The Turkish government has published long-awaited rules for energy storage in its official journal. Local solar association Günder said the first projects will be approved in the middle of 2023.

Longi said it has achieved a 26.81% efficiency rating for an unspecified heterojunction solar cell, as confirmed by Germany’s Institute for Solar Energy Research Hamelin (ISFH).

Japanese scientists have described the steps that need to be taken to improve the average efficiency of CIGS solar modules, from around 18.5% at present to more than 20%. They presented all of the critical technical factors that are currently holding the tech back from broader market adoption.

Winaico’s new PV modules are based on monocrystalline half-cells and a 10-busbar design, with a power conversion efficiency of 21.0%.

The Romanian government has reportedly rejected almost all permit requests for large-scale solar projects. Law firm Vlăsceanu, Nyerges & Partners claims that the authorities are misinterpreting new rules designed to streamline the permitting process for small projects and support solar on agricultural land.

Zucchetti’s new battery features a nominal capacity of 5.12 kWh and a nominal voltage of 400 V. It says it is suitable for C&I and residential PV systems.

A US-Canadian research group has built an all-perovskite tandem PV device with a record-breaking open-circuit voltage of 2.19 eV, which they achieved by reducing recombination at the electron transport layer.

Technische Universität Dresden researchers have designed new solar cells based on phase heterojunctions. They used two perovskite polymorphs to build a novel PV device with an efficiency of 20.1% and a fill factor of 84.17%.

An international research group has developed new technology to measure soiling losses in PV installations, by using a simple pocket light. They said the new system offers similar performance to their reference devices.

The latest edition of Key Energy, Italy’s top solar event, shows that the nation is once again poised for growth. It also shows that incentive schemes can turn agrivoltaics and large-scale storage into market drivers like rooftop and ground-mounted PV.