Technology

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.

Rose Amal arrived in Australia from Indonesia 38 years ago to study at UNSW. Now her leadership and research are contributing to a new sustainable economy for Australia and clean fuels for energy-hungry industries.

Beyond curtailment of abundant solar and wind output lies a giant sponge of industrial need. Engie Impact is determined to connect the dots.

JA Solar published data comparing its own modules, based on the 182mm wafer format, with others utilising the larger 210mm size over a six month period in field testing. The data show that the smaller of the two formats reached an average daily energy yield almost 2% higher. According to JA Solar’s analysis, the higher currents produced by the 210mm modules led to higher resistance, and more energy lost as heat.

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.

Transmission network operator Transgrid has secured state government approval for a “critical” $2.28 billion electricity interconnector that will link the New South Wales and South Australian energy networks for the first time.

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.