Technology and R&D

US scientists have made light-tracking, three-junction tandem PV cells with an active area of 650 × 650 square micrometers. They are based on indium gallium phosphide, gallium arsenide, and indium gallium arsenide antimony nitride and use photonic crystal film for maximum efficiency.

Danish gas transmission system operator Evida will exempt homeowners and individuals that want to abandon gas and choose renewable energy for heating from paying the grid disconnection fee. The scheme will be run on a first-come, first-served basis.

U.S. researchers have assessed the technical and economic feasibility of solar canals in California and have found that their LCOE is already close to that of ground-mounted solar plants. Three different project configurations were analyzed for eight different sites across the California network of canals.

In a sales environment where only one in 10 viable solar projects moves forward, getting from a good idea to a firm decision by a customer needs to happen fast. Here’s how one commercial solar installer makes technology work.

German energy company Steag wants to build three PV plants totaling 244 MW across several olive groves in the southern Italian region of Apulia. The unsubsidized agrivoltaic projects are expected to sell electricity through power purchase agreements. The distance between the rows of the olive grove and the photovoltaic system has been specifically designed both to avoid shadowing and allow the passage of the automatic machinery necessary for the cultivation of the olive trees.

A US-Taiwanese research group has created a new spin coating method which they claim can be applied in the mass production of mini perovskite panels. The scientists used sulfolane as an additive in the perovskite precursor to convert the perovskite phase via a new reaction route. They demonstrated a mini-module with a power conversion efficiency of 16.06% and an active area of 36.6 cm2.

Solar module developers have long recognised the detrimental effects heat has on cell performance but West Australian company Sunovate has pointed to solar PV-thermal (PVT) technology as an opportunity to value add by improving efficiency.

Scientists in the United States have analyzed how semitransparent organic solar cells placed on the roof of a greenhouse may impact crop production. They assessed, in particular, how solar power generation may affect lettuce crops and found that the plants not only grow unhindered but also that the solar cells reduce overheating in the greenhouse.

German tracker manufacturer Ideematec has adapted its Horizon L:TEC tracker for a series of agrivoltaic projects totaling 100 MW that will be developed in France by Spanish developer Amda Energía. The new tracker is claimed to be able to operate synergistically with the agricultural equipment.

Italian research agency ENEA is planning to build a €14 million ‘hydrogen valley’ in the province of Rome. pv magazine has spoken with its director of the department of energy technologies and renewable sources, Giorgio Graditi, and has found out that the project will also include the production of hydrogen from photovoltaics.