Over a thousand of solar panel factories operate in China and provide a wide offer of solar panels, not all of them quality being trustworthy.
Nowadays the PV manufacturing market is disrupted by many changes and the quality follow-up is destabilized: quick growth of the demand, rise in transportation price, rising price of cells and glass, brand that manufacture in pop-up factories to balance with the demand, and the quick change in solar cells size are the main reasons of this disruption.
With 5 years of experience in solar energy, Greenwire’s team go in quality control and analyzes new manufacturer every month, it allows us to keep up to date with the latest innovations within the market and to propose you the best of what China can provide.
Greenwire through its experience of quality control over the years, can advise you the best brands found on the market, or advise you high quality factories to manufacture the panels on your own brand. We can advise you a various selection of PV to find the best solution that will suit your project or your distribution quality standards.
GREENWIRE OFFERS YOU A 360° SERVICE
Thanks to our team that is available to advise you for your project, design the layout, ship the goods, and help you for the aftersales service, we make your sourcing as efficient as possible. Greenwire’s team will assist you during the whole process.
Our team is here to answer all your technical questions as well as to prepare you the right materials. Our company’s inspection follows strict IEC standards, and we make sure that every panel is then inspected to meet the specified standards.
Premium solar panels require quality bill of material (BOM) and high-end production machine. Greenwire is here to inspect and validate these two conditions for you to acquire a product conform to the specification sheet.
Original poly and monocrystalline solar cells
The key component of a solar panel is the solar cell, also known as waffer. It’s the component that will define the efficiency of the panel and its durability. The price of a solar panel will mostly be defined by the quality and type of solar cell used. Three type of cells can originally be found on the market: polycrystalline, monocrystalline or Thin film cells.
PERC and Bifacial solar cells
Two different technology of solar panels are now mostly purchased and installed around the world: PERC and Bifacial.
Having the same quality and inherited from the monocrystalline cell technology, they have high efficiency standards. We strongly advise you to choose between one of this two technologies for your projects.
Size of solar panel
Solar panel power and size depends on two factors: the size of the solar cell and the number of cells use.
Solar cells are available in many sizes. Because each cell requires a specialized production line, your supplier can’t manufacture all of them in their own factory. In 60% of the case for 2021, your PV is manufactured in a subcontracted factory. Greenwire offers you PSI quality inspection to be sure that your solar panel has been manufactured in your manufacturer premises.