PVT-T Energy System

The carbon neutrality target in the construction sector is imposing higher requirements on energy solutions. Traditional solar energy technologies often face a practical dilemma: photovoltaic (PV) modules can only generate electricity, while thermal collectors can only produce heat. Operating independently from each other, they fail to meet the multi-dimensional energy demands of buildings for electricity, heating and cooling. This not only limits solar energy utilization efficiency, but also results in the waste of valuable building facades and roof spaces.

The birth of the PVT-E module is precisely aimed at resolving this fundamental contradiction. It is more than just a product; it is a complete energy solution that transforms the exterior surfaces of buildings into efficient, intelligent and high-yield clean energy hubs.

1. Redefining Building Energy Boundaries: From Single-function Energy Supply to Integrated Cogeneration

Traditional solar energy utilization methods have inherent efficiency bottlenecks. During operation, over 50% of solar radiation energy absorbed by PV modules is converted into heat, causing a rise in cell temperature and triggering a vicious cycle where higher temperatures lead to lower efficiency. In contrast, thermal collectors completely ignore the high-energy photons that could be harnessed for photovoltaic power generation.

The PVT-E module breaks this deadlock through systematic collaborative design. We have innovatively integrated high-efficiency heat transfer channels on the back of the PV module, turning the "waste heat" generated during photovoltaic power generation from a burden into a valuable resource. This system functions like a precision energy dispatching center:

• For the photovoltaic part, it provides active cooling, maintaining the operating temperature of the cells steadily within the optimal efficiency range of 25–45℃, thus stabilizing the photoelectric conversion efficiency at a high level of 22.4%.

• For the thermal energy part, it efficiently collects this "waste heat" to produce usable thermal energy at temperatures above 45℃, with a photothermal conversion efficiency exceeding 35%.

• For the overall system, it achieves cascade utilization of the full solar spectrum, with the comprehensive energy efficiency breaking through 80%. The energy output per unit area is 2–3 times that of traditional PV systems.

2. Four Core Advantages: Maximizing Value from Every Square Inch of Space

2.1 Efficiency Breakthrough: Redefining the Limits of Solar Energy Utilization

• Comprehensive energy efficiency reaches over 80%, far higher than that of single-technology systems.

• Thanks to effective temperature control, the photovoltaic part achieves a 16%+ increase in power generation throughout its lifecycle.

• For every 1℃ reduction in operating temperature, power generation efficiency improves by 0.3%–0.5%.

2.2 Space Intensification: Dual Output from the Same Area

• Simultaneously generates electricity and thermal energy within the same space.

• Saves more than 50% of roof space compared to installing separate PV and solar thermal systems.

• Maximizes energy output from building facades.

2.3 Remarkable Economic Benefits: Double Guarantee for Investment Returns

• One-time investment delivers dual benefits: savings on both electricity and heating bills.

• Extends module service life and reduces lifecycle maintenance costs.

• Improves building energy efficiency ratings and enhances property value.

2.4 Environmentally Friendly and Reliable: Supporting Carbon Neutrality Goals

• Zero carbon emissions during operation.

• Provides stable renewable electricity and heat sources for buildings.

• Reduces reliance on traditional energy sources.

3. Technological Breakthroughs: From Laboratory Innovation to Industrial Application

3.1 Spectral Intelligent Management Technology

We adopt multi-layer cermet semiconductor coatings and realize the "intelligent allocation" of solar spectrum through the synergy of advanced PVD and CVD processes. This technology ensures that light of different wavelengths is put to optimal use: high-energy photons suitable for power generation are directed to the photovoltaic layer, while the remaining energy is efficiently converted into thermal energy.

3.2 Revolutionary Breakthrough in Heat Transfer Interface

We have overcome the challenge of reliably bonding heterogeneous materials in a high-vacuum environment. Our independently developed stepwise temperature field thermal curing process enables molecular-level bonding between PV chips and heat transfer substrates, completely eliminating defects such as bubbles and microcracks associated with traditional processes, and significantly improving heat conduction efficiency.

3.3 Three-dimensional Thermal Protection System

A comprehensive protection system has been constructed, including a nano-aerogel insulation layer, a staggered insulation structure, an inert gas interlayer and a low-emissivity coating. This system reduces the overall heat loss of the system to a fraction of that of traditional designs, ensuring high-quality thermal energy output.

3.4 Intelligent Collaborative Control System

Embedded with an intelligent algorithm based on a multi-physics field model, the system can real-time sense environmental changes and load demands, dynamically adjust operating parameters, and maintain optimal working conditions at all times.

4. Why Choose Us: Dual Guarantee of Technological Strength and Manufacturing Capability

Centrotherm (Syntronik) boasts a complete technology layout and profound industrial accumulation in the solar energy sector:

4.1 Strong R&D Capabilities

• Possesses more than 30 core patented technologies, covering the entire chain from coating materials to system integration.

• Most patented technologies have been successfully industrialized, with mature production processes in place.

• Maintains technological leadership in key areas such as thermoelectric coupling and high-efficiency heat transfer.

4.2 Excellent Manufacturing Capacity

• Has built an internationally advanced intelligent production line, with automation rate of key processes reaching over 85%.

• Equipped with high-efficiency heat transfer automatic welding equipment and intelligent assembly lines to ensure product consistency and reliability.

• Implements a strict quality control system to achieve full-process quality traceability in production.

4.3 Comprehensive Testing and Verification System

• Features a 500-square-meter professional testing platform, equipped with high-end equipment such as spectrum analyzers and IV test systems.

• Capable of conducting full-dimensional testing and verification from material properties to complete machine performance.

• Ensures that every module meets design standards and operational requirements.

5. Application Prospects: Building a New Ecology of Building Energy

The PVT-E module is particularly suitable for:

• Integrated supply of cooling, heating and electricity for commercial and public buildings.

• Centralized heating and supplementary power supply for residential communities.

• Process heating and power demand for industrial plants.

• Temperature control and power supply for agricultural greenhouses.

In the process of buildings moving towards carbon neutrality, the PVT-E module represents a more intensive, efficient and intelligent energy solution. It is not just a product, but a "high-output, high-reliability, high-return" clean energy system that we build for our customers.

Choosing SOLETKS means partnering with an enterprise with full-industry-chain technical capabilities and large-scale industrialization experience. We are committed to helping every customer forge a steadier and farther path in energy transformation through continuous technological innovation and excellent product quality. Let us work together to create a greener, more efficient and sustainable future for building energy.