PVT Collectors
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Our PVT collectors combine solar power and solar heat generation in a single module. Maximum efficiency, minimal space requirements – the perfect solution for your energy transition.
SETTING GLOBAL STANDARDS
GREENoneTEC is the global market leader in the production of thermal solar collectors, mounting systems as well as large-area collectors and systems.
PVT Collectors – the new technology
The company has been shaping the solar market for over 30 years and is launching another solar technology with its PVT collectors to further advance energy independence.
The owner-managed solar pioneer is already exporting to more than 119 countries worldwide.
PVT Systems are TWICE AS SUSTAINABLE
Electricity, Heat and Cooling combined.
Photovoltaics
Sunlight is converted into electrical energy with the help of semiconductor cells.
On hot days, the module heats up to 80°C. A thermal collector mounted on the back cools the solar cells and therefore increases the electricity yield.
Thermal unit
Solar collectors are required to convert solar energy into heat. Through symbiosis with solar thermal energy, the resulting waste heat can be discharged and transformed into usable heat by the heat exchanger. Two different variants are available, depending on the application. They differ in the design of the thermal component.
Twice as strong – Twice as sustainable
Electricity, heat, and cooling in one.
PVT is an innovative system that provides two forms of energy on a single surface while simultaneously enabling higher overall efficiency. With the PVT collectors, you gain numerous benefits:
Significant reduction in operating costs
Free unlimited use of energy source
Increase heat pump performance to above COP 5
Standardised components
Simple Installation – Plug & Play
No more complex geothermal probes/deep drilling
Heat pump function for defrosting PV
Future Technology that speaks for itself
Households in Northern and Central Europe use 80% of their energy for heating. The combination of photovoltaics and solar thermal energy in conjunction with a heat pump results in significant savings in operational management. More efficient use of solar energy is not possible at present.
Optimised heating of heat pumps
The use of PVT collectors enables more efficient operation of heat pumps and regeneration of geothermal probes.
PV*T provides highly sustainable solutions for new buildings with low energy requirements and for renovations, as it reduces energy consumption and increases the efficiency of heat pumps.
PVT VARIANTS
for many applications
Retrofitting PV
Existing PV modules can be retrofitted with the PV*T FLEX thermal component, which is compatible with all common module sizes and mounting systems.
PV
Component
- Free choice of modules (1722 × 1134 × 30 mm)
- Power > 420 Wp
- Free choice of mounting system
- Free choice of inverter
- Connection box, central, max. width 35 mm
Energy source on the roof
PV*T FLEX is optimised for integration into a heat pump system as an energy source. The surface-optimised aluminium fins on the back serve as heat exchangers. The distance between the thermal and the PV component guarantees the necessary air circulation. At the same time, cooling the PV
enables a higher electricity yield.
*T
Component
FLEX
- Heat exchanger/source for heating and cooling
- Heat pumps operate more efficiently
- Ideal for regenerating geothermal probes
- Option of extending existing PV systems
- Completely silent
- Suitable for PV modules with standard dimensions 1722 × 1134 × 30 mm
- Free choice of PV mounting system, inverters, cabling, etc.
- Max. operating pressure: 2.5 bar
- Lightweight: 16 kg (without PV module)
- Connected via stainless steel corrugated pipe
- Easy installation
- No maintenance required
Efficient use of process heat
PV*T SOLID was specially developed for systems where it makes sense to use process heat immediately – whether for heating swimming pools or regenerating geothermal probes in the summer months. Here, the thermal component is connected directly to the PV module. Optimal operation in the
low temperature range.
*T
Component
SOLID
- Heat pumps operate more efficiently
- Ideal for regenerating geothermal probes
- Completely silent operation
- Dimensions 1725 × 1137 × 40 mm
- Higher power output due to cooling of the PV modules
- Heat exchanger made of aluminium
- Operating pressure: 1–2 bar
- Lightweight: 25 kg (incl. PV module)
- Connections: plug connectors with flexible hose
- Easy installation
- No maintenance required
With a PVT system, you benefit in multiple ways.
By utilizing the ambient temperature, PVT systems achieve an efficiency of 80%, operate 24 hours a day, and are completely silent.
80% EFFICIENCY
Outstanding performance in converting sunlight into energy
24/7 POWER GENERATION
Operates around the clock, even in darkness, cold, fog, and rain
0dB NOISE
Silent operation compared to conventional outdoor units of heat pump systems
PLUG & PLAY IN ITS MOST PERFECT FORM
Installation of PVT collectors is simple and standardized.
- Easy connection of electrical and hydraulic components using plug connectors
- Pre-fitted O-rings for simple, reliable sealing
- Cables secured using clamps
- No additional mounting materials or tools required
Quick installation
Roof-mounted installation above the tiles using standard PV fasteners
Simple wiring and integration
OUR MOST COMPELLING ARGUMENT: EFFICIENCY
Questions
& Answers
What is a PVT collector?
The PVT collector combines solar and photovoltaic technology – i.e. it is a photovoltaic-thermal solar collector. The PV part generates electricity from the sun and the *T part (= heat exchanger) behind it utilises the ambient air to generate heat.
PVT collectors can therefore also work at night and in winter, which means that in combination with brine/water heat pumps, they can provide the heating required all year round. This is made possible by the heat exchanger on the back, the *T part, which is used as a source for the brine/water heat pump.
What advantages does PV*T offer compared to individual PV systems?
Double the energy on one surface – ideal for limited roof or open spaces.
Higher efficiency – active cooling of the PV cells can increase their efficiency.
Cost savings – savings through efficiency advantages in utilisation with brine/water heat pumps, no geothermal probes are required – PV*T is used as a source.
Sustainability – Reduced CO₂ emissions and environmentally friendly energy generation.
Where can PVT Systems be used?
- Single and multi-family houses
- Commercial and industrial buildings
- Hotels, hospitals and public institutions
- Agriculture (e.g. for hot water in stables etc.)
In principle, wherever energy such as electricity and heat is required.
How much space can I save with a PVT system?
PV*T supplies two forms of energy and is combined on one surface, so space savings of up to 50 % can be achieved compared to separate PV and solar thermal systems. However, the requirements must be checked in each individual case, as roofs can vary.
We or a specialised planner will be happy to carry out a professional design.
Can I reduce my heating costs with a PVT system?
Yes, the operating costs of the brine/water heat pump over its service life are significantly reduced, even if a brine/water heat pump means a higher initial investment, the running operating costs are significantly lower compared to other heat pump systems and the service life is also significantly increased as a result.
Does PV*T also work in winter?
Yes, PVT collectors also utilise diffuse light and generate electricity from it. In addition, the PVT collector is used as a heat source in combination with a brine/water heat pump and provides sufficient energy through the *T component with a large heat exchanger surface, which is then converted into heat.
Can PV*T be combined with a heat pump? Which heat pumps are best suited for combination with PV*T?
Yes, PV*T can be as a heat source for a brine/water heat pump, which increases the efficiency of the heat pump in the winter months and the electricity for operation can also be used to support self-consumption.
The combination of PV*T collectors works with brine/water heat pumps – the carrier medium, “the brine”, is the link between the PV*T collectors and the heat pump, the energy supplier.
How long is the lifetime of a PVT system?
The service life is generally 25+ years for the PV component and 20+ years for the thermal unit, depending on professional maintenance.
How time-consuming is the installation?
Installation is similar to a PV system, but requires an additional connection to the source circuit. PV*T systems save space and reduce installation costs compared to separate systems.
Can PV*T replace conventional geothermal probes such as boreholes?
PVT collectors are used for precisely this application. There is no need for expensive geothermal probes, or the high drilling costs are saved.
If you already have existing geothermal probes, you can regenerate them with the PVT collectors and thus extend the service life of the geothermal probe.
Does the PVT system also work in snow or ice?
The PVT collectors extract the heat from the air behind the PV modules and can therefore also supply heat when it is snowing.
Icing of the heat exchanger is normal at low temperatures and changes during operation. The special brine liquid always provides different temperatures so that defrosting is not necessary.
What are the maintenance requirements for PVT collectors or PVT systems?
PVT collectors / PVT systems are generally very low-maintenance. It is recommended to carry out an annual inspection of the brine as well as a visual check of the collectors or the system and the pipework. It should be checked for loose parts. The system should also be cleaned of any dirt such as accumulated leaves etc.
Which heat transfer medium (brine) can be used in an installation?
A special heat transfer medium is used in the installation for the brine heat pump with a PV*T system. The so-called brine, which can cool down to -20°C depending on the heat pump, must also have sufficient technical properties, such as low viscosity, etc., here. Therefore, only the agent approved by us is authorised for use.
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