redox

South Korea researchers have developed a cell by merging green algae with carbon nanofibers, in order to generate 9.5 W per cell and achieve a peak efficiency of 0.9%. They claim this is enough to power a micro-generation system for hydrogen production.

The choice of battery storage technologies in support of solar energy supply is broadening to suit a variety of emerging applications. VSUN has just made its first power play for vanadium-redox-flow batteries in the off-grid residential market.

German production equipment provider Schmid and Saudi chemical group Sabic are planning to begin activities at a new factory in Saudi Arabia, with production being expected to begin in 2021.

U.S. researchers claim to have added iron sulfate to anthraquinone disulfonic acid in a redox flow battery for the first time. The scientists said the combination could lead to inexpensive and more stable redox flow storage for just $54/kWh and said $66/kWh is already possible.

The Japanese electrical equipment supplier provided the battery to Taiwan Power Research Institute, which will pair the system with variable renewables such as solar in a pilot project.

Video interview: prices for redox flow batteries are sinking, while installed capacity increases steadily. Lorenzo Grande, technology analyst at IDTechEx, explains here the opportunities and limitations of flow technologies, and how the related market will likely develop.