AC vs. DC in residential buildings equipped with solar-plus-storage
Scientists in Sweden have compared AC and DC topologies in PV-powered buildings using battery storage. They have found that DC distribution systems can achieve energy savings when they are combined with solar-plus-storage systems.
Enphase demonstrates bidirectional EV charger
Enphase’s new bidirectional EV charger enables vehicle-to-home and vehicle-to-grid applications, and can be integrated with its home energy systems.
Gujarat tenders 1 GW of solar projects
Gujarat Urja Vikas Nigam Ltd (GUVNL) has launched a tender to procure up to 500 MW of solar power from PV projects to be set up anywhere in India with greenshoe option of additional up to 500 MW. Bidding closes on March 13.
Polysilicon price rebound continues
Polysilicon prices started to rise in the second half of January, according to new data from the China Nonferrous Metals Industry Association (CNMIA).
Reflective membrane to increase albedo, power yield in bifacial PV projects
Germany-based Solmax has developed a reflective membrane made of polyethylene resins and coated with a thin white polyethylene layer that reflects ultraviolet (UV) rays. The company claims the membrane can increase the energy yield of a bifacial PV project by between 5% and 20%, depending on the plant configuration.
Reliance Industries unveils India’s first hydrogen combustion engine technology for heavy-duty trucks
Reliance Industries Ltd developed the hydrogen internal combustion engine technology solution for heavy-duty trucks together with Ashok Leyland and other technical partners. It plans the technology’s first commercial deployment at scale initially across its captive fleet following extensive test and validation.
NTPC tenders EPC package for 500 MW of solar projects
NTPC Renewable Energy Ltd (NTPC REL) is accepting bids to install and commission 500 MW of grid-connected solar PV projects anywhere in India.
Tata Power posts $127.6 million profit in Q3 FY 2022-23
The integrated power company reported a profit after tax or net profit of INR 1,052 crore ($127.6 million) in the quarter ended December 2022, a 91% increase year-on-year.
From diesel to DC
For a long while, it looked as if hydrogen fuel cells would be the technology of choice for emissions-free road transport. However, truck manufacturers and freight forwarders recently turned their attention to battery-electric vehicles. This will require special charging technology and PV looks set to play an important role.
Storing hydrogen in graphene oxide-based nanohybrids
Researchers from the Indian Institute of Technology, Kanpur, and the National Institute of Technology, Srinagar, synthesized and studied nickel nanoparticle dispersed, boron-doped reduced graphene oxide (Ni-B-rGO) samples for hydrogen storage. The results achieved are the best so far for hydrogen storage at the given temperatures and pressures for non-palladium-based systems, they said.
