The availability of natural resources on Earth is limited, and regardless of whether fossil fuels like petroleum are running out or not, it's essential for us to conserve energy and invest in renewable sources. Idexx has introduced a high-speed, high-performance photovoltaic/solar power supply system that represents a major breakthrough in the new energy sector. This solution not only enables precise simulation of high-performance solar panel output but also provides comprehensive testing for solar inverters, photovoltaic controllers, and microgrid devices.
China’s photovoltaic (PV) industry faced significant challenges due to EU anti-dumping measures, but it has since experienced a strong recovery driven by growing domestic PV installations. By the end of 2016, global cumulative PV installation reached 305 GW, with China’s grid-connected PV capacity reaching 77 GW. As a result, China now leads the world in both new and cumulative PV installations, making its domestic market the largest in the industry. Companies like Jinko and Huawei have become global leaders in the production and shipment of key components such as PV modules and inverters.
According to China’s commitment at the Paris Climate Summit, the country aims to reduce carbon dioxide emissions per unit of GDP by 60%–65% compared to 2005 levels by 2030, while increasing the share of non-fossil energy in primary energy consumption to around 20%. As a crucial component of this transition, photovoltaics plays a vital role in achieving these goals through three key strategies: distributed systems, front-runner programs, and subsidies.
Distributed systems are becoming increasingly important, especially in regions where solar potential is high but electricity demand is concentrated elsewhere. By building solar power stations near load centers, distributed photovoltaics help address the issue of "can't send and can't use" that often occurs with large-scale solar farms. These systems are often used for self-consumption and surplus power injection, and they are particularly effective in rural areas for poverty alleviation projects. The scale of these systems varies depending on the load and available space, ranging from a few kilowatts for homes to several megawatts for industrial applications.
Leading initiatives, such as the "Photovoltaic Runners Program," encourage technological upgrades and enhance product competitiveness. A portion of China’s annual PV construction targets is allocated to projects that meet specific efficiency standards, pushing manufacturers to innovate. The maximum power point tracking (MPPT) algorithm in PV inverters is a core technology that determines system performance.
As the industry moves toward a post-subsidy era, cost reduction and efficiency improvement become critical. Although initial costs for photovoltaic systems are higher than traditional energy sources, advancements in module and inverter efficiency have significantly improved profitability. This shift is driving the industry toward quality and efficiency over pure scale, leading to greater market recognition and long-term sustainability.
Idexx’s latest high-speed, high-performance photovoltaic/solar power supply, combined with the SAS1000 solar battery matrix simulation software, offers accurate IV curve simulation up to 1000V and power ranges from 1.8kW to 100kW, making it ideal for testing string inverters and microgrid systems. The system supports real-time simulation of solar panel outputs under varying temperature and light conditions, including shadow effects, allowing for accurate testing of MPPT efficiency.
SAS1000 includes built-in models for international standards such as EN50530, Sandia, NB/T32004, CGC/GF004, and CGC/GF035, enabling users to test static and dynamic MPPT performance and generate compliance reports. It also allows direct import of IV curves with up to 4096 points for more complex testing scenarios.
The IT6500C DC power supply features an ultra-wide voltage and current range, with flexible control modes and advanced protection features such as OVP, OCP, OPP, and reverse polarity protection. It can test inverter parameters like MPP voltage, starting voltage, and input limits, and when paired with the IT9100 power analyzer, it helps measure inverter efficiency accurately.
This high-speed, high-performance photovoltaic power supply system is widely used in solar cell simulation, inverter testing, microgrid development, and other related fields, offering a reliable and efficient solution for new energy research and development.
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