‘The battery market is far from saturated’
Cornex Chairman Dai Deming discusses battery prices and R&D prospects in an exclusive interview with pv magazine. He says the company’s effective production capacity exceeded 110 GWh in the first quarter of 2025, ranking second in the lithium-ion battery industry.
The best tilt angle to improve PV system performance on low-cost buildings
Researchers have demonstrated that the theoretical optimal tilt for rooftop solar energy production in low-cost buildings in Nigeria is approximately 5.67°. Their modeling suggests to adopt south-facing roofs for PV generation in the Global South.
Swedish startup testing silicon anode battery material
Sweden-based Green14, a plasma silicon startup, said its silicon-based anode material is being tested by the battery group at RISE, Sweden’s national research organization.
SERIS achieves world record efficiency of 26.7% for perovskite-organic tandem solar cell
The tandem device is based on a bottom organic cell that can achieve a remarkable power conversion efficiency of 17.9% and a high short-circuit current density of 28.60 mA cm2. Furthermore, it uses a top perovskite solar cell with an open-circuit voltage of 1.37 V and a fill factor of 85.5%.
EU adopts state aid framework for cleantech industry
The European Commission has developed a new state aid framework under the Clean Industrial Solutions Act for Europe (CISAF) to support clean technology manufacturing across the European Union.
Q Energy switches on Europe’s largest floating PV plant
Q Energy and partners recently inaugurated a 74.3 MW floating PV plant in France – the largest of its kind in Europe. pv magazine visited the site to examine the technologies and innovations behind the project.
WHES releases new C&I storage system series
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.
JinkoSolar achieves world record efficiency of 27.02% for TOPCon solar cell
The Chinese manufacturer said the result was certified by China’s National Photovoltaic Industry Measurement and Testing Center (NPVM).
Researchers demonstrate technical feasibility of retrofitting PV-driven heat pumps in multi-family buildings
A research group led by Germany’s Fraunhofer ISE has conducted what it describes as the first empirical study on PV-assisted two-stage HP systems in existing multi-family buildings. Its findings show that substantial PV electricity exports result in greater avoided non-renewable primary energy use.
New research sheds light on voltage deficit in selenium solar cells
An international research team has investigated the impact of intrinsic point defects in selenium solar cells and has concluded that these defects are not responsible for voltage deficit. The scientists rather believe interfaces and extended defects may be the cause of this well-known issue for this kind of PV device.
