The Ultimate Breakthrough in Solar Panel Efficiency: How BC Technology is Transforming the Industry's Future

Why is BC Solar Cell Technology Worth Your Attention?

No Front Busbars = More Power Generation

Validation of the Research Model

As early as 1975, Purdue University in the U.S. proposed a groundbreaking theoretical model: under perfect conditions with no losses, the conversion efficiency of crystalline silicon cells could reach up to 29.56%. According to research, BC technology is the most promising approach to achieving this theoretical limit. This discovery has positioned BC technology as the leading contender for higher efficiency in the photovoltaic sector since its inception.

The Shortcomings of Existing Technologies

Most solar modules on the market today use front busbar designs, where busbars stretch across the surface of the solar cells to conduct current. However, these busbars inevitably block a portion of sunlight, causing 3%-5% of light to be reflected or wasted, directly affecting the module’s photovoltaic conversion efficiency. With growing market demand, improving efficiency has become a challenge that every solar company must address.

BC Technology vs. Traditional Technology: Are you Still Think More Busbars Are Better?

Faced with the limitations of traditional technologies, BC technology offers a revolutionary solution:

No Front Busbars Design

BC technology relocates all busbars to the back of the solar cells, maximizing the surface area exposed to sunlight. This means every ray of light can be fully absorbed, boosting overall power generation.

Improved Solar Panel Conversion Efficiency

By further optimizing the back contact structure, BC technology efficiently converts more light energy into electricity, significantly enhancing conversion efficiency.

The Efficiency Breakthrough Behind the Complex Process

Although BC technology offers significant advantages in efficiency, its manufacturing process is far more complex than traditional solar module designs. This complexity is evident in two key areas:

Dense Busbar Design

Since the busbars need to conduct electricity and be densely arranged, they must avoid short circuits while maintaining contact with the PN junction. This design challenge demands manufacturing conditions with exceptionally high precision.

Complex Backside Design

Shifting all busbars to the back significantly increases the complexity of the module’s rear structure. The design difficulty is comparable to integrated circuit design, requiring the balance of current collection and structural stability.

BC Technology Leads the Future of the Photovoltaic Industry

Given these technical principles, BC modules show tremendous potential for improving conversion efficiency, which explains why major solar companies like LONGi and Aiko solar are heavily investing in BC technology. Over the past year, LONGi has repeatedly emphasized that BC is a platform technology. By employing this technology, the solar cell surface can be fully exposed to light, further increasing conversion efficiency.

So, when someone mentions "BC platform technology" in the future, will it still sound unfamiliar to you? The core of this technology lies in the front busbar-free design, which reduces light blockage, thus achieving higher power generation efficiency. In comparison, will you still care about traditional BB technologies (such as 12BB, 16BB, or even 20BB)?

But why is BC Technology More Expensive?

The advantages of BC technology are clear, but its complex manufacturing process also raises costs. Our next topic will delve deeper into why BC modules are more expensive than other technologies and whether solar modules can eventually reach an efficiency of 50%.

Founded in 2013, Moge is dedicated to providing customers with efficient and reliable photovoltaic solutions. As an authorized distributor of multiple Tier 1 photovoltaic brands, Moge is at the forefront of technological innovation, helping drive the global energy transition.