Nickel-salen for a battery that charges in 10 seconds
Scientists in Russia introduce a promising new material for battery energy storage, the product of more than three years of research. Incorporating a nickel-salen polymer into the cathode, the group demonstrated a battery that can charge and discharge ten times faster than today’s lithium-ion batteries. And though the battery still lags in terms of overall capacity, the group is confident that its discovery will lead to big improvements for lithium batteries.
Waterproofed: new cable testing, standard for Floating PV
Join this upcoming pv magazine Webinar to learn about the outlook for floating PV (FPV) and challenges facing investors; the TÜV 2Pfg 2750 standard, and the first certified water-resistant PV DC cable according to the new standard.
Work begins on green hydrogen storage cavern in Sweden
Vattenfall, SSAB and LKAB are building a rock cavern storage facility in a coastal city in northern Sweden. The 100-cubic-meter facility will be built 30 meters below ground and will begin storing green hydrogen next year.
P-type TOPCon solar cell with 21.2% efficiency
Fraunhofer ISE scientists have identified the best metallization pastes to help reduce contact resistivity and contact recombination in p-type TOPCon solar cells. They applied a silicon nitride layer through plasma-enhanced chemical vapor deposition onto both sides of a cell.
EDF bags PPA for 20 MW solar park from French railway operator
Construction on the solar plant is expected to begin this year. It will supply power to SNCF’s unit SNCF Energie over a 20-year period.
Keep cool and distribute stress: A recipe for improved performance
Both higher energy yields and longer lifetimes are needed for PV modules to meet growing customer expectations. Couple this with the fast moving nature of PV technology – larger formats, new cell interconnection techniques and many more can all affect long term performance – and it’s clear that understanding and mitigating the various mechanisms that lead to performance has never been more important. In this pv magazine Webinar we’ll examine the roles of temperature, humidity and mechanical stress in driving some of these mechanisms, and how Coolback’s innovative solution promises to limit the effects of these, ensuring both better day-to-day module performance and a longer operational lifetime.
Iberdrola, Mapfre set up renewable energy joint venture
The new company, which will be majority-owned by the Spanish insurance group, is currently developing 130 MW of photovoltaic projects across Spain.
New materials for organic redox flow batteries
Scientists in Russia have designed a whole series of new compounds that could serve as catholytes and anolytes in organic redox flow batteries. The materials promise to open up new pathways for further research, and overcome some of the challenges for organic redox flow batteries in commercial, large-scale energy storage projects.
Solar and wind together overhaul global hydro capacity
The latest set of clean energy statistics compiled by the International Renewable Energy Agency signal a changing of the guard when it comes to clean power, with legacy hydropower facilities overtaken by new intermittent renewables.
Solar water heater to maximize self-consumption
French module manufacturer Systovi has developed a smart water heater that can forecast the weather, store surplus green electricity, and return it in the form of hot water, according to household needs.
