Photovoltaic characteristics

What are the advantages of DualSun FLASH Half-Cut TOPCon panels?
Like HJT and IBC cells, TOPCon technology (Tunnel Oxide Passivated Contact) belongs to the category of so-called type-N cells, which use phosphor...
What are the advantages of dual-glass DualSun modules?
Two types of photovoltaic module structures coexist: Glass-polymer film (also called glass-backsheet) type modules. They are made of glass on the fro...
What are the characteristics of the FLASH 500 Half-Cut Glass-Glass panel?
Yes, our glass-glass panels have not yet been subjected to pressure/depression tests greater than 5400 Pa / 2400 Pa. We can of course expect better re...
What are the photovoltaic specifications of DualSun panel?
Flash-test tolerance indicates the power loss/gain observed under STC conditions (Text =25°C, G=1000W/M²) compared to the advertised power of the pane...
What is the quality control process for DualSun FLASH panels?
In addition to its DualSun SPRING hybrid panel, DualSun offers a range of simple photovoltaic panels, the DualSun FLASH  panels. Thanks to its experi...
What are the different formats of photovoltaic cells?
Monocrystalline photovoltaic cells are made from thin wafers cut from silicon ingots. These ingots being cylindrical in shape, it is necessary to chan...
Can the STC power of DualSun panels be exceeded in real conditions?
Yes it can be exceeded but under fairly specific and therefore rare conditions. The power of the Solar panels is given under STC conditions (Standard...
What is the impulse withstand voltage (Uw) of our FLASH and SPRING modules?
The maximum impulse voltage or impulse withstand voltage of our panels FLASH Half-Cut is 20 000V .   These data are taken from  IEC 61730 certificate...
What is the transparency rate of Half-Cut Glass/Glass DualSun panels?
With a Glass/Glass panel, the backsheet is made of glass.   Unlike the DualSun FLASH Half-Cut White panel which is made of a white backsheet or the...
Why does the efficiency of a solar panel decrease during its lifetime?
Any solar panel sees its efficiency drop during its lifetime.   The value of this performance, after 25 years of use of the panel, is also widely shar...
Is it risky to leave DualSun panels unplugged in direct sunlight?
No it is not risky.   Even if it doesn’t make sense to do it on the long term, there is no problem of leaving a panel unplugged to the electricity ne...
What are the Normal Operating Cell Temperature (NOCT) values for DualSun Panels ?
The photovoltaic characteristics of DualSun panels at low sunlight (NOCT values) are available on the table linked bellow. These are measurements of t...
Are DualSun panels equipped with bypass diodes?
Yes ! Each DualSun panel is composed of cells, which are divided into several strings separated by bypass diodes . The number of strings is differen...
What is the LID and LeTID that would degrade the photovoltaic yield on DualSun panels?
LID refers to the degradation of photovoltaic solar cells induced by prolonged exposure to strong solar radiation. Less known and recognized than LID,...
How are the by-pass diodes positioned in the DualSun Shingle panels?
The cells of the DualSun Shingle 375, 400 and 425 panels are arranged in 10 parallel columns and in 2 groups . The two groups of cells are protected...
Can DualSun panels use thin-film solar cells?
We have explored this possibility but ultimately dismissed it in order to stick with the best-developed photovoltaic technology: monocrystalline silic...
What is the brand of junction box and connectors for the DualSun SPRING and FLASH panels?
DualSun FLASH and SPRING panels use the following junction boxes and connectors.     Junction box Panel  Manufacturer Model FLASH 375 Shingle Black Re...