China

Shanghai-listed polysilicon producer Tongwei says it intends to acquire 100% of Qinghai Lihao through a share-and-cash transaction, as consolidation in China’s polysilicon sector increasingly shifts toward mergers and acquisitions.

The Chinese manufacturer said its Aster TB250/TB500 system is compatible with both 40 0V and 800 V PV systems. Parallel connection allows scaling up to 3 MW / 8.46 MWh.

The Chinese manufacturer claims the new efficiency result sets a world record for industrial-scale TOPCon solar cells on M10-size wafers. The achievement was verified by an undisclosed independent third-party organization in China.

The Chinese manufacturer said its new airMono indoor monoblock heat pump is tailored for space‑limited urban retrofits, providing heating, cooling, and domestic hot water without an outdoor unit. The system’s coefficient of performance ranges from 2.5 to 4.1, while the seasonal coefficient of performance spans 4.5 to 4.7.

The inverters offer up to 99.2% efficiency, 200% PV oversizing, dual battery inputs, IP65 protection, and support for installations up to 144 kWh of storage capacity.

A global study finds climate change will sharply increase high-temperature risks, accelerate degradation, and raise costs for rooftop PV, with economically disadvantaged regions hit hardest. Researchers warn current IEC standards underestimate future risks, urging urgent updates to avoid stranded assets and rising electricity costs.

The new compressor is described as the world’s most powerful single-unit compressed air energy storage (CAES) system, with a maximum discharge pressure of 10.1 MPa and an efficiency of 88.1%.

pv magazine spoke with Fan Bin, founder of GCL Optoelectronics, about how high-throughput experimentation and AI-driven optimization are accelerating perovskite development, and why stability, and not efficiency, remains the key challenge on the path to mass production

Rising silver prices are putting pressure on solar manufacturers, prompting greater focus on copper and other alternatives to reduce costs. Heraeus says it expects silver demand from photovoltaics to decline this year despite stable global installations.

An international research team has reviewed emerging solid-state and gas-cycle heat pumps capable of reaching temperatures of up to 1,600 K, assessing their challenges, applications, scalability, and technology readiness levels. The researchers say these systems could outperform conventional high-temperature heating technologies by achieving coefficients of performance above 1.