Our PVT Projects

GSHP

PVT for Ground Source Heat Pumps

PVT collector installations configured for ground source heat pump systems, providing seasonal borehole thermal regeneration to support long-term GSHP performance. Projects range from compact residential rooftop arrays to ground-mounted configurations.
10-panel PVT collector array installed on a UK residential rooftop, configured for ground source heat pump borehole regeneration

UK Residential — 10-Panel GSHP Integration
A 10-panel Solis-PVT brine-loop installation on a residential rooftop in the United Kingdom, configured to support a ground source heat pump system through seasonal borehole regeneration. Installed by Better Planet, a certified UK renewable energy installer.

30-panel PVT collector array on a residential rooftop, integrated with a ground source heat pump system

Residential Rooftop — 30-Panel GSHP Array
A 30-panel rooftop PVT installation connected to a ground source heat pump system. The array provides seasonal thermal input to the borehole loop, supporting heat pump performance during the heating season.

12-panel ground-mounted PVT collector array integrated with a geothermal heat pump system

Ground-Mounted Array — 12-Panel GSHP System
A 12-panel ground-mounted PVT installation integrated with a geothermal heat pump system. Ground mounting offers an alternative where rooftop space is limited or unsuitable, with the collector array configured to supply the heat pump’s brine-side source circuit.

Brine-to-Water

PVT for Brine-to-Water Heat Pump

PVT collectors serving as the primary brine-side heat source for brine-to-water heat pump systems, without requiring borehole infrastructure. Installations cover rooftop configurations across residential and commercial-scale properties.
14-panel PVT collector array on a high-rise commercial building rooftop, connected to a brine-to-water heat pump system

Commercial High-Rise — Brine-to-Water System
A PVT hybrid collector installation on the rooftop of a high-rise commercial building, configured as the primary brine-side heat source for a brine-to-water heat pump. This configuration eliminates the need for ground loop drilling, making it suited to urban commercial sites where borehole access is impractical.

2-panel PVT collector array on a residential rooftop, operating as the evaporator source for a brine heat pump system

Compact Residential — 2-Panel PVT Evaporator
A compact 2-panel PVT installation on a residential rooftop, operating as the evaporator source for a brine heat pump system. This entry-level configuration demonstrates how a minimal panel count can still provide meaningful heat pump source-side support from available roof area.

8-panel PVT collector array on a rooftop, integrated with a brine-to-water heat pump system

Rooftop Installation — 8-Panel Brine-to-Water Integration
An 8-panel rooftop PVT array connected to a brine-to-water heat pump system, providing combined electricity generation and brine-side thermal support. A typical mid-scale residential or light commercial configuration for properties without borehole access.

ASHP Retrofit

PVT for ASHP Retrofit

PVT collectors retrofitted onto existing air source heat pump systems as a preheating stage, reducing compressor workload without replacing the existing heat pump unit. Projects shown cover rooftop arrays across a range of installation sizes.
16-panel PVT collector array installed on a rooftop as a preheating retrofit for an existing air source heat pump system

ASHP Retrofit — 16-Panel Rooftop Array
A 16-panel rooftop PVT array retrofitted onto an existing air source heat pump installation. The PVT collectors provide a preheating stage that reduces compressor workload during solar-favourable periods, improving seasonal system efficiency without replacing the existing heat pump unit.

36-panel PVT collector array on a residential rooftop configured as a large-scale ASHP preheating retrofit

Large Residential Retrofit — 36-Panel ASHP Upgrade
A 36-panel rooftop PVT installation added to an existing residential air source heat pump system. One of the larger residential ASHP retrofit configurations in our project portfolio, demonstrating the scalability of PVT preheating integration across a standard pitched roof.

24-panel PVT array on a rooftop retrofitted to support an existing air source heat pump system

Mid-Scale Retrofit — 24-Panel ASHP Preheating
A 24-panel rooftop PVT array configured to preheat the source-side input of an existing air source heat pump. The installation reduces the heat pump’s effective energy consumption during daylight hours while generating renewable electricity from the same panel surface.

Direct Expansion

PVT for Direct Expansion Heat Pump Systems

Direct expansion PVT installations where refrigerant circulates directly through the collector absorber, eliminating the intermediate brine loop. Applications range from residential hot water systems to large-scale commercial installations.
144-panel direct expansion PVT array with 12 dual-source heat pumps installed on a hotel rooftop for commercial hot water and heating

Hotel Commercial — 144 Panels, 12 Dual-Source Heat Pumps
A large-scale direct expansion PVT installation at a hotel property, featuring 144 PVT panels connected to 12 dual-source heat pump units. The system supports the building’s commercial-scale hot water and space heating demand, combining photovoltaic electricity generation with refrigerant-based thermal collection across the full rooftop area. 

8-panel direct expansion PVT array on a residential rooftop, used as a solar hot water system

Residential Solar Hot Water — 8-Panel DX System
An 8-panel direct expansion PVT installation on a residential rooftop, configured as a standalone solar hot water system. Refrigerant circulates directly through the collector absorber to heat domestic water without requiring an intermediate brine loop or separate heat pump unit.

24-panel direct expansion PVT array on a rooftop, configured as a solar hot water system

Rooftop Solar Hot Water — 24-Panel DX Array
A 24-panel direct expansion PVT installation on a flat rooftop, producing domestic hot water alongside electricity generation. Suited to residential or light commercial properties with consistent hot water demand and available flat roof area.

Residential Solar Heating

PVT for Residential Solar Heating

Compact PVT collector installations on residential rooftops, generating electricity while producing domestic hot water from the same panel surface. Projects shown include both pitched and flat roof configurations across different climates.
2-panel PVT collector installation on a Central European residential rooftop, generating electricity and domestic hot water

Central European Residential — 2-Panel Solar Hot Water
A compact 2-panel PVT installation on a residential rooftop in Central Europe, generating electricity while producing domestic hot water from the same panel surface. This project demonstrates PVT system performance in a temperate Central European climate, where combined heat and power output from a small roof area can meaningfully offset household energy demand.

10-panel PVT array on a residential pitched rooftop, producing domestic hot water and electricity as a solar thermal replacement

Residential Rooftop — 10-Panel Solar Thermal Replacement
A 10-panel rooftop PVT installation configured as a direct replacement for a conventional solar thermal system. The array produces domestic hot water while simultaneously generating electricity — delivering the thermal output of a standard solar collector alongside photovoltaic generation from the same roof area.

12-panel PVT array on a flat residential rooftop, configured for solar domestic hot water production

Flat Roof Residential — 12-Panel Solar Hot Water System
A 12-panel PVT installation on a flat residential rooftop, showing a common flat-roof mounting configuration for domestic hot water production and electricity generation. Flat-roof installations allow panel orientation to be optimised independently of roof pitch, suited to properties where a pitched roof is unavailable or unsuitable.