Liquid PV/T Collector
High-Efficiency Liquid PV/T: Simultaneous Power & Hot Water
Powered by advanced liquid-based PV/T technology and an integrated EPP (Expanded Polypropylene) backplate. Fluid circulating directly behind the panels actively cools the cells to boost power output, while the high-thermal-insulation, lightweight EPP backplate minimizes heat loss and protects the fluid system from extreme environmental impact.


Aim for self-sufficiency
By combining electricity, hot water, and heating production, MAX enables you to exceed 80% energy self-sufficiency—without even adding a battery.

Increase the value of your home
Replacing an old boiler with MAX can improve your Energy Performance Certificate (DPE) rating by up to three steps. This improvement in energy class can boost your resale value by up to 10% (based on data from French notaries).

No outdoor unit
The solar-thermal heat pump draws its energy via the heat exchanger in the roof-mounted panels. No more noise, no outdoor unit, and no disputes with neighbors.
Our innovation
Generating heat from heat. And even from cold!
A panel that generates power even at night
A Heat Pump System Without an Outdoor Unit
Engineered with direct expansion (DX) refrigerant circulation directly within the panel, the system eliminates the need for a bulky outdoor fan unit. Refrigerant evaporates inside the panel to absorb ambient heat at maximum efficiency, maintaining high thermal output even in freezing conditions down to -15°C.

PVT + Heat Pump Hot - Solar Water System
PVT‑heat pump hybrid system for building space heating via radiant floor
Liquid PV/T Collector
Advanced Fluid Channel Designs with EPP Integration
Our liquid PV/T panels offer three specialized internal flow structures paired with an integrated EPP insulated backplate. Designed to optimize heat absorption, reduce thermal loss, and maximize total solar yield:
Full-Plate Absorption: Maximizes heat contact surface for peak thermal efficiency.
Serpentine / Grid Flow: Optimizes fluid velocity and pressure drop for uniform cooling.
Roll-Bond Heat Exchanger: Ensures ultra-thin, high-efficiency heat transfer across the panel.

Superior Pressure & Thermal Performance
Built with 100% heavy-duty aluminum to ensure high-pressure durability and optimal surface area for high-efficiency heat transfer.
3Mpa
This is the heat exchanger’s pressure resistance, made possible by its 100% aluminum structure.
3.2㎡
This is the heat exchange surface area of a single panel, thanks to the fins.
240 The best environmental performance on the market
By tripling the energy yield per installed square meter and committing to reducing the carbon footprint of its production, we have created—with MAX—the most eco-friendly solar technology available.
30x
Your installation saves, on average, 30 times more CO₂ than was emitted during its construction.
10 g CO₂e / kWh
carbon footprint of a panel, 2 to 3 times lower than the average for panels on the market.
Over 130,000 HKWell installations worldwide

In Norway, This PublicSwimming Pool Is Heated by theSun with the HKWELL Panels
2024
Bergen, Norway
- Panels:224 hybrid
- Power output: 95 kWp

In Germany, This Logistics Warehouse Runs on Solar with the HKWELL Panels
2024
Hamburg, Germany
- Panels: 480 hybrid
- Power output: 210 kWp

In the Netherlands, This Housing Complex Is Powered by the Sun with the HKWELL Panels
2023
Utrecht, Netherlands
- Panels: 650 hybrid
- Power output: 280 kWp


