In 2025, China's installed capacity of photovoltaic power generation exceeded 1.2 billion kilowatts, with a year-on-year growth of 35%. High-efficiency battery technologies such as perovskite, TOPCon, and HJT are accelerating their iterations. "Cost reduction and efficiency improvement" has become the core proposition of the photovoltaic industry. Throughout the entire chain of battery research and component production, the steady-state solar simulator, as a "precise detection tool that simulates natural sunlight", its spectral matching degree, irradiation uniformity, and test stability directly determine the accuracy of core parameters such as battery conversion efficiency and fill factor. It is the key equipment to solve the industry's "uncertain measurement, slow measurement speed, and difficult adaptation" problems.
Beijing Saifan Optoelectronics, which has been deeply engaged in the field of photovoltaic detection for 22 years, relying on 33 core patents and accumulated photovoltaic detection technology, has launched the SS-7000 series of steady-state solar simulators. With the core advantages of "super 3A + level performance, full-scenario compatibility, and software and hardware collaboration", it has passed the highest international standard IEC 60904-9 certification and become the preferred "sunlight simulation expert" for global photovoltaic enterprises and research institutions, injecting precise detection power into the high-quality development of the photovoltaic industry.
1. Technological Innovation: Defining the New Heights of Steady-State Solar Simulator Performance
Saifan's SS-7000 series focuses on "extremely precise and stable efficient" performance, breaking through three major industry technical bottlenecks, and creating the "performance ceiling" of photovoltaic detection:
Super 3A + level optical performance, measurement uncertainty ≤ 1.5%
Using imported 3000W short arc xenon lamps, it accurately replicates the AM1.5G standard solar spectrum (300-1100nm full spectral range coverage), with a color temperature of 6000K close to natural sunlight (5500K), and light intensity stable at 1366 W/m² standard solar constant. Through dual-side synchronous lighting technology and multi-channel uniform light components, the uniformity within the irradiation area of Φ200mm is ≤ 2%, with the center area better than 1.8%, and the spectral matching degree, irradiation stability, and spatial uniformity all reach the highest level of IEC 60904-9 A+A+A +, with the measurement uncertainty reduced by 10% compared to the industry average (≤ 1.5%), far exceeding the optimal value of 1.7% for similar products.
Smart adaptation + long-term stability, compatible with all types of photovoltaic devices
Supporting 0.1-1.2S0 adjustable light intensity, it can precisely match the testing requirements of various high-efficiency batteries/components such as perovskite, TOPCon, HJT, and double-sided double glass; equipped with intelligent temperature control and air cooling cooling systems, with an irradiation stability of ≤ ±0.5%/h for continuous operation for 72 hours, and the lifespan of core components (xenon lamp, optical filter) exceeds 8000 hours, solving the pain points of traditional equipment "light intensity drift and frequent lamp replacement". For special scenarios such as curved vehicle-mounted photovoltaic glass, an "three-dimensional space irradiation compensation algorithm" has been innovatively developed to solve the measurement problems of inaccurate positioning and interference from reflection of curved components, filling the industry gap.
Software and hardware collaboration, improving testing efficiency by 50%
Deep integration with Saifan SpectraSmart spectral analysis software, achieving "light intensity calibration - IV scanning - data processing - report generation" full-process automation. It includes 100 + photovoltaic testing standard templates, supports one-click calculation of 15 core parameters such as short-circuit current, open-circuit voltage, and conversion efficiency, completing data preprocessing and peak analysis within milliseconds; supports seamless connection with MES systems, can be linked with digital source meters and sample tables for multi-channel synchronous testing, reducing the single batch component testing time from traditional 20 minutes to 8 minutes, with an efficiency increase of over 50%. II. Scene Empowerment: Full Coverage from Research Frontiers to Industrial Production Lines
Relying on its strong adaptability and precision, the SAVEN SS-7000 series has deeply served the entire photovoltaic industry chain, becoming a "research accelerator" and a "quality guardian":
Efficient Battery Research: Helping to Break Through Efficiency Limits
Provided trial line testing solutions for leading enterprises such as Ningde Time and Longi Green Energy, through dynamic light regulation and transient data capture, accurately measuring the conversion efficiency and stability of the batteries, helping their new perovskite batteries approach the world's highest record; Tsinghua University and the Photovoltaic Center of the Chinese Academy of Sciences used it to conduct research on the photoluminescence decay mechanism of HJT batteries, with a measurement uncertainty of ≤ 1.5%, providing reliable data support for material optimization, and reducing the experimental cycle by 30%.
Component Production Quality Control: Building a Quality Defense Line at the Factory Exit
The photovoltaic component factory of BYD used the SS-7000 series to build a fully automated testing line, conducting 100% online IV tests on N-type high-efficiency components, automatically identifying abnormal fill factors, cracks, etc., increasing the factory qualification rate of components to 99.97%, and reducing the annual loss of defective products by over 10 million yuan; for double-sided components, through dual-side synchronous lighting technology, completing the performance tests of both sides at once, avoiding secondary clamping errors, and increasing the detection efficiency by 40%.
Cross-border Innovative Applications: Expanding the Boundaries of Photovoltaic Testing
Provided a testing solution for automotive photovoltaic glass for Fuyao Group, through a three-dimensional space irradiation compensation algorithm, accurately evaluating the power generation performance of curved components, helping to implement "mobile charging station" style photovoltaic vehicles; In the aerospace field, customized a solar sensor calibration system for the Chinese Academy of Sciences Space Center, achieving 32′ collimation angle solar simulation, with irradiation stability ≤ ±2%/h, ensuring the angle measurement accuracy of the solar sensor of the spacecraft meets the standards.
III. Brand Endorsement: 22 Years of Accumulation, Establishing a Trustworthy Benchmark in Photovoltaic Testing
SAVEN Optics builds core competitiveness with "technological innovation + quality assurance", becoming a domestic benchmark in steady-state solar simulators:
Technical Hard Power: Standard Setters and Domestic Replacement Pioneers
Cumulatively obtained 33 photovoltaic testing-related patents, participated in the formulation of multiple industry standards such as the "Calcium Titanate Solar Cell Conversion Efficiency Evaluation Procedure", with technical levels reaching international leadership; Products passed ISO9001 quality system certification and CNAS laboratory accreditation, core parameters were calibrated by the National Photovoltaic Metrology Station, breaking the monopoly of European and American brands in high-end steady-state solar simulators, and the domestic substitution rate has continuously increased.
Global Service Network: Timely Response, Uninterrupted Guarantee
Relying on the Beijing R&D Center and the Dubai Regional Headquarters, a "7×24 hour multi-language response + 4-hour local service" system was established, with 8 major service outlets across the country, providing 3-year warranty for core components, and supporting on-site calibration and customized development. A customer from a Saudi photovoltaic project feedback: "The SAVEN engineers conducted on-site debugging and optimization, the equipment adapted to the high-temperature desert environment, running continuously for 3 months without failure, and the data consistency far exceeded expectations."
Policy Alignment: Facilitating the Implementation of the Dual Carbon Goals
The product deeply aligns with the "14th Five-Year Plan for Renewable Energy", being included in the Ministry of Industry and Information Technology's recommended directory for photovoltaic industry technical equipment, having served over 2,000 global customers, covering photovoltaic manufacturing, research institutions, aerospace and other fields, with a core customer repeat purchase rate of 45%, providing key equipment support for the cost reduction and efficiency improvement and energy transition of the global photovoltaic industry.
Conclusion: With Light as the Ruler, Empowering High-Efficiency Innovation in Photovoltaics From the technical breakthroughs in the laboratory to the quality control on the production line, from traditional photovoltaic modules to innovative scenarios such as perovskite and automotive photovoltaics, the SS-7000 series steady-state solar simulator of Saifan Photovoltaic has, with its core advantages of "precision, stability and efficiency", become the "core measurement tool" for the high-quality development of the photovoltaic industry.
In the global energy transition wave, Saifan Photovoltaic will continue to deeply explore photovoltaic testing technology, promote the upgrade of the steady-state solar simulator to "higher precision, more comprehensive adaptation, and more intelligent", and make every simulated ray of sunlight a "precise key" to empower innovation, helping to achieve the global carbon neutrality goal sooner.
If you need to know the product details, apply for a free sample test or customize a photovoltaic testing solution, you can contact the national service hotline: 010-80885970, or visit the Saifan Photovoltaic website (www.7-s.com.cn), unlock the new experience of photovoltaic testing!
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