What is PVT?
PVT is a powerful symbiosis of electricity and heat generation. In other words: PVT solar modules on your roof generate a supply of both electricity and heat. This powerful combination creates a self-sufficient energy system suitable for trade and industry, over residential housing to modern district heating systems covering large urban areas, our PVT modules enable sector coupling for the expanded use of clean energy.
Maximum energy from the sun
Today there are two different systems for using solar energy. Photovoltaic modules convert solar energy into electricity and solar collectors convert solar radiation into heat. PVT modules can do both, in a single product.
As a result, the solar energy radiated onto a roof can be used with maximum efficiency, with both electricity and heat produced at the same time. This makes maximum use of the available space and is therefore the most efficient solution for using solar energy. Combined with heat pumps, PVT modules work very effectively to provide almost self-sufficient, 100 percent climate-neutral heat and electricity.
A PVT module consists of solar cells for converting solar energy into electricity and a heat exchanger for generating thermal energy.
The PVT modules from Sunmaxx use the highest quality and most efficient solar cells of the latest generation and use exceptionally efficient and highly developed systems from the automotive industry for thermal management. Sunmaxx PVT is the only manufacturer in the world that can offer this unique combination. This is our competitive advantage with which we will revolutionize the electricity and heat market – climate-friendly, sustainable, and without greenwashing.
Developed in cooperation with the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg.
Our hybrid solar panels combine the technology of PV-modules and solar collectors to generate both heat and electricity at the same time.
Made in Europe:
Our modules are manufactured in the EU to the highest quality standards.
Completely carefree:
10 years product guarantee
25 years linear performance guarantee
(electrical power)
97 % after the 1st year,
80 % after the 25th year
| 1 | Estimation without obligation |
| 2 | STC Conditions |
| 3 | Radiation: 1000 W/m², Volume Flow: 144 l/h, Temperature: 25°C, Wind speed: 0 m/s, Delta T = 0 Kelvin, MPP measuring |
| 4 | 100 l/h, 20 °C (water) |
| 5 | Radiation: 1000 W/m², Volume Flow: 144 l/h, Temperature: 25°C, Wind speed: 0 m/s, Delta T = 0 Kelvin 0,76 corresponds to 1522 W, 0,6 corresponds to 1200 W |
| Measurement accuracy PMPP at STC -3/+3% | Tolerance remaining electrical values -10/+10 % | |
| Certification: Solar Keymark DIN EN 12975:2022-06 / DIN EN ISO 9806:2018-06 | |
| Errors and omissions excepted. Vers. 3.4, Status 08.2024 | |
Sunmaxx PX-1 Premium PVT-Modul
Highest efficiency and space-saving:
The simultaneous generation of electricity and heat enables a higher total efficiency.
Flexible operation:
For use on roofs or open spaces. From residential buildings to industrial buildings to cold local heating networks.
Combination with heat pumps and geothermal energy:
By using PVT-Modules, heat pumps can be operated more efficiently, and geothermal probes can be regenerated.
Generates more electricity:
Generates more electricity: Thanks to the cooling of the PVT module, an increase of 5 to 10 % in electrical output is achieved.1
Plug & Play:
Installation-friendly connectors make it easy to connect the electrics and hydraulics.
Sustainability:
The aluminium heat exchanger on the back is optimised to save material and is easily recyclable. Produced with 100 % independently certified green electricity.
| General | Unit | |
| Dimensions | [mm] | 1,725 x 1,137 x 40 |
| Weight | [kg] | 29 |
| Front | - | Highly transparent solar glass ESG (3.2 mm) |
| Heat exchanger | - | Aluminium-Alloy |
| Frame | - | Anodised aluminium, black |
| Cell background film | - | Polymer film black |
| Electrical Data | Unit | 425 W | 430 W | 435 W | 440 W |
| Type | - | 108 M10 Mono half cell TopCon | |||
| Nominal PV power 2 | [W] | 425 | 430 | 435 | 440 |
| Voltage MPP V MPP | [V] | 33.1 | 31.4 | 31.6 | 31.7 |
| Current MPP I MPP | [A] | 13.6 | 13.7 | 13.8 | 13.9 |
| Open circuit voltage V OC | [V] | 37.9 | 38.1 | 38.2 | 38.4 |
| Short circuit voltage I SC | [A] | 14.3 | 14.4 | 14.4 | 14.6 |
| Efficiency | [%] | 21.8 | 22.0 | 22.3 | 22.5 |
| Max. system voltage V DC | [V] | 1,500 | |||
| Reverse current load capacity 2 | [A] | 25 | |||
| Temperature coefficients | [%] | power α + 0.045%/K voltage β – 0.25%/K current γ -0,30%/K | |||
| Connection | - | 3-part junction box according to IEC 62790, MC4 compatible connector according to EN 62852 | |||
| Thermal Data | Unit | |
| Thermal power 3 | [W] | 1,200 |
| Thermal carrier medium | - | Water-glycol mixture |
| Volume thermal carrier medium | [I] | 0.7 |
| Pressure drop4 | [mBar] | 29 |
| Hydraulic connection | - | Plug in connector with flexible tube |
| Testing pressure | Bar | 6 |
| Operating pressure | Bar | 1 - 2 |
| Specific flow | [l/h] | 50 – 150 |
| Stagnation temperature | °C | 81 |
| Thermal collector efficiency: η₀ 5 | - | 0.76 / 0.60 (VOC / MPP) |
| 1 | Estimation without obligation |
| 2 | STC Conditions |
| 3 | Radiation: 1000 W/m², Volume Flow: 144 l/h, Temperature: 25°C, Wind speed: 0 m/s, Delta T = 0 Kelvin, MPP measuring |
| 4 | 100 l/h, 20 °C (water) |
| 5 | Radiation: 1000 W/m², Volume Flow: 144 l/h, Temperature: 25°C, Wind speed: 0 m/s, Delta T = 0 Kelvin 0,76 corresponds to 1522 W, 0,6 corresponds to 1200 W |
| Measurement accuracy PMPP at STC -3/+3% | Tolerance remaining electrical values -10/+10 % | |
| Certification: Solar Keymark DIN EN 12975:2022-06 / DIN EN ISO 9806:2018-06 | |
| Errors and omissions excepted. Vers. 3.4, Status 08.2024 | |
What advantages does PVT offer in combination with geothermal?
This is what you need to know before you choose our PVT system:
Cost advantage through funding
There are a variety of funding opportunities when PVT is included in projects. The application ranges from single-family homes to process heat in industry to local heating networks.
Our PVT is viewed as the optimal source for the heat pump and is therefore fully eligible for funding.
Systemic advantage
PVT modules capture sunlight and convert it into electricity just like a photovoltaic system does. In contrast to pure PV systems, however, PVT systems have a built-in heat exchangers on the back of the PVT module. This is extracting heat from the solar cells and transfer it to a heating circuit. At the same time, the cooling of the solar cells further increases electricity yield.
Efficiency beyond limits
Thanks to a technology that is already established in the automotive sector, the Sunmaxx PVT module offers a high-performance and cost-efficient solution for the transition towards renewable energy. Together with our partners, we stand for efficiency beyond limits and get the most out of ourselves and the sun!
Interested in decarbonizing your company, city or community? Secure your project today and contact us.
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