World

The European Commission has presented the final version of its new rules for green hydrogen, with looser requirements to qualify hydrogen as “green.”

When US President Joe Biden signed the $500 billion (USD 369 billion) Inflation Reduction Act into law in August 2022, it was lauded as the most significant policy the world has yet seen to combat climate change and drive the transition to renewable energies. However, some international critics and competitors claim the landmark bill thwarts their slow-burning ambitions to foster green manufacturing at home. As governments scramble to respond to the scale of the IRA, Australia is one country realising it may have already been left behind.

Wafer prices rose by between 24% and 36% this week, according to new data from the China Nonferrous Metals Industry Association (CNMIA).

The Australian Alliance for Energy Productivity (A2EP) has released a free, online estimation tool to aid Australian businesses in sizing heat pumps to replace gas boilers. The tool estimates the capex, opex, net savings, and payback time based on inputs about heating, cooling, location, and temperature requirements.

An international consortium led by Israel’s Al-Zahrawi Society has launched the Regace project to develop agrivoltaic solutions for greenhouses. It will investigate the performance of a new tracking system across locations and climates and use carbon dioxide enrichment to improve crop yield.

Finnish researchers have proposed the use of solar, wind, and storage to provide desalinated seawater to restore forests. Their model predicts that an additional 10.7 TW of PV would be needed to actually do this by 2100, leading to a cumulative carbon dioxide sequestration potential of 730 gigatonnes.

The Bern University of Applied Sciences in Switzerland has published the initial results of a survey on the durability and performance of residential PV inverters and power optimisers over a 15-year period. They found that more than 65% of the inverters did not present yield-relevant faults by their 15th year of operation.

Polysilicon prices started to rise in the second half of January, according to new data from the China Nonferrous Metals Industry Association (CNMIA).

The prestigious Queen Elizabeth Prize for Engineering has this year been awarded to the University of New South Wales’ Professor Martin Green, Dr Aihua Wang and Dr Jianhua Zhao, as well as the Australian National University’s Professor Andrew Blakers, for their research work and development of PERC solar technology.

Scientists in Sweden have compared AC and DC topologies in PV-powered buildings using battery storage. They have found that DC distribution systems can achieve energy savings when they are combined with solar-plus-storage systems.