Technology and R&D

A German team developed models to illustrate water-saving potential in PERC silicon solar cell manufacturing based on a circular approach and commercially available technology. In the case of a 5 GW fab, water savings of up to 79% and wastewater discharge reductions up to 84% could be achieved, a “significant” improvement compared to a reference scenario.

Alberto Boretti was a senior research professor at Prince Mohammad Bin Fahd University in 2021 when he first started discussing the idea of a hydrogen city in Al Khobar, Saudi Arabia. The New Zealand-based independent tells pv magazine that it is now commercially feasible, as the city’s 200 MW of energy demand would necessitate 1 GW to 1.3 GW of solar and wind capacity, 509 MW to 997 MW of electrolysis capacity, and 145,000 MWh of hydrogen storage capacity.

Contemporary Amperex Technology Co. (CATL) has shown its latest lithium iron phosphate (LFP) battery at an auto show in Beijing. The Chinese company says it has an energy density of 205 Wh per kg, almost 8% higher than the current state of the art for such batteries.

Tequs said its new plug-and-play heat pump can deliver up to 90 C of heat for space heating, air conditioning, and domestic hot water. The new product is available in eight versions with capacity ranging from 17 kW to 268 kW.

Researchers at the Korea Advanced Institute of Science and Technology (KAIST) have identified a high-energy, high-power hybrid sodium-ion battery capable of charging in just a few seconds. The system integrates anode materials typically used in batteries with cathodes suitable for supercapacitors.

IEA PVPS has published its new “Snapshot of Global PV Markets 2024” report, highlighting key insights and trends. Despite record installations, concerns over profitability and manufacturing dynamics persist, underscoring the need for strategic interventions and policy support to navigate towards a resilient and sustainable PV ecosystem.

GameChange Solar, a US-based tracker supplier, has announced the construction of a 3 GW tracker factory in Saudi Arabia, with plans for potential expansion to 5 GW in the future.

An international research team has placed a neem oil tank on the back of solar modules for cooling purposes. The proposed solution reportedly improves PV panel performance by up to 17.8%.

The researcher team, from Amrita Vishwa Vidyapeetham university in Coimbatore, India, sandwiched macroalgae between a carbon-coated copper electrode and a titanium oxide-coated fluorine-doped tin oxide electrode. The 1 cm2 device exhibited a 1.25 mA photocurrent and 0.5 V photovoltage under UV light.

Researchers in the United Kingdom have analyzed lithium-ion battery thermal runaway off-gas and have found that nickel manganese cobalt (NMC) batteries generate larger specific off-gas volumes, while lithium iron phosphate (LFP) batteries are a greater flammability hazard and show greater toxicity, depending on relative state of charge (SOC).