Generate renewable electricity and thermal energy from the same roof area.
Solis PVT collectors are engineered to integrate with ground source, brine-to-water, air source and direct expansion heat pump systems, helping residential, commercial and industrial buildings improve renewable energy utilisation, lower operating costs and support building decarbonisation.
Heat pumps have become one of the fastest-growing renewable heating technologies across Europe. However, their seasonal performance depends heavily on the availability and stability of the heat source.
Solis PVT collectors provide an additional renewable thermal source while simultaneously generating electricity. By combining photovoltaic power generation with low-temperature heat recovery, a single collector can support both the electrical and thermal demands of modern heat pump systems.
Whether you are designing a new installation or upgrading an existing heating system, Solis PVT helps maximise roof utilisation and provides greater flexibility for renewable heating projects.
Suitable for:
Designed for Heat Pump Applications
Compatible with Brine, GSHP & Direct Expansion Systems
Residential • Commercial • Industrial
Engineering Support Available
Heat pumps extract renewable energy from the surrounding environment to provide efficient heating and domestic hot water. By integrating photovoltaic-thermal (PVT) collectors into the system, both renewable electricity and low-temperature thermal energy can be harvested from the same roof area.
Unlike conventional photovoltaic modules, PVT collectors actively recover heat that would otherwise be lost to the atmosphere. This recovered energy can be transferred to a brine loop, ground source circuit or direct expansion system depending on the project design.
The result is a more versatile renewable energy system capable of supporting residential homes, apartment buildings, hotels, hospitals and commercial facilities while making better use of available roof space.
Rather than treating electricity and heat as separate resources, PVT technology combines both into a single integrated collector, allowing designers to optimise overall building energy performance.
Produce clean electricity for heat pump operation and household electrical loads.
Capture low-temperature solar heat that conventional PV panels cannot utilise.
Generate two forms of renewable energy from the same collector surface.
Reduce reliance on fossil fuels while supporting low-carbon building strategies throughout Europe.
A Solis PVT collector combines photovoltaic cells with an integrated thermal absorber located beneath the solar cells.
During operation, sunlight generates electricity through the photovoltaic layer while the absorber simultaneously captures thermal energy.
Instead of allowing excess heat to accumulate inside the collector, the thermal circuit transfers this renewable energy to the heat pump system.
The electricity generated by the collector powers the heat pump and other building electrical loads, while the recovered thermal energy provides a stable renewable heat source for domestic hot water and space heating.
Depending on the application, the recovered energy may be delivered through:
This dual-energy concept enables significantly higher total energy utilisation per square metre compared with conventional photovoltaic installations.
Selecting the right collector is not only about thermal performance or electrical output. Successful renewable heating projects require reliable engineering, system compatibility and long-term technical support.
Solis PVT collectors are designed specifically for heat pump integration, helping installers, consultants and project developers simplify system design while improving renewable energy utilisation.
Rather than offering a generic solar product, Solis PVT focuses on practical engineering solutions that integrate seamlessly with modern renewable heating systems.
Designed specifically for ground source, brine and direct expansion applications.
Produce renewable electricity and renewable heat simultaneously.
Suitable for new buildings, retrofits and commercial renewable heating projects.
Hydraulic schematics, technical datasheets and installation guidance.
Reliable manufacturing solutions for distributors and energy solution providers.
Support from initial system design through project implementation.
Every building has different heating requirements.
Solis PVT collectors can be integrated into several heat pump configurations depending on climate conditions, available heat sources and project objectives.
Select the solution that best matches your application.
Improve geothermal system performance by providing an additional renewable heat source that supports long-term ground temperature balance.
Recover renewable thermal energy through a closed brine loop to improve seasonal renewable heating performance.
Add renewable solar preheating to existing air source heat pump systems without replacing the original equipment.
Transfer renewable thermal energy directly into the refrigerant circuit through compact direct expansion PVT technology.
Upgrade conventional solar thermal installations by generating both electricity and renewable thermal energy from a single collector.
Scalable renewable heating solutions for hotels, hospitals, apartment buildings, schools and industrial hot water applications.
Every building has unique heating, cooling and domestic hot water requirements.
Solis PVT collectors are designed to integrate with a wide range of renewable heating systems, providing both renewable electricity and low-temperature thermal energy for residential, commercial and industrial applications.
Whether your project is a single-family home or a large-scale commercial development, our PVT solutions help maximise roof utilisation while supporting modern heat pump technologies and long-term decarbonisation goals.
Solis PVT collectors provide homeowners with an efficient way to generate renewable electricity while supporting domestic hot water and space heating. By combining photovoltaic power generation with renewable thermal energy, a single collector delivers greater energy utilisation from limited roof space.
Multi-family residential buildings require reliable renewable heating solutions that reduce operating costs while improving energy efficiency. Solis PVT collectors can be integrated with central heat pump systems to support domestic hot water production and shared heating networks.
Hotels consume large quantities of domestic hot water throughout the year. PVT collectors continuously recover renewable thermal energy while simultaneously producing electricity, helping reduce energy costs and supporting sustainable hospitality projects.
Healthcare facilities require reliable heating and domestic hot water twenty-four hours a day.
Solis PVT supports renewable heating strategies while contributing to lower operational energy consumption.
Educational buildings require efficient renewable heating systems that operate throughout changing seasonal conditions.
PVT collectors help improve overall building energy performance while supporting long-term sustainability objectives.
Food production facilities often require stable low-temperature process heat and domestic hot water.
Solis PVT collectors provide renewable thermal energy that complements heat pump systems used in food manufacturing applications.
Breweries require continuous hot water for cleaning, production and sanitation.
Renewable thermal energy recovered by PVT collectors can support sustainable brewing operations while reducing electricity consumption.
Swimming pools require consistent water heating throughout the year.
PVT collectors generate renewable electricity while providing additional thermal energy to improve heating efficiency.
Sports facilities combine high hot water demand with large roof areas, making them ideal applications for PVT collectors and heat pump integration.
Agricultural greenhouses require renewable heating to improve growing conditions while reducing operational energy costs.
PVT collectors support sustainable food production by supplying both electricity and renewable thermal energy.
Factories and industrial facilities increasingly require renewable low-temperature heating as part of their decarbonisation strategies. Solis PVT provides scalable renewable energy solutions suitable for industrial heat pump systems.
Government offices, municipal facilities and public infrastructure projects continue to adopt renewable heating technologies.
PVT collectors help public buildings reduce emissions while supporting long-term sustainability goals.
Our engineering team can help design a customised PVT solution for your specific project.
Solis PVT collectors are designed for integration with a wide variety of renewable heating systems.
Our collectors can be incorporated into closed-loop brine systems, ground source heat pumps, direct expansion configurations and selected air source heat pump preheating applications.
Because every project has unique hydraulic requirements, final system design should always be verified by qualified engineers.
Improve renewable heat collection while supporting long-term ground temperature stability.
Improve renewable heat collection while supporting long-term ground temperature stability.
Harvest low-temperature solar energy through a closed brine circuit.
Enables a more compact thermal transfer path between the collector and the heat pump’s refrigerant circuit.
Suitable for integration with many commonly used European heat pump systems including: NIBE Vaillant Viessmann Bosch Daikin Mitsubishi Electric Stiebel Eltron Panasonic
Disclaimer: Brand names are provided as compatibility references only. Final integration depends on project-specific hydraulic design and system engineering.
Modern buildings require more than simply generating renewable electricity. They require integrated energy systems that maximise overall efficiency, improve renewable heat utilisation and reduce dependence on conventional heating technologies.
Solis PVT collectors are specifically developed for heat pump integration, enabling a single collector to generate electricity while simultaneously recovering useful thermal energy. This dual-energy approach helps engineers optimise system performance and make better use of available roof space.
Unlike conventional photovoltaic modules, which convert only a portion of incoming solar radiation into electricity, Solis PVT collectors utilise the remaining solar energy as a valuable low-temperature heat source.
This makes them particularly suitable for renewable heating applications where electricity and thermal energy are both required throughout the year.
Produce renewable electricity while simultaneously recovering renewable thermal energy from the same collector surface.
Instead of treating solar heat as unwanted waste, Solis PVT converts it into a valuable energy resource for heat pump systems.
Roof space is often one of the most valuable resources in a renewable energy project.
By generating two forms of renewable energy from a single collector, Solis PVT enables significantly greater overall energy utilisation per square metre compared with conventional PV systems.
Solis PVT collectors are engineered specifically for renewable heating applications. Suitable for:
Governments and developers across Europe are accelerating the transition towards low-carbon buildings.
By combining renewable electricity generation with renewable thermal energy, Solis PVT supports sustainable heating strategies that contribute to long-term decarbonisation objectives.
| Feature | PV | PVT |
|---|---|---|
| Electricity | ✓ | ✓ |
| Thermal Energy | ✗ | ✓ |
| Borehole Regeneration | ✗ | ✓ |
| Heat Pump Source Support | ✗ | ✓ |
| Roof Utilization | Medium | High |
Every renewable heating project presents unique engineering challenges.
From residential installations to large commercial developments, Solis PVT collectors have been integrated into a wide range of heat pump applications designed to maximise renewable energy utilisation while reducing operational costs.
Below are several representative project types illustrating how PVT technology can be successfully applied across different sectors.
Application: Brine-to-Water Heat Pump
Project Highlights: Integrated rooftop PVT collectors provide renewable electricity while recovering thermal energy to support the central brine heat pump system serving multiple residential apartments. Benefits:
Application: Direct Expansion Heat Pump
Large-scale PVT collectors supply renewable electricity together with solar thermal energy directly to the DX heat pump system for continuous domestic hot water production. Benefits
Application: Geothermal Heating
Solis PVT collectors continuously recover renewable thermal energy to support long-term ground temperature balance while generating electricity for the heat pump.
Benefits:
A photovoltaic-thermal (PVT) collector combines photovoltaic electricity generation with thermal energy recovery in one integrated collector.
Unlike conventional PV modules, a PVT collector also captures useful solar heat, making it suitable for renewable heating applications.
A PVT heat pump system combines photovoltaic electricity generation and thermal energy collection within a heat pump-related application.
The photovoltaic layer generates electricity while the thermal absorber transfers renewable heat to the heat pump through a brine loop, ground source circuit or direct expansion configuration depending on system design.
Yes. PVT is increasingly explored in applications related to brine loop support and borehole regeneration.
In some applications, additional renewable thermal input may support seasonal geothermal balancing strategies.
PVT can be considered for selected retrofit and existing heating applications.
PVT combines photovoltaic electricity generation and thermal collection within the same collector structure.
Yes. PVT systems are designed to produce both electrical and thermal energy.
PVT is commonly associated with ground source heat pumps, brine systems and solar-assisted renewable heating concepts.
In most residential installations, yes. A PVT array of 10–25 m² delivers sufficient brine energy to serve as the sole heat source for a brine heat pump in a well-insulated home with underfloor heating. Performance is comparable to a 50–80 m borehole for an 8–12 kW system, without drilling cost or site disruption. For larger loads or extremely cold climates, a supplementary ground loop or borehole may be retained alongside the PVT array.
The PVT panels connect to the heat pump’s brine inlet exactly as a ground loop would — via a primary brine circuit carrying propylene-glycol solution, a circulating pump, and an expansion vessel. The heat pump’s internal evaporator extracts thermal energy from the brine. No modification to the heat pump refrigerant circuit is required; only the brine source side changes. Compatible with any brine-to-water heat pump that accepts a standard source loop.
Yes. The rear absorber harvests diffuse radiation, longwave sky radiation, and ambient air heat even without direct sunlight. At ambient temperatures above −10 °C, the absorber supplies brine at −5 °C to +5 °C — within the normal operating range of a brine heat pump evaporator. Thermal output is lower than summer peak, but this is exactly when heat demand is highest and the heat pump’s evaporator needs a usable source temperature. PV output is reduced under cloud but thermal yield remains meaningful.
PVT brine panels are compatible with any brine-to-water (water-source) heat pump that accepts a glycol brine source circuit — the same hydraulic interface as a standard ground loop or lake collector. Specific hydraulic design (flow rate, pipe sizing, brine concentration, expansion vessel) depends on the heat pump model’s technical specification. We supply technical data sheets and brine circuit design guidance to support integration with your chosen heat pump.
European market PVT panels such as DualSun SPRING and Triple Solar PVT use aluminium heat exchangers or finned absorbers optimised for air-brine heat exchange. Our panels use a stainless-steel serpentine absorber with rear insulation — a different absorber geometry with comparable thermal output at the brine circuit level. Both approaches deliver a brine source temperature in the same operating range. We provide thermal output data sheets for direct comparison.
Explore solar PVT collectors designed for heat pump applications, geothermal support and hybrid renewable heating systems.
