DualSun boosts PVT innovation to support deep building renovation with AEGIR
Upcoming demos will explore PVT integration in efficient building renovation solutions
DualSun, an AEGIR project partner, is developing the next-generation SPRING hybrid PVT panel to deliver a more powerful, efficient, and building-integrated solar solution.
As part of AEGIR, DualSun is boosting the electrical performance of its panels from 190 to 210 Wp/m² by integrating high-performance photovoltaic cells and redesigning the module’s thermal and mechanical components to ensure seamless installation in building envelopes, especially rooftops.
This new generation PVT panel will combine enhanced energy efficiency, reliability, and architectural integration to meet the specific challenges of deep renovation.
Thanks to the support of the AEGIR project, DualSun will deploy two demonstration sites in 2026: one in Boën-sur-Lignon, France, using the PVT-Heat Pump, and another in Oradea, Romania, for residential pool heating. These pilots will validate the system’s contribution to building envelope renovation, its flexibility, and its potential to reduce Europe’s reliance on conventional energy sources.
Next-Generation PVT for Efficient Building-Integrated Technologies
DualSun has developed the next-generation SPRING PVT panel, combining photovoltaic and thermal production in a single, compact solution. This improved version is fully aligned with AEGIR’s goals to deliver more efficient, building-integrated technologies that support deep renovation strategies.
The new SPRING PVT panel is:
- More compact: 30 mm frame instead of 35 mm.
- Lighter: 16.5 kg/m² instead of 17.1 kg/m².
- More resistant: Snow/wind resistance up to 6600 Pa / 3600 Pa (vs. 5400 Pa / 2400 Pa).
- More powerful: 425 Wp instead of 375 Wp.
- More aesthetic: Full black design for better architectural integration.
- More environmentally friendly:
- 60% less lead
- 11% reduction in silicon wafer thickness
- 31% less EVA material used
The SPRING PVT panels are not stand-alone solutions, but smart components fully compatible with AEGIR’s multi-technology renovation packages, enabling synergies with insulation, heat pumps, and smart energy management systems.
Two European demonstration sites for real-life validation
Both sites will demonstrate complete building renovations with measurable energy savings, improved user comfort, and system reliability in real-life conditions.
- Oradea, Romania: Individual house equipped with the SPRING solution for pool heating, providing a simple and cost-effective solar pre-heating application.
- Boën-sur-Lignon, France: Residential building using the SPRING + Heat Pump system to heat the building and domestic hot water all year round.
Through the AEGIR project, DualSun’s innovation contributes to demonstrating the practical feasibility of integrated renovation solutions that can be deployed across Europe to meet ambitious climate and energy targets.
For additional information, you can consult the following pages:
- Technical information on the panels.
- Product presentation at BePositive 2023
