Technology and R&D

A Florida new home subdivision has reached a $4.2 million agreement with Tampa-based Block Energy to install 77 solar arrays in a community microgrid.

A Chinese research team has built an all-perovskite tandem solar cell with a 19.6%-efficient wide bandgap top cell relying on a 2D/3D heterostructure and narrow bandgap bottom cell with a 21.3% efficiency. The tandem device showed remarkable stability by retaining 90% of its initial efficiency after 855 h of continuous operation.

Scientists from South Korea have designed new photovoltaic modules with both rectangular and triangular shapes and solar cells connected in parallel, which they said have higher partial-shading tolerance compared with cells connected in strings. The panels are reportedly less sensitive to partial-shading geometries than shingled modules.

Australia’s Pure Hydrogen says that its Taurus hydrogen fuel cell prime mover is now available for sale.

A Dutch-German research team has tested how a series of framed messages may be used to boost PV system sales, addressing both self-interest and environmental concerns, and has found that all the proposed messages are effective at promoting the purchase of solar panel installations.

Stanford University researchers have explored the efficiency of a single-junction solar cell using transition metal dichalcogenides such as MoS2, MoSe2, WS2, and WSe2 as absorbers. The device has shown substantial light absorptance in ultra-thin 5-nanometer (nm) films, achieving high short-circuit current levels.

The Chinese manufacturer said TÜV SÜD confirmed the results. It launched the G12 series of heterojunction solar modules, with a focus on utility-scale projects, in the second half of 2022.

Researchers in Denmark have studied the technical and economic feasibility of biomethanation through large-scale PV power generation. They said that the intermittent PV-driven biomethanation process matches the efficiency of continuous processes after several days.

The US Department of Energy’s National Renewable Energy Laboratory (NREL) has identified a low-cost way to produce high-efficiency III-V solar cells with dynamic hydride vapor phase epitaxy (D-HVPE). The synthesis involved a gallium arsenide (GaAs) solar cell with a gallium indium arsenide phosphide emitter layer.

Green Gravity, an Australian energy storage startup, says it will explore opportunities to deploy its gravitational energy storage technology in Europe, after signing an agreement with Romanian state-owned energy producer Complexul Energetic Valea Jiului SA.