Wedoany.com Report-Sept. 29, China Datang Corp., through its subsidiary Datang Hainan Energy Development, has launched the world’s first 2,000 V photovoltaic (PV) validation and certification base in Wenchang, Hainan province. The facility, designed to test high-voltage PV systems under tropical coastal conditions, aims to bridge laboratory research with real-world performance in challenging environments characterized by high humidity, temperature, and salt exposure.

Located near the South China Sea, the Wenchang base faces year-round humidity above 80%, average temperatures of 23.9°C, and annual rainfall of 1,721.6 mm, making it ideal for stress-testing PV equipment. The facility focuses on three key objectives: verifying 2,000 V systems by monitoring over 20 variables like power output and cell temperature, comparing their performance against 1,500 V systems to assess cost and efficiency benefits, and developing standardized testing protocols in collaboration with industry partners.

“The Wenchang base is structured to address three core missions: empirical verification of 2,000 V systems, comparative performance assessment, and standardization efforts,” a Datang spokesperson stated. The project collaborates with the China Quality Certification Center, UL Solutions, and other certifiers to ensure reliable data and rigorous methodology. It is integrated with Datang’s adjacent 100 MW agrivoltaic-plus-storage station, enabling real-time operational testing.

The facility tackles challenges such as high-voltage insulation, humidity resistance, and corrosion under harsh conditions. It evaluates the durability of 2,000 V modules and inverters, focusing on encapsulant aging and electrical stability. Additionally, it tests system compatibility with grid infrastructure and explores PV-plus-storage co-control strategies. Environmental chambers simulate extreme conditions, including 60°C heat and 5% NaCl salt fog, while an IoT platform collects minute-level data for predictive maintenance models.

Designated as a national-level demonstration site, the Wenchang base is part of China’s green-tech innovation initiatives and featured in the “New Power System Development Blue Book.” It has secured central budget support and developed initial protocols, such as “Outdoor Validation of 2000 V PV Systems,” to guide industry standards. Datang plans a 100 MW second-phase expansion by 2026 and aims to establish a “Tropical PV International Laboratory” with Southeast Asian partners, positioning Wenchang as a hub for PV research, certification, and technology exports.

This initiative underscores China’s leadership in advancing clean energy technologies, enhancing the reliability and efficiency of high-voltage PV systems for global applications.