Scientists at Monash University claim to have developed the world’s most efficient lithium-sulfur battery. They say the new device could enable an electric vehicle to drive more than 1,000km on a single charge.

2.5 MW of solar is being deployed at three project sites in Papua New Guinea, with commercial operations likely to begin within nine months. The installations will provide power in the island province of New Ireland at lower prices, while also improving access to electricity.

Comet-ME has developed a solar-powered submersible borehole piston pump for off-grid communities and smallholders to use for irrigation and domestic purposes. The device, compatible with PV systems from 300-900 W in size, can pump water from 45m with as little as 50 W of continuous solar power.

In a newly published policy document, Hanoi has urged regional governments and the country’s state-run utility, EVN, to suspend authorizations for new solar parks until further notice. Around 8.93 GW of utility-scale solar capacity is already approved for development in Vietnam, according to the Ministry of Industry and Trade.

Scientists from Penn State University have developed a self-heating battery for electric vehicles which is said charge in only 10 minutes at 60 degrees Celsius.

Dutch transmission system operator Enexis, gas provider Gasunie and oil company NAM are considering diverting excess solar capacity in Drenthe province into hydrogen production. The companies are assessing which wind and solar projects may have been excluded from the grid.

Chinese scientists have developed a PV floor tile they say is suitable for pavements and cycling tracks. The devices were tested on a ‘green deck’ in Hong Kong. The developers say the tiles have demonstrated satisfactory solar energy conversion, anti-slip performance, heat-resistance and strength.

According to a new study by Finland’s LUT University, solar PV consumes between 2% and 15% of the water that coal and nuclear power plants use to produce just 1 MWh of output; for wind, this percentage ranges from 0.1% to 14%. Under the researchers’ best policy scenario, water consumption could be reduced by 75.1% by 2030, compared to 2015 levels.

The Malaysia Automotive, Robotics and IoT Institute is planning a huge solar power project which will integrate agriculture and livestock farming in the Sabah region. The research institute claims to have already secured $50 million for the project’s first, 200 MW phase. The 25,000ha required for the projects will host up to 150,000 cattle as well as cultivation of forage crops such as kenaf, corn, wheat and hay.

With the publication of Notification No. 402/TB-VPCP on Nov. 22, the Vietnamese government has cemented its transition from feed-in tariffs to auctions, in a clear step away from earlier promises to revive the FIT scheme.