World

When choosing a solar power plant, individuals and businesses pay the most attention to its power – after all, this will determine how much electricity will be produced. Other equipment, systems and sensors that allow monitoring and analysis of the operation of the power plant are often underestimated. But they shouldn’t be: the solar power plant will be used for several decades, so various failures and poor-quality monitoring can have a significant impact on the efficiency of electricity production.

As the PV industry scales to annual terawatt-level production to rapidly curtail the world’s emissions, it will become more challenging to continue the cost reduction trajectory. Increasing module production from current levels of 200 GW to 300 GW to several terawatts each year will consume significantly more material resources than the industry currently uses. This will require consideration of the additional materials to be sourced, writes Alison Lennon, chief scientist at Sundrive Solar and professor at the UNSW’s School of Photovoltaic and Renewable Energy Engineering.

Germany’s Fraunhofer ISE is applying its FlexTrail-printing technology to the direct metallization of silicon heterojunction solar cells. It said the technique reduces the use of silver, while maintaining high efficiency levels.

Scientists in Hong Kong have designed a redox flow battery with electrolytes made of zinc and cerium. They claim to have solved the incompatibility issue posed by these two elements. The device achieved a record average Coulombic efficiency of 94% during cycling.

Batteries are set to drive the energy and mobility transitions. Worryingly, when they degrade early or excessively – particularly because of misuse – it can be costly. Claudius Jehle, the CEO of volytica, explains how a better understanding of batteries can prevent expensive mistakes.

Creaton and Autarq have developed a modular solar tile for complex rooftops. The product is reportedly compatible with all common PV inverters.

Soren and Envie 2E Aquitaine have inaugurated a new solar module recycling facility in Saint-Loubès, France.

US-based solar controller producer Morningstar has launched a new line of off-grid inverters, featuring six models ranging from 150 W to 2,500 W. Production and deliveries are scheduled to start this year.

Multiple factors can affect the productive lifespan of a residential solar inverter. We take a look at solar inverters in the second part of our ongoing series.

Scientists from Germany’s Fraunhofer ISE – together with a consortium of plant manufacturers, metrology companies, and research institutions – have developed a new production line concept for high-efficiency silicon cells, with a throughput of 15,000 to 20,000 wafers per hour – roughly double the usual amount.