The module’s rated power is obtained under standard test conditions. Under standard conditions, the cell temperature is 25°C. However, when the module is working outdoors, the temperature of the cell module will be far more than 25°C. Under the nominal working conditions closer to actual conditions, the cell temperature can reach up to 42℃. The temperature coefficients of the N-type and P-type modules are -0.30%/℃ and -0.35%/℃, respectively. The temperature difference of cell module between nominal conditions and actual outdoor working conditions can be up to 17℃. Through calculation, the power-generation losses of the N-type and P-type modules are as follows: 17℃*0.30%/℃ = 5.1% and 17℃*0.35%/℃ = 5.95%. Thus, we know that 5.95% - 5.1% = 0.85%. Under nominal conditions, the energy gain of the N-Type module is approximately 0.85% higher than that of the P-type module.