaf9;
      margin: 0;
      line-height: 1.7;
    }

.pvt-comparison .conclusion-box strong {
      color: #fb923c;
      font-weight: 800;
    }

/* Decision Logic */
    .pvt-comparison .decision-logic {
      background: white;
      padding: 50px;
      border-radius: 24px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

.pvt-comparison .decision-logic h3 {
      font-size: 32px;
      font-weight: 800;
      color: #1a1410;
      margin-bottom: 15px;
      text-align: center;
    }

.pvt-comparison .decision-logic .emoji {
      font-size: 36px;
      margin-right: 10px;
    }

.pvt-comparison .decision-logic .subtitle {
      font-size: 16px;
      color: #78716c;
      text-align: center;
      margin-bottom: 40px;
    }

.pvt-comparison .scenario-cards {
      display: grid;
      gap: 25px;
    }

.pvt-comparison .scenario-card {
      background: linear-gradient(135deg, rgba(234, 88, 12, 0.05) 0%, rgba(249, 115, 22, 0.03) 100%);
      border: 2px solid rgba(234, 88, 12, 0.2);
      border-radius: 16px;
      padding: 30px;
      transition: all 0.3s ease;
    }

.pvt-comparison .scenario-card:hover {
      border-color: rgba(234, 88, 12, 0.4);
      transform: translateX(5px);
    }

.pvt-comparison .scenario-card h4 {
      font-size: 20px;
      font-weight: 700;
      color: #1a1410;
      margin: 0 0 15px 0;
    }

.pvt-comparison .scenario-card .condition {
      font-size: 15px;
      color: #57534e;
      margin-bottom: 15px;
      font-weight: 600;
    }

.pvt-comparison .scenario-card .applications {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 15px;
    }

.pvt-comparison .scenario-card .app-tag {
      background: rgba(234, 88, 12, 0.15);
      color: #ea580c;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
    }

.pvt-comparison .scenario-card .result {
      font-size: 14px;
      color: #44403c;
      font-style: italic;
      line-height: 1.6;
    }

/* Responsive */
    @media (max-width: 992px) {
      .pvt-comparison .section-title {
        font-size: 34px;
      }
      .pvt-comparison .roi-title {
        font-size: 30px;
      }
      .pvt-comparison .numbers-grid {
        grid-template-columns: 1fr;
      }
      .pvt-comparison .roi-assumptions ul {
        grid-template-columns: 1fr;
      }
    }

@media (max-width: 576px) {
      .pvt-comparison {
        padding: 60px 0;
      }
      .pvt-comparison .comparison-table-wrapper,
      .pvt-comparison .regional-body,
      .pvt-comparison .numbers-matter,
      .pvt-comparison .decision-logic {
        padding: 25px;
      }
      .pvt-comparison .section-title {
        font-size: 28px;
      }
      .pvt-comparison .comparison-table {
        font-size: 13px;
      }
    }

7
      PVT vs Conventional Solutions

Option
            Roof Use
            Output Type
            Energy per m²
            CAPEX per energy unit
            Complexity

PV only
            Electricity
            kWh electric only
            Medium
            Good for electricity
            Simple

Solar thermal only
            Heat
            kWh thermal only
            High
            Very competitive for DHW
            Medium

PVT hybrid
            Combined
            kWh electric + kWh thermal
            Very high total
            Often lowest per kWh (combined)
            Higher but integrated

PVT is not replacing classic PV or solar thermal in every case.
          But when roof area is limited and there is simultaneous demand for power and heat, PVT is often the most efficient and compact choice.

🔥
          PVT vs PV ROI — Realistic Regional Examples
          
            Below is a practical B2B comparison, based on typical commercial buildings (hotel / student housing / clinic), where electricity + hot water demand coexist. It is not theoretical marketing—it reflects real energy prices, hot water loads, and panel performance.

Roof constraint: 80–120 m² usable area
              Electric tariff: local commercial rate
              DHW demand: 1–4 tons/day @ 45–55°C
              PVT output: 1 unit delivers electricity + heat
              PV output: electricity only

🔵
            Europe (EU)

Accepted Answer

High electricity cost + heating demand = PVT perfect

Question 8

Middle East & North Africa (MENA)

Accepted Answer

High sun + hotel demand = PVT extremely efficient

Question 9

Latin America (LATAM)

Accepted Answer

Medium prices, high sun, strong thermal demand

Επιλογή	Χρήση στη στέγη	Τύπος εξόδου	Ενέργεια ανά τ.μ.	CAPEX ανά μονάδα ενέργειας	Πολυπλοκότητα
Μόνο φωτοβολταϊκά	Ηλεκτρική ενέργεια	kWh μόνο ηλεκτρική	Μεσαίο	Καλά για ηλεκτρική ενέργεια	Απλό
Μόνο ηλιακή θερμική	Θέρμανση	kWh θερμική μόνο	Υψηλό	Πολύ ανταγωνιστικό για ΖΝΧ	Μεσαίο
PVT υβριδικό	Συνδυασμένο	kWh ηλεκτρική + kWh θερμική	Πολύ υψηλό συνολικά	Συχνά το χαμηλότερο ανά kWh (συνδυασμένο)	Υψηλότερο αλλά ολοκληρωμένο

Σύστημα	Ετήσια Παραγωγή Ενέργειας (ανά τ.μ.)	Οικονομικό Αποτέλεσμα	Απόσβεση
Μόνο φωτοβολταϊκά	180–220 kWh ηλεκτρική ενέργεια	Καλή, αλλά περιορίζεται από τη στέγη	5–8 έτη
PVT υβριδικό	180–220 kWh ηλεκτρική + 350–500 kWh θερμική	Θερμική αντικαθιστά ακριβό αέριο/ηλεκτρική θέρμανση	2,8–4,5 έτη

Σύστημα	Ετήσια Παραγωγή Ενέργειας	Οικονομικό Αποτέλεσμα	Απόσβεση
Μόνο φωτοβολταϊκά	250–380 kWh / m²	Άριστη ηλεκτρική απόδοση	3,5–6 έτη
PVT υβριδικό	250–380 kWh + 550–750 kWh θερμικά	Κορυφαία απόδοση επένδυσης λόγω ΖΝΧ & πισίνων	2,0–3,0 έτη

Σύστημα	Ετήσια Παραγωγή Ενέργειας	Οικονομικό Αποτέλεσμα	Απόσβεση
Μόνο φωτοβολταϊκά	220–350 kWh/m²	Πολύ ισχυρά αποτελέσματα	4–7 έτη
PVT υβριδικό	220–350 kWh + 350–600 kWh θερμικό	Καλύτερη απόδοση επένδυσης σε πλυντήρια / τρόφιμα / θέρετρα	2,2–3,8 έτη

Ξεκλειδώστε το Πλήρες Δυναμικό σε Κάθε Τετραγωνικό Μέτρο

PVT Ηλιακό πάνελ

Τύπος PVT-E

Τύπος PVT-T

Τύπος TP/V Pro

Υβριδικά Ηλιακά Συστήματα PVT — Μία Πλάκα, Δύο Ενέργειες

Τι είναι ένα Σύστημα PVT;

Μπροστινή Πλευρά

Πίσω Πλευρά

Γιατί PVT αντί για ξεχωριστά PV + Θερμικό;

Μέγιστη ενέργεια ανά τ.μ. επιφάνειας στέγης

Ιδανικό για:

Καλύτερη αποδοτικότητα PV μέσω ενεργού ψύξης

Χαμηλότερο κόστος συστήματος σε σύγκριση με δύο ξεχωριστά συστήματα

Ισχυρή Βιωσιμότητα & Αξία ESG

Τυπικές εφαρμογές PVT & ολοκληρωμένες λύσεις

Κατοικίες & Πολυκατοικίες

Ξενοδοχεία, θέρετρα & φιλοξενία

Νοσοκομεία, Κλινικές & Φροντίδα Ηλικιωμένων

Βιομηχανικές & Αγροδιατροφικές Διαδικασίες

Γραφεία, Εμπορικά και Δημόσια Κτίρια

Πώς λειτουργεί ένα Σύστημα PVT

Υβριδικά πάνελ PVT

Υδραυλικός κύκλος & Εναλλάκτης θερμότητας

Ζεστά νερά & Δοχεία buffer

Ηλεκτρική Πλευρά

Έλεγχος & Παρακολούθηση

PVT + Αντλία Θερμότητας = Υβριδικό Σύστημα Υψηλής Απόδοσης

Πώς λειτουργεί το Υβριδικό

Τυπικές Περιπτώσεις Χρήσης

Soletks Hybrid PVT Panels — Μηχανουργικά σχεδιασμένα, δοκιμασμένα και επικυρωμένα για πραγματική απόδοση

Οι πιο πρόσφατες δυνατότητες της γενιάς PVT μας:

Στη Δοκιμή Απόδοσης, τα πάνελ PVT της Soletks απέδειξαν:

Το βασικό αποτέλεσμα:

Γιατί το Soletks PVT — Μηχανική κατασκευασμένη για Πραγματικά Έργα

Θερμικό κύκλωμα σχεδιασμένο γύρω από τη Φυσική του PV

Διατήρηση της ηλεκτρικής απόδοσης, όχι θυσία

Πραγματική Θερμική Απόδοση — Όχι Εμφανισιακό Νερόψυκτρο

Τεχνολογία:

Αυτό διασφαλίζει:

Δομική ακεραιότητα για μακρά διάρκεια ζωής

Ολοκληρωμένη ενσωμάτωση συστήματος — Όχι μόνο πώληση πινάκων

Ο μηχανικός μας καλύπτει:

Αυτό αποτρέπει:

Δοκιμασμένο για εμπορικούς κύκλους λειτουργίας

Οι πίνακες PVT της Soletks έχουν επικυρωθεί υπό:

Γιατί να επιλέξετε Soletks — Τεχνική εμπιστοσύνη, όχι υπερβολή

PVT έναντι Συμβατικών λύσεων

Απόδοση επένδυσης PVT vs PV — Ρεαλιστικά παραδείγματα από την Ελλάδα

Ευρώπη (ΕΕ)

👉 Υποθέσεις

Παράδειγμα (ξενοδοχείο 80–100 τ.μ. στη Γαλλία):

Μέση Ανατολή & Βόρεια Αφρική (ΜΕΒΑ)

👉 Υποθέσεις

Παράδειγμα (θέρετρο 100 δωματίων στη Γαλλία):

Λατινική Αμερική (LATAM)

👉 Υποθέσεις

Ελλάδα / Περού / Βραζιλία / Χιλή:

📊 Γιατί αυτοί οι αριθμοί έχουν σημασία (όχι μόνο στο μάρκετινγκ)

PV

Ηλιακή Θερμότητα

PVT

💡 Πρακτικές Οδηγίες ανά Σενάριο

Αν η στέγη είναι μεγάλη → PV + Θερμική λειτουργεί καλά

Αν η στέγη είναι περιορισμένη και η ΖΝΧ είναι σημαντική → PVT κερδίζει

Αν υπάρχει ενσωμάτωση αντλίας θερμότητας → PVT γίνεται κυρίαρχο

Συνήθεις ερωτήσεις (FAQ)

Q1 Πότε το PVT έχει περισσότερο νόημα από το κανονικό PV;

Q2 Ποιες θερμοκρασίες μπορεί να προσφέρει το Soletks PVT;

Q3 Λειτουργεί το PVT σε ψυχρά κλίματα;

Q4 Μπορεί το PVT να ενσωματωθεί σε όψεις ή BIPV/BIPVT;

Q5 Πόσο πολύπλοκη είναι η εγκατάσταση σε σύγκριση με το PV;

Ξεκινήστε ένα Έργο PVT με τη Solar της Soletks

Email

Address

Εταιρεία

Έτοιμοι να ξεκινήσετε;

Ας Συνδεθούμε

Ξεκλειδώστε το Πλήρες Δυναμικό
σε Κάθε Τετραγωνικό Μέτρο