China

China Railway Construction Corp.’s IT unit has named 10 preliminary winners for its 2025 solar module framework procurement. The 3 GW contract covers n-type monocrystalline bifacial tunnel oxide passivated contact (TOPCon) modules, with delivery required within 170 days of signing.

Researchers have combined the theory of planned behavior, the technology acceptance model, and diffusion of innovations theory to investigate rooftop solar adoption in China. From a 1,200-person survey, they found that subjective norms and social influence from peers and community had a surprisingly more substantial effect than personal attitudes or perceived ease of use.

China is set to break new ground in its energy transition, with 2025 renewable capacity additions projected to exceed 500 GW, driven by surging solar and wind deployment, according to a new report from the State Grid Energy Research Institute.

China’s top industry officials have vowed to curb low-price competition and excess capacity in the solar sector, as authorities begin implementing measures aimed at stabilizing supply chains and rebalancing the market.

Deye has developed a new power conversion system (PCS) optimized for solar integration, with modules ranging from 100 kW to 125 kW. The Chinese manufacturer says the PCS supports flexible system design and targets commercial and industrial (C&I) applications.

WHES has launched a new series of commercial and industrial (C&I) storage systems with integrated hybrid inverters, offering capacities from 57 kWh to 100 kWh and PV input up to 96 kW. The China-based manufacturer claims the systems support 200% PV overloading.

The China Nonferrous Metals Industry Association (CNMIA) says polysilicon prices fell as low as $4.74/kg this week, with only 11 producers currently operating at reduced capacity.

GoodWe has launched a 112 kWh battery storage system for commercial and industrial (C&I) solar projects, featuring 96% round-trip efficiency and a 6,000-cycle lifespan. The system allows parallel connection for up to 450 kWh of total capacity.

China’s solar power capacity has surpassed 1 TW, marking a historic milestone as the country accelerates its energy transition. Around 92 GW of new PV systems were installed in China in May alone, but analysts warn the pace may slow in the second half of the year.

Scientists in China have outlined a mission proposal for the China Academy of Space Technology space solar power (SSP) development program. It includes three solar arrays, microwave power transmission, and laser power transmission. The roadmap predicts this demonstration mission cound be attempted before 2030.