Recently, we have found that in China,P-type photovoltaic modules companies have generally quoted prices below 0.9yuan/W or even approaching 0.8 yuan/W. With the acceleration of productioncapacity clearance, many enterprises have launched N-type production capacity,and the price competition for N-type photovoltaic module is even more intensethan that of P-type. Considering the recent bid opening for the 42GWphotovoltaic modules project of China Electric Power Construction Corporation,since the beginning of this year, the winning prices of photovoltaic modules forlarge state-owned enterprises have continued to decline significantly. Photovoltaicmodules prices below 0.9 yuan/W may become the norm.

So what is the difference between P-typephotovoltaic modules and N-type photovoltaic modules?

The biggest difference between P-typephotovoltaic modules and N-type photovoltaic modules lies in the differences inraw material silicon wafers and battery preparation techniques. In terms of rawmaterials, according to the different doping elements used on silicon wafers,they can be divided into N-type (using phosphorus doped N-type silicon wafersas substrates) and P-type (using boron doped P-type silicon wafers assubstrates)solar  cells. In terms ofpreparation technology, P-type solar solar cells mainly use traditional aluminum back field solar  cells(AI-BSF) and passive emitter and backcell (PERC) technologies. The preparation technology of N-type solar  cells mainly includes tunneling oxide passivecontact cells (TOPCon), intrinsic thin film heterojunction cells (HJT), fullback electrode contact cells (IBC), and passive emitter back surface fulldiffusion cells (N-PERT).

What are the advantages of N-typehigh-efficiency solar  cells?

Compared with P-type single crystal solar  cells, N-type single crystal solar  cells have many advantages:

(1)In terms of double-sided ratio, thehigher the double-sided ratio, the higher the power generation gain on the backof the component

(2) In terms of temperature coefficient,N-type solar  cells have a lowertemperature coefficient than P-type solar cells, are less affected in high-temperature environments, have betterpower generation performance, and are suitable for areas with betterirradiation conditions.

(3) In terms of attenuation, under the samecomprehensive output power, the full life cycle power generation of N-type moduleswill be higher than that of PERC modules, with greater premium space.

(4) In terms of power generationefficiency, the minority carrier lifetime of N-type solar  cells is longer than that of P-type solar  cells, which can greatly improve the opencircuit voltage of solar  cells and bringhigher battery conversion efficiency.

(5) In terms of weak light effect, comparedwith P-type solar  cells, N-type solar  cells have better spectral response underweak light conditions, longer effective working time, and can generateelectricity during weak radiation intensity periods such as morning andevening, cloudy and rainy days, with better economic efficiency.

Multifit Solar has been committed to thephotovoltaic power generation industry for over 15 years, with a professionalteam conducting in-depth research and production of photovoltaic modules. Ithas been exported to over 50 countries overseas and has received unanimouspraise from users. In the future, we hope to provide higher quality products tomore customers.