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Evaluating Solar Simulator Accuracy Using the AvaSpec-Solar-Mini+
A crucial component of solar technology is the photovoltaic cells within solar panels, which must be tested for energy conversion efficiency. This is typically achieved using a device known as a solar simulator—a factory tool that replicates sunlight conditions. To ensure a solar simulator’s accuracy, spectroscopic measurements are taken across multiple wavelength bands to evaluate the irradiance output. These measurements are then compared to the Sun’s known irradiance values, with a grading system (from A+ to below C) indicating how closely the simulator matches solar accuracy.
In this experiment, we measured the accuracy of a solar simulator from Sinton Instruments, a local process control company, using our new AvaSpec-Solar-Mini+, an exclusive Americas product that meets IEC 60904-9:2020 standards. Measurements were conducted within the solar simulator (see Figure 1), with accuracy assessments performed using Sinton’s proprietary software. This rigorous testing is key to differentiating between acceptable and exceptional solar simulators, essential for advancing the solar energy industry.