CEA identifies major safety concerns in 97% of audited rooftop PV systems
Clean Energy Associates (CEA) has performed a safety audit on more than 600 rooftop PV systems and has found that 97% of installations have major safety concerns. It says that 49% of sites have grounding issues, 47% have damaged modules, and 41% have cross-mated connectors.
Solar to reach ‘unassailable position’ as cheapest electricity source, says DNV
Solar’s levelized cost of electricity will reach $30/MWh in 2050, as global capacity surges, said DNV.
Lunar Energy announces new residential energy storage system
US-based Lunar Energy offers batteries, hybrid inverters, and shutdown devices.
Solar Leaders at Intersolar 2023: ‘It could be a difficult time going forward for solar module makers’
In the second interview of a series held at Intersolar 2023, pv magazine spoke with Karen Tang, Director – Editorial Lead Europe at Singapore-based market research company OPIS, about current price trends in the industry. She said solar panels may soon be bought at an average of $0.185/W but she also revealed that offers under $0.15/W are now becoming more frequent. Furthermore, Tang said prices may continue to drop in the future, with the bottom line being difficult to determine. Much will depend on the actual manufacturing capacity we will see coming online, which may not match the huge number of recent announcements released by module producers.
K2 releases mounting structure for green roofs
K2, a mounting system supplier, showcased a range of new solutions at Intersolar Europe, including a new mounting structure for green rooftops. It allows for portrait and landscape module elevation at 10 degrees and 15 degrees, with maximum module sizes of 2,400 mm x 1,350 mm.
Flywheel mechanical battery with 32 kWh of storage in Australia
Key Energy has installed a three-phase flywheel energy storage system at a residence east of Perth, Western Australia. The 8 kW/32 kWh system was installed over two days in an above-ground enclosure, dramatically cutting the time needed to install the flywheel system.
Main causes of solar performance issues
A new report by HelioVolta shows that 62% of inspected PV projects have critical or major issues.
Fraunhofer ISE develops propane heat pump using only 146 g of refrigerant
Researchers at Germany’s Fraunhofer ISE have developed an optimized heat pump propane refrigeration circuit for single-family homes.
Rooftop PV system design to improve yield under partial shading
Scientists in India have proposed a new concept that improves the yield of rooftop PV systems under partial shading. This concept combines conventional total cross-tied (TCT) techniques with partial power processing converters (PPPCs), using a resonant switched capacitor converter (RSC) and a switch inductor converter (SLC).
Sunova Solar releases 605 W TOPCon solar panel with 22.9% efficiency
Sunova Solar is offering five versions of its new bifacial dual glass solar panels, with power outputs ranging from 585 W to 605 W and efficiencies of 22.1% to 22.9%. They feature 144 n-type monocrystalline TOPCon solar cells.
