The power-generation reliability of DAS Solar products and technologies is covered in the PV Encyclopedia. Today we'll talk about the power-attenuation warranty of the N-Type module. For N-Type and P-Type modules in the same size under identical conditions, the N Type has an attenuation rate of 1% the first year and 0.4% each subsequent year. For the P-Type module, the attenuation rate is 2% the first year and 0.45% each year thereafter. Upon calculation, in the thirtieth year, the two sides of the N-Type and P-Type modules can generate power 87.4% and 84.95%, respectively. According to further calculation results, under the same light conditions the energy gain of the N-Type module is approximately 1.73% higher than that of the P-Type module during the power-generation cycle.