Utility Scale Storage

Scientists in the United States have used microwaves to convert ubiquitous plastic packaging material polyethylene terephthalate into a battery electrode component. The researchers say anodes based on the material could be suitable for both lithium-ion and sodium-ion devices.

Indian scientists have developed a low-cost electrocatalyst based on iron, manganese and N-doped carbon derived from fish gills (Fe/Mn/N-FGC) to increase the performance of a homemade rechargeable zinc-air battery. The Fe/Mn/N-FGC cathode-based battery achieved open-circuit voltage of 1.41 V and a large power density of 220 mW/cm2 at 260 mA/cm2 current density – compared to 1.40 V and 158 mW/cm2 for a commercial platinum/carbon-based battery – with almost stable charge-discharge voltage plateaus at high current density.

The project was selected in a tender for storage deployment in non mainland grid interconnected areas that was finalized by France’s Energy Regulatory Commission in 2016.

A thinktank has studied whether increased solar energy would contribute significantly to reducing the carbon footprint of the French and European electricity systems in an attempt to respond to a common French refrain the nation needs no further decarbonization of energy because it has nuclear power.

Perhaps it is not surprising a report co-produced by Europe’s solar industry places PV at the heart of a zero-carbon, mid-century energy system on the continent. However, the study does flesh out two out of three scenarios in which becoming carbon-neutral by 2050, or even 2040, could be possible.

Researchers from Deakin University in Australia claim their battery chemistry is based on a new class of electrolyte material which carries no risk of uncontrolled thermal events and represents a viable alternative to rechargeable lithium-ion batteries.

Although the energy price recovered this week, ultra low levels driven by bumper solar power generation on a sunny weekend in Germany reportedly put further pressure on the business case for conventional energy.

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.

With its sonnenVPP, German battery company Sonnen wants to improve the efficiency of virtual power plants which it says can offer primary balancing energy from houses with solar and storage and can operate up to 90% more cost-effectively.

German companies Uniper and Siemens will cooperate on joint projects to advance the use of green hydrogen and sector coupling. Conventional, gas-fired hydrogen production plants will be gradually transformed as part of the initiative.