What is n-type bifacial double-glass module

Why do bifacial modules have glass panels?

Manufacturers tend to prefer glass panels on both the front and rear sides of a bifacial module because these designs tend to better transmit light and are more resistant to inclement weather, moisture permeation, corrosion, and more excellent mechanical load ability.

What are bifacial modules?

Bifacial modules are available in many versions. Some are framed and some are frameless. Some are made of double glass and others have transparent pads. Most manufacturers use monocrystalline cells, but polycrystalline designs exist. The only thing that is constant is that power is generated from both sides.

Are bifacial panels a monofacial?

Monofacial modules usually include a solid backsheet which blocks any possibility of light capturing on the rear side. However, with bifacial panels, the back side requires a translucent material that allows sunlight to pass through. Many bifacial panel designs, including Trina Solar’s, use a double glass structure for this purpose.

What is the difference between bifacial panels and HJT?

Generally bifacial panels enables 5%-30% energy gain on the back, depending on the factors such as ground reflection, region type etc. HJT (n-type) demonstrates unique advantages in high temperature/high irradiance areas. Compared to the PERC module, HJT features a lower power temperature coefficient and higher output power.

How long does a glass-glass bifacial module last?

Besides， glass-glass bifacial modules could provide a minimum of 30 years thanks to the better resistance to corrosion, abrasion, extreme weather, shock, and vibration that ensures N-type module safety during production, transport, installation and long-term power generation and prevents new invisible cell cracking

Why are n-type bifacial modules so popular?

Interest in N-type bifacial modules has rapidly increased due to their ability to generate more power than conventional P-type bifacial thanks to their higher bifacial factor, lower degradation, lower temperature coefficient in addition more energy density and power class.