How to Select a Solar Simulator & Analysis of Domestic Equipment Advantages

Solar simulators serve as core testing equipment for photovoltaic cell R&D, perovskite iteration, commercial-aerospace solar array inspection, and new-material photo-aging experiments. They replicate standard ground AM1.5G or space AM0 solar irradiance under laboratory conditions, eliminating constraints from weather and day-night cycles to generate repeatable and traceable experimental data. Given the wide variety of available equipment, this article presents a concise guide for scientific selection and analyzes the core strengths of domestic solar simulators from Aijiang Technology.

Aijiang LED steady solar simulator APS-400C

When purchasing a solar simulator, priority shall be given to understanding the three core AAA-grade metrics defined in the IEC 60904-9 standard, which form the performance cornerstone of the equipment. The first metric is spectral match, which measures the degree of overlap between the output spectrum of the simulator and real-world sunlight. Class-A performance requires the energy fraction of each wavelength band to fall within the 0.75-1.25 range. The AM1.5G spectrum is adopted for terrestrial photovoltaic testing, whereas the AM0 spectrum standard applies to aerospace space-based testing. The second metric is spatial non-uniformity of irradiance. Excessive light-intensity variation across the beam spot will cause uneven illumination over different zones of cell samples and distort measured efficiency results. The third metric is temporal instability, which requires minimal light-intensity drift during equipment operation to secure stable datasets for long-duration experiments. A full AAA-grade solar simulator must achieve Class-A rating for all three metrics. Instead of merely trusting promotional labels, buyers should verify available metrological calibration reports to ensure data validity for academic papers and project certification.

Application-specific matching constitutes another critical consideration. Steady-state xenon-lamp simulators are suitable for routine IV testing of silicon-based photovoltaic cells. For perovskite and novel thin-film cells, pulsed transient models are recommended to mitigate measurement errors induced by sample temperature rise. For aerospace solar-cell and solar-array inspection, high-priority requirements include AM0 space-spectrum compatibility and large-area irradiation apertures. R-oriented R&D projects demand spectral tunability, while production-line quality inspection emphasizes automated integration capability. Other practical factors include beam-spot size, irradiance adjustment range, light-source type, post-sales maintenance and delivery lead time. Imported devices deliver competent performance yet suffer from long lead times and high spare-part costs. High-end domestic models have become a preferred alternative for an increasing number of institutions.

Wuhan Aijiang Technology specializes in new-energy testing equipment. Its solar simulator portfolio covers steady-state, transient-pulse and aerospace-grade AM0 series with prominent domestic-manufacturing advantages.

Aijiang ultra-large-format AM0 solar simulator

First, its core performance metrics meet international standards for both terrestrial and aerospace scenarios. With a spectral response ranging from 350 nm to 1800 nm, its equipment achieves AAA-grade performance for both AM1.5G and AM0 spectra. Nanometer-level spectral-splitting technology accurately reconstructs space solar environments for testing gallium-arsenide cells, perovskite tandem cells and large-scale solar arrays. Selected models support extra-large irradiation apertures, enabling complete solar-array testing without segmentation and filling certain domestic gaps in large-aperture aerospace simulators. A closed-loop optical-feedback algorithm compensates for light-source degradation in real time and suppresses irradiance drift to guarantee repeatable experimental outcomes. Transient-series units feature millisecond-scale pulse response to suppress temperature-rise interference for thermally sensitive devices such as perovskites and restore genuine photoelectric response characteristics of devices.

Second, the equipment offers high-flexibility customization. Customization is available for beam-spot dimension, spectral composition and irradiance intensity to satisfy differentiated demands from research laboratories, pilot-scale lines and aerospace institutes. Open communication interfaces facilitate integration with automated test platforms, IV systems and production-line workflows, supporting full-chain applications from new-material R&D to mass-production quality inspection.

Third, complete domestic manufacturing and local-based services are provided. High domestic-component localization lowers procurement costs and shortens delivery cycles compared with imported counterparts. Built upon industry-university-research cooperation, the company serves university-led research as well as real-world commercial-aerospace flight projects, with equipment validated by on-orbit missions. Turn-key services include solution design, installation & commissioning and technical after-sales support. Sufficient spare-part stock delivers faster response compared with overseas brands.

Aijiang's Space Photovoltaic Testing Solution

In summary, solar-simulator procurement should not be price-driven alone. Purchasers shall benchmark against the three AAA-grade criteria and conduct comprehensive evaluation based on terrestrial-photovoltaic or aerospace use cases, sample dimensions, and steady-state versus transient operational requirements. Continuous technological advances have elevated high-end domestic solar simulators. Local manufacturers such as Aijiang Technology deliver reliable domestic testing solutions for photovoltaic new-material and commercial-aerospace industries by balancing precision, customization capacity and after-sales service.