Solar in Regina, Saskatchewan - Busy Sept. With Bi-Facial Modules!

September 18, 2018

Sept. has been a busy month, below is an example of system we installed for our rural customer(s) utilizing the power of LG Bi-Facial technology. Contact us and take advantage for the 20% SaskPower rebate. 

 

 What is Bi-Facial Technology?

 

"It used to be an insult to be “two-faced”, and now it’s a sign of being on top of technology trends. We wrote recently about the explosion in solar panel efficiency, and with bi-facial panels, that efficiency can be boosted another 20+%. and up to another 20+% with our One Axis Ground Mounted system.


Traditional solar panels cover the back surface with reflective aluminum, to allow the cells to capture as much light as possible. These cells are only active on the top side, and any light which shines on the rear of the panel is lost. Polycrystalline silicon is the technology which has enabled cost to decrease in recent years.

The cells in a bifacial panel are active on both sides.

 

To enable light to reach the rear, the traditional opaque backing is replaced with a finger grid. The cells themselves, are made from a higher grade monocrystalline silicon, which has a higher energy conversion rate. But, before you look at this as a step backwards, polycrystalline bifacial cells are already hitting the market, to strike that balance between cost and efficiency.

 

What makes it work?
Albedo. That’s the term which characterizes how reflective a surface is. The reason is that the back side of the module is really only getting reflected light – as a correctly oriented panel will be pointed towards the sun. So if the surface reflecting light to your panel is dark, you won’t see an appreciable difference. If you are on sand, instead of grass, you can see as much as a 20% increase in energy production. Painting the mounting surface reflective white is an easy boost. And for a country which occasionally gets snow – even if the front is covered, the rear can benefit from all that lovely reflective snow.

 

Proof that bifacial solar panels isn’t just a flash in the pan, can be seen by the number – and quality – of manufacturers with bifacials currently in production: BYD, Hanwa, LG, LONGi, Megacell, Panasonic, Sanyo, Silfab, Sunpreme and Yingli.

 

There’s no doubt that bifacials cause a re-think to traditional design and engineering of solar systems. By some estimates, equivalent energy production could cover a footprint less than half of what it takes today."

 

 

 

 

 

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