Technology and R&D

A farmer in the United States has installed vertical bifacial solar, leveraging greenhouse albedo to increase output. The installation demonstrates promising generation during winter months, while maximising limited land space.

A study by TÜV Nord in Malaysia shows that the latest generation of tunnel oxide passivated contact (TOPCon) modules surpass their older rivals on energy yield. The researchers compared n-type TOPCon modules with older p-type PERC modules, both manufactured by JinkoSolar over a three-month period earlier this year. The newer product showed an energy yield 5.69% higher than its PERC counterpart.

Horizon Power, Western Australia’s regional power provider, will deploy a 78 kW/220 kWh vanadium flow battery in the state’s north as it seeks to increase its understanding of how the Australian-born technology can be best utilised to support long periods of 100% renewable energy supply in regional and remote areas.

The Alpha 150 battery, produced in the Netherlands by Adelaide-headquarted electronics manufacturer Redarc, has a lifespan of more than 5,000 cycles and a continuous discharge rating of 200 A.

A team of engineers at Melbourne’s RMIT University have developed a rechargeable ‘proton battery’, claiming the technology has the potential, with further development, to store more energy than currently available lithium-ion batteries.

Solar modules are evaluated in the Renewable Energy Test Center annual PV Module Index.

Researchers in Canada have found that nearly zero-energy buildings (NZEBs) with on-site solar energy generation should not exceed an energy use intensity (EUI) of 50 kWh/m2a, which they said corresponds to a maximum of 10 floors. They also ascertained that the maximum permitted EUI by net-zero energy status is 17–28 kWh/m2a.

Australian battery technology company Vaulta has unveiled its first dedicated residential battery with the small-scale energy storage system purportedly able to operate for 4,000 cycles with an 80% depth of discharge.

The SeaVolt consortium says it will launch an offshore floating PV demonstrator off the Belgian port of Ostend. The main companies – Tractebel, DEME, Equans and Jan De Nul – say the anchored floating array will collect data for at least a year to scale up the tech.

Scientists in China have proposed to use an algorithm that simulates the behaviour of foraging bees to shape a new grid-forming inverter design. The approach is designed for both grid-connected and islanded inverters.