The CEO of Primus Power agrees that at present, lithium battery systems are more bankable than the flow battery energy storage systems of the type his company makes, but asserted that he believes this will change over time.

Hospitals, schools and railways in South Australia will be powered by an electricity retailer started up by billionaire steel trader Sanjeev Gupta, following the signing of an agreement between the state government and Gupta’s SIMEC ZEN Energy.

ESS Inc, among several companies looking to commercialise a flow battery energy storage technology, has netted US$13 million in a Series B funding round from investors that include global chemical company BASF.

Battery storage and smart technologies are to be rolled out to homes in the Irish town of Dingle as part of a new trial to test their potential to support the use of variable renewable energy supply resources and smart connection to the Irish electricity grid.

Primus Power is among a handful of makers currently commercialising their flow batteries, with rivals that include RedT, VIZn Energy and Redflow. Early customers have included Microsoft, which installed a Primus battery at its corporate HQ in a pilot project. Andy Colthorpe spoke with Primus Power CEO Tom Stepien to learn more.

Major Japanese business and government entities have extended their involvement in energy storage with the announcement of the country’s first virtual power plants, an investment in a US frequency regulation project and partnerships on technology.

Massachusetts, one of the few US states thus far to put consideration of energy storage into long-term planning decisions for electric utilities, will support 26 projects with US$20 million in grants.

Nuclear generation company Exelon and chemical company Albemarle, which has lithium mining facilities, are investigating opportunities in the energy storage space, having partnered with battery energy storage investor Volta Energy Technologies to do so.

Government policy and regulation offer the biggest barriers to the deployment of battery energy storage in the UK according to a cross-party group of MPs focussed on energy storage, which claims 12GW of batteries could be deployed by 2021 under the right circumstances.

Energy storage inverter and power conversion company DynaPower has delivered its first ever DC-to-DC converters to large-scale solar-plus-storage projects in the US, while Ideal Power has attained UL certification for two of its products.