Technology

Scientists have demonstrated a zinc-ion battery that overcomes many of the challenges for this technology. By working with a highly-concentrated salt solution as the electrolyte, the group was able to achieve stability over more than 2,000 cycles combined with a strong electric performance. The group says that its work opens up “a viable route to developing aqueous batteries for emerging electrochemical energy storage applications.”

Scientists in Bangladesh have evaluated how a 50 MW floating PV plant could be integrated with the 230 MW Karnafuli Hydroelectric Power Station, located at the Kaptai Dam on the Karnaphuli River. They found that the two energy sources can be perfectly optimized and that PV can compensate for the reservoir’s shortage of water storage during the winter season while hydropower can compensate for the poor yields of the floating array during the monsoon season.

Energy Vault secured $100 million in Series C funding for its EVx tower, which stores gravitational potential energy for grid dispatch.

The performance of the solar cell contacts can be improved with laser-assisted current treatment. The process does not damage the solar cells but only optimizes faulty semiconductor-metal contacts.

The comparison of two solar cladded roofs in Sydney, Australia, one bare beneath its panels and the other adorned with native grasses and plants, has found the panels on the green roof were, on average, 3.63% more efficient, producing an average daily output 13% greater than the conventional roof. The improvements are believed to stem from the lower temperatures on the green roof, thanks to its plants – which also provided a plethora of additional benefits.

The giga-scale factory, located in the Bengaluru city of Karnataka, will initially have the capacity to manufacture about 500 MW of electrolysis equipment per annum.

The battery was built with a new catholyte and a symmetry-breaking strategy, which consists of changing the symmetry of the redox-active organic molecules instead of using the common approach of attaching a hydrophilic functional group.

Hyderabad-based Allox Minerals looks forward to scaling up lithium titanate (LTO) anode and lithium ferrophosphate (LFP) cathode material production for electric vehicle batteries as the demand arises. It produces these materials using the economical method developed by International Advanced Research Centre for Powder Metallurgy & New Materials (ARCI). The company is also keen on forward integration up to battery assembly.

Next Energy and Marubeni are developing a blockchain tech for PV module inspection – with the support of the Japanese government – which they claim is able to provide data on a panel’s traceability and components as well as verifying that the data were not modified or tampered with.

The Indian solar developer said the Oman facility would use 3 GWp of solar and 0.5 GWp of wind energy to produce 2,400 tons of green ammonia daily and approx. 0.9 million tons annually. Construction is planned in phases with an investment of $3.5 billion over the next three years.