Technology and R&D

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 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.

Developed by the Korea Institute of Energy Research (KIER), the “non-destructive” technology is claimed to enable the recovery of 100% of a module’s glass and to allow the reuse of silicon for producing new solar cells with an efficiency of 20.05%.

Australian National University researchers claim to have set a world record for bifacial solar cell efficiency that they say could boost the energy output of solar farms by 30%.

An Indian-Malaysian research group has investigated the effectiveness of several passive cooling techniques for solar panels, including the placement of plants around the modules or coir pith underneath them, both of which, surprisingly, offered good performance in terms of temperature reduction and power yield.

Supersola has developed a 315 W, half-cut monocrystalline PV module. It costs €699 and can be coupled with other two panels to form a 1 kW residential PV system.