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.
Bslbatt unveils 100-mm batteries for rooftop solar
China’s Bslbatt says its new batteries have 10.24 kWh of storage capacity and a nominal voltage of 51.2 V. It measures 700 mm x 980 mm and is 100 mm thick.
SMA unveils hybrid inverters for residential applications
SMA’s new one-phase hybrid inverters have efficiency ratings of up to 97.5% and European efficiency ratings of 96.8%. They are available in four versions, with power outputs ranging from 3.6 kW to 6 kW.
Japan’s vast wind and solar resources
To achieve its 2050 carbon neutrality commitment, Japan must eliminate greenhouse gas emissions from fossil fuels, as they comprise nearly all of its emissions. Fortunately, Japan has everything it needs to become energy self-sufficient, in the form of solar, wind, and pumped hydro energy storage.
Virtual power plants roll out across the U.S.
Virtual power plants (VPPs) coordinate distributed resources and demand for a more resilient, cost-effective energy transition. And they are gaining traction in the United States.
