Emiliano Bellini
Debunking myths about PV system orientation, dimensioning
New research from Lappeenranta University of Technology shows that there is no single correct orientation for a PV installation.
Philippines approves 24 bidders for 2 GW renewables auction
Eight of the 24 bidders in the latest renewables auction in the Philippines are focusing on solar, along with eight bidders looking at wind, seven linked to run-of-river hydro, and one connected to biomass.
Pumped-hydro storage project takes shape in New Zealand
Lake Onslow, New Zealand, could become home to one of the world’s largest pumped-hydro storage facilities. A local consortium is now conducting a feasibility study and is investigating possible system designs and precise locations.
Solar cell efficiencies at a glance – updated
A research group led by UNSW’s Professor Martin Green has published Version 60 of the Solar cell efficiency tables.
Lithium-ion vs. vanadium redox flow storage
UK scientists have compared the performance of lithium-ion storage systems and vanadium redox flow batteries for a modeled 636 kW commercial PV system in southern California. They have found that both technologies, coupled with an oversized PV array, could achieve a levelised cost of electricity of less than US$0.22/kWh (AU$0.32/kWh), while offering a self-sufficiency ratio of 0.95.
South Korea kicks off 2 GW PV tender
Selected projects will be awarded a fixed rate under a 20-year contract under the country’s renewable energy certificate (REC) scheme and will sell electricity to local power distributors.
Hydrogen combustion tech for residential water heaters, trials in Australia
Japan’s Rinnai has unveiled what it claims is the world’s first 100% hydrogen combustion technology for residential water heaters. It is currently using the hydrogen water heater in demonstration projects in Australia, prior to commercialisation.
New model for grid-forming inverter operation
Scientists in the United States have developed a new model to allow utilities to use grid-forming inverters in order to better manage renewable energy intermittency. They describe the inverter main circuit representation, the droop control, and the fault current limiting function.
Toyota unveils 8.7 kWh battery for residential applications
The battery has a rated output of 5.5 kW and can be installed in outdoor environments. It is equipped with a hybrid power conditioner, a DC-to-DC converter, and a vehicle power supply adapter with a maximum output of 1.1 kWh.
SDN launches 550W solar module with 21.28% efficiency
The Korean manufacturer launched a new bifacial module based on M10 wafers and is planning to produce bigger modules based on M12 wafers starting from the third quarter.
