Scientists in the Netherlands have sought to understand the reason for unexpected gains in vertical PV systems and found that these installations have a much higher heat transfer coefficient than their horizontally deployed counterparts.

The US Department of Energy’s National Renewable Energy Laboratory (NREL) has identified a low-cost way to produce high-efficiency III-V solar cells with dynamic hydride vapor phase epitaxy (D-HVPE). The synthesis involved a gallium arsenide (GaAs) solar cell with a gallium indium arsenide phosphide emitter layer.

A new study from Clean Energy Associates (CEA) shows that 83% of sites tested as part of a global survey had line cracks, 78% had a soldering anomaly and 76% had complex cracks. The survey involved visual inspections combined with electroluminescence testing across 148 sites in 16 countries.

Panasonic has developed a new central heat pump system for residential space heating and cooling.

The 5 kWh battery solution uses Ecoflow’s PV-coupling technology that reportedly ensures an easy connection to existing solar arrays. The new product features an output voltage range of 150 to 800 V.

The battery packages include a battery, an inverter and a control system. The US manufacturer claims its storage systems have a lifespan of over 10,000 cycles and a depth of discharge of 80%.

A Chinese-US research group has created an up-to-date spatial datase to identify floating PV systems across the globe. The new tool uses Google Earth images, Sentinel satellite imagery, and multiple spectral indices.

Hawaii-based Wavr LLC is developing a wave energy converter that is designed to be scaled up and integrated with other renewable energy technologies. The startup plans to sell a version integrating five 40 W solar panels at $2,300.

China’s Bslbatt says its new batteries feature individual battery modules with voltages of 102.4 V and a capacity of 52 Ah. They can be stacked in series with two to seven battery modules.

A group of scientists in the United States saw ‘encouraging’ results after testing the commercialization of novel coating materials in field tests, with the coating only increasing a panel’s total cost by 1.4%.