ENERGY YIELD ESTIMATION MEASUREMENT METHODOLOGY FOR SOLAR CELLS AND MODULES

摘要

A method for evaluating the energy yield of a solar energy generation unit is proposed. Operating conditions at a geographic location are measured at intervals, and the measured operating conditions are used to formulate representative measurement conditions, including a representative spectrum, an intensity and a representative temperature. These representative measurement conditions are simulated using an I-V tester including a solar simulator which is capable of generating a tuneable spectrum, such as an LED-based solar simulator. The energy generation of the solar energy generation unit is measured under these conditions. The energy yield of the solar energy generation unit during a year is obtained by combining the measured energy yields of all representative measurement conditions, weighted by an occurrence value indicating the duration during the year of conditions approximating the respective representative measurement condition.