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Developed by a research group in China, the two-terminal all-perovskite tandem device utilizes a 23.11%-efficient single-junction top cell relying on an optimized Sn-Pb perovskite material. The perovskite-perovskite cell was also able to retain 95.7% of the initial efficiency after being stored in a glovebox for 2,200 h.

The US Department of Energy is funding a pilot project to demonstrate the commercial viability of storing energy in heated sand, which is capable of producing 135 MW of power for five days.

In a new weekly update for pv magazine, OPIS, a Dow Jones company, provides a quick look at the main price trends in the global PV industry.

Solar is poised to be the leading energy source in the next century. In terms of cost, renewables are almost at par with their dirtier counterparts, and within a few years will soon overtake them in terms of the volume of the overall worldwide energy produced.

The new product combines the NEO 800TL-X Microinverter and the NOAH 2000 Battery. Up to four batteries can be stacked, for up to 8,192 Wh of storage capacity.

The European authorities are trying to determine whether two consortia – including subsidiaries of Longi and Shanghai Electric – violated the new EU rules on foreign subsidies when they participated in a procurement process in Romania for a 110 MW solar farm. The European Commission is expected to make a final decision within 110 working days.

H2 Mobility’s live map has reported the planned closure of at least three hydrogen filling stations throughout Germany in the coming months, while the Japanese government has revealed plans to support the development of low-carbon aviation solutions, including hydrogen-combustion engines.

PV modules, inverters, charge controllers, batteries and cables intended for rooftop solar systems will benefit from exemptions from customs duties until 2025.

Cero Development Hellas, a joint venture between Macquarie and Enel, has secured approval to install 749 MWh at one of the largest PV plants in Greece.

PV Evolution Labs (PVEL), Extel Energy, and PI Berlin have unified under the Kiwa brand. Dutch company Kiwa, which has acquired the three PV testing laboratories over the past three years, says it aims to more effectively present its range of services for the solar industry.