The resources available to humanity are limited, and regardless of whether fossil fuels like petroleum will eventually run out, it is essential for us to conserve and actively develop renewable energy 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 system not only enables accurate 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 anti-dumping measures from the EU, but it has since rebounded with strong domestic demand. By the end of 2016, global cumulative PV installations reached 305 GW, while China’s grid-connected PV capacity surpassed 77 GW. As the world leader in both new and cumulative PV installations, China has become the largest market for the PV industry. Leading companies like Jinko and Huawei have also taken top positions globally in terms of shipments of key components such as PV modules and inverters.
As part of its commitments at the Paris Climate Summit, China pledged to reduce carbon dioxide emissions per unit of GDP by 60–65% compared to 2005 levels by 2030, and increase non-fossil energy to around 20% of primary energy consumption. As a critical component of this transition, photovoltaics plays a vital role, with key factors driving its development being "distributed systems," "front-runners," and "subsidies."
Distributed systems are increasingly important, especially in regions where solar resources are abundant but power demand is concentrated elsewhere. To address the issue of “can't send and can't use,†distributed photovoltaics—designed for local consumption and surplus power injection—has emerged as an effective solution. These systems are often deployed near load centers, making them ideal for applications like rural poverty alleviation. The scale varies from small home systems (a few kilowatts) to large commercial and industrial setups (tens of kilowatts to several megawatts). Due to complex installation conditions, string inverters are commonly used to maximize efficiency.
"Front-runners" refer to government-led programs aimed at promoting technological upgrades and enhancing product competitiveness. A portion of China’s annual PV construction targets is allocated to these programs, encouraging manufacturers to meet strict efficiency standards. This has driven innovation, particularly in core technologies like maximum power point tracking (MPPT) algorithms in PV inverters.
With the gradual reduction of subsidies, the industry is shifting focus toward cost reduction and efficiency improvements. As PV module and inverter efficiency improves and costs decline, the economic viability of solar power is increasing. This trend is pushing the industry toward a more sustainable model, where quality and performance take precedence over mere scale.
In the post-subsidy era, technological advancement is crucial for expanding PV applications. Idexx’s latest high-speed, high-performance photovoltaic/solar power supply system, featuring the IT6500C DC power supply and SAS1000 solar battery matrix simulation software, offers precise IV curve simulation up to 1000V and power ranges from 1.8kW to 100kW. It is especially suitable for testing string inverters and microgrid systems.
The SAS1000 software simulates real-world solar panel performance under varying temperature and light conditions, including shadow effects. This allows for accurate testing of MPPT efficiency in PV inverters. The system supports the development and testing of smart meters, photovoltaic controllers, and microgrid control centers, serving as a key tool for new energy research.
Built-in models such as EN50530, Sandia, NB/T32004, CGC/GF004, and CGC/GF035 enable users to simulate IV curves and test both static and dynamic MPPT performance. Compliance reports can be generated for European, California, and Chinese efficiency standards, simplifying standardized testing for inverter manufacturers.
The IT6500C power supply features an ultra-wide voltage and current range, with flexible settings for edge time and CC/CV priority modes. It ensures fast and stable transitions without overshoot, along with multiple protection features like OVP, OCP, and OPP. It can also test inverter parameters such as MPP voltage range, starting voltage, and DC protection capabilities. When paired with the IT9100 power analyzer, it provides detailed efficiency data.
Itech’s high-speed, high-performance photovoltaic/solar power supply combines advanced DC power supplies with professional solar simulation software, enabling optimal performance in PV system testing. It is widely used in solar cell simulation, inverter testing, and microgrid development, supporting the future growth of clean energy solutions.
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