Longi releases wafers for TOPCon, heterojunction, back-contact cell tech
Chinese manufacturer Longi says that its new wafers offer a notable efficiency boost of approximately 0.1% across various cell technologies.
Johnson Controls unveils new residential heat pump series
The new heat pumps use R-454B as a refrigerant and have a size ranging from 2 tons to 5 tons. Their coefficient of performance (COP) ranges between 3.24 and 3.40, according to the manufacturer.
Fuji Electric launches high-power module for large power converters
The Japanese manufacturer said its latest power semiconductor module is based on a compact insulated-gate bipolar transistor (IGBT) and is designed for large capacity industrial power converters voltage of 2,300 V.
Optimization technique to extract unknown PV system parameters from manufacturers’ datasheets
Developed by an international research team, the proposed methodology can reportedly be used with all kinds of solar panels and under different environment conditions. It relies uniquely on the specifications of the modules’ datasheet, temperature and insolation intensity.
The impact of nonuniform soiling on PV system performance
A UK-Saudi research group has investigated the impact of uneven soiling on PV modules and has found that it can lead to enhanced performance losses due to different operational effects at intra-cell level. The academics conducted a series of experiments on a residential rooftop in Muscat, Oman, throughout 2021.
Fortescue opens 2 GW electrolyzer factory
Fortescue has officially opened a 2 GW hydrogen electrolyzer factory in Australia and has followed that by also confirming plans to set up a 50 MW green hydrogen production plant in the state of Queensland.
Vehicle-integrated photovoltaic system for medical support
A spinoff of Germany’s Fraunhofer Gesellschaft has developed a compact vehicle-integrated PV system integrated with medical support equipment to provide off-grid, off-road mobile healthcare in rural communities. The PV modules with integrated energy management system supply all the electricity required for maintaining a cold chain for vaccines, medicines and samples.
Greenfuel Energy releases wall-mounted residential batteries
Greenfuel Energy’s new lithium batteries for residential applications are available in 12.8 V 100 Ah, 25.6 V 100 Ah, and 48 V 100 Ah configurations, with 1 kW to 5 kW of power.
Weekend Read: A battery worth its salt
While lithium ion battery prices are falling again, interest in sodium ion (Na-ion) energy storage has not waned. With a global ramp-up of cell manufacturing capacity under way, it remains unclear whether this promising technology can tip the scales on supply and demand.
Perovskite-perovskite tandem solar cell based on tin-lead top device achieves 28.20% efficiency
Developed by a research group in China, the two-terminal all-perovskite tandem device utilizes a 23.11%-efficient single-junction top cell relying on an optimized Sn-Pb perovskite material. The perovskite-perovskite cell was also able to retain 95.7% of the initial efficiency after being stored in a glovebox for 2,200 h.
