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Inverted perovskite solar cell with 16.94% efficiency

A US-Chinese research group has built a perovskite solar cell with a hole-transporting material (HTM) based on conducting polyaniline (PANI) polymer. The device showed significantly higher efficiency than a reference solar cell relying on an HTM made of commonly used PEDOT:PSS.

Chinese PV Industry Brief: Tongwei was largest cell manufacturer in H1 2022

Tongwei was followed by Aiko Solar, Runergy, Solar Space and Jietai Technology. The top five cell manufacturers supplied a total of 59 GW.

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KKR acquires 83.44% stake in Albioma

The transaction is part of KKR’s expansion strategy in the renewable energy sector.

Using p-type wafers in heterojunction solar cells, not a lost battle

An international research group has reconstructed the trajectory of p-type wafers in the heterojunction solar cell segment and has identified the lack of knowledge about boron-oxygen related light-induced degradation (BO-LID) as the main cause for the limited adoption of these wafers and the success of their n-type counterparts. According to the scientists, however, there is still big room for improvement for p-type technologies in heterojunction cells.

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Photovoltaic micro-inverter based on gallium nitride transistors

Scientists from France’s CEA-Ines developed a 400 W micro-inverter with a power density of 1.1 kW/L and an efficiency of 97%. The device utilizes GaN 600V diodes and power transistors developed by CEA’s electronic branch CEA-Leti.

South Korea’s largest renewables PPA

SK Specialty has agreed to buy electricity from 50 MW of renewable energy assets located in South Korea’s South Chungcheong Province from 2024 to 2044 at an undisclosed price.

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Toshiba energizes PV-powered hydrogen refueling station in Japan

The system is reportedly able to refill about eight hydrogen fuel cell vehicles, each in three minutes. It is also able to supply electric power by using hydrogen produced with renewable energy within the station.

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Storing renewables in soil mounds via water balloons

Scientists in Denmark have developed a storage technology that utilizes large underground water balloons and the pressure of the soil to activate a turbine to generate power. They are currently building a first 10 m x 10 m demonstrator to select critical technologies related to the membrane and to the construction of the “movable hill” that will form the terrain part of the battery.

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Only one PV project to compete in Quebec’s 780 MW renewables tender

The 40 MW solar park is under development by Saint-Augustin Canada Electric Inc and planned to be located in Bas Saint Laurent, with completion scheduled for October 2026. Wind and hydropower were the prevailing sources in the procurement exercise.

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New residential lithium-ion battery from China

Chinese manufacturer Bslbatt has unveiled an upgraded version of its residential battery. The device has a storage capacity ranging from 5.12 to 12.8 kWh and is reportedly able to provide steady operation for up to 6,000 charge cycles.

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