Vietnamese manufacturer Irex has announced a new glass-glass solar panel with a power output of 265 W and a power conversion efficiency of 18.1%.

The system has dimensions of 834×417×1,766 mm and weighs 205 kg including the design panel. It achieves an electrical efficiency of 56% and can be connected with a hot water storage unit.

Dansk Solenergi ApS has developed a 13.6 kg tile that can be used for both new buildings and building renovation. The device is currently being produced in Denmark, where the company operates a 40 MW line.

A group of international researchers has observed how non-radiative charge recombination occurs in organic PV and claims to have identified a potential solution that could bring this solar tech closer to crystalline silicon in terms of power conversion efficiency.

Closed-loop pumped-hydro storage offers more chances to minimise environmental effects on water sources and overcomes the problem of finding suitable sites. According to an Australian research team, closed-loop systems could prevail on open-loop systems in the future and this trend is confirmed by another group of scientists from the United States.

The project includes a solar park coupled with what HDF Energy claims is the “largest green hydrogen storage of intermittent electricity sources” at 128 MWh. Importantly, the company also simultaneously announced expansion plans into Australia, saying its hydrogen technology will soon be available here, adding that it has “projects already in development for Australia”.

Storing hydrogen in carbon nanotubes and other nanostructures is still far from reaching commercial maturity. A Japanese research team, however, has developed a new simulation technology that may help better estimate the energy needed to favour the ideal interaction between hydrogen and its storage material.

The 97%-efficient microinverter has a power output of up to 960 VA and APsystems claims it is the most powerful dual microinverter in the world.

The system combines software that applies a modulated electric current to the PV panels and an indium-gallium-arsenide (InGaAs) photodiode detector that takes a sequence of images of the panels. According to its creators, the proposed technique works with any lighting conditions and in all weather.

A 19.8 kW PV system is powering a telecommunications antenna at a French air control centre. When it produces more energy than needed, the surplus is used to produce hydrogen which is then utilised to produce new electricity via a fuel cell system and provide power to the antenna during a period of up to five days. For short-term storage, lithium-ion batteries are used.