Manufacturing

What are the components of a DualSun SPRING panel?
The DualSun SPRING panel consists of several distinct layers of materials, which can be divided into 2 categories: The photovoltaic laminate , which i...
Where can I find the specifications of my Dualsun panel ?
On the back on the panel you can find a sticker where you can ready the model of the panel the quote from your installer The study on your MyDS accoun...
What is a bifacial module? What performance gains does it allow?
In the case of biglass solar panels with bifacial cells as the FLASH 425 Half-Cut Glass-Glass TOPCon , energy production takes place on both sides ...
What material is used for the SPRING panel heat exchanger?
It is important to distinguish between our two generations of SPRING currently available: The SPRING3 , with its polymer exchanger, sold from July 20...
What is the lifespan of DualSun panels?
DualSun solar panels are guaranteed to provide approximately 85% of their nominal photovoltaic power after 25 to 35 years of operation ( depending on ...
What is the glass thickness for SPRING and FLASH panels ?
The FLASH 405 Half-Cut White and FLASH 410 Half-Cut White have a 2.8 mm glass thickness. Our glass-glass panels have a 2+2mm glass thickness. The o...
What tests are performed on DualSun SPRING panels at the end of production
In addition to IEC 61215 and 61730 and Solar Keymark certification tests , each DualSun solar panel is individually tested at the end of the produc...
What insulation material is used for the DualSun Spring panel?
The DualSun Spring panels have an insulation layer on the backside of the panel composed of 21 mm of expanded polystyrene (EPS), pressed against the h...
Have accelerated aging tests been conducted with the Dualsun SPRING panel?
We performed accelerated aging tests under pressure on the Dualsun SPRING panel at the TÜV Rheinland in Cologne, Germany with the following temperatur...
What is the heavy metal content of Dualsun panels?
First of all an important point of reminder: Our panels are not affected by rare earths . A solar panel is a laminated assembly of several component...
What is the impact of glycol on the environment?
When our hybrid solar panels are coupled with a solar water heater, the heat exchanger is filled with water (60%) and antifreeze (40%). This antifree...
Are inverters and microinverters recyclable?
It is likely that inverters and microinverters are recyclable, however, like all electronic elements, they are not necessarily 100% recyclable. In ord...
What do the terms "unglazed" and "WISC" mean on DualSun's Solar Keymark certificates?
The terms “unglazed” and “WISC” are related to the glazing on the front of the solar panels. WISC : Wind and Infrared Solar Collector has the sale me...
What tests are carried out on the DualSun solar station?
100% of our solar stations undergo a pressurized leak test at the factory. These tests make it possible to detect leaks in components such as the glas...
Can Dualsun panels be used only for photovoltaics (without fluid inside)?
Yes , our Dualsun Spring hybrid panels can be used only for photovoltaic electricity generation without using water heating.   This is the case, for e...
What is the electrical protection class of the DualSun SPRING and FLASH panels?
The DualSun SPRING and FLASH solar panels are equipped with a level 2 electrical protection class, which provides adequate protection against electric...
What insulator is used with the Wave panel? What is its lifespan?
DualSun Wave panels can be insulated (optionally) with a 30 mm thick closed-cell polyethylene foam (a CFC- and HCFC-free product, in monoextruded and ...
What is the design of the Wave heat exchanger?
The Wave exchanger is composed of two 0,6 mm thick stainless steel plates welded together using an array of stamped pads which ensure a double functio...
Do Dualsun panels have anti-reflective glass and what is their luminance?
It is important to distinguish two types of photovoltaic panels: “Standard” panels  Low luminance panels   All panels in the FLASH range are made up o...
Is there a risk of corrosion of the SPRING4 exchanger?
At Dualsun , we understand the importance of the durability and reliability of our solar panels. SPRING4, our hybrid solar panel, is specially designe...