Projects using novel, non-lithium battery technology have been progressed by organic flow battery firm CMBlu, liquid metal battery firm Ambri, and the NAS battery division of NGK Insulators.

US utility company Xcel Energy has received approval from Minnesota state regulators to build a 1GWh project in the state using Form Energy’s iron-air battery storage technology.

Liquid metal battery storage startup Ambri’s technology will be demonstrated by US utility company Xcel Energy in Colorado.

Utility Xcel Energy’s latest resource plan for Colorado, aimed at increasing renewable energy generation and aiding the retirement of coal plants, was approved by the state’s Public Utilities’ Commission (PUC) on Monday.

Xcel Energy has filed a plan which would retire two coal plants, add significant capacities of renewables and gas – and deploy 275MW specifically in combination with PV.

Median bids received by US utility Xcel Energy in a solicitation for energy resources for energy storage paired with solar came in at US$9 per megawatt lower than the previously observed record.

Energy storage system integrator Younicos has signed off on a deal with Panasonic to design and develop a solar-plus-storage system at Peña Station NEXT in Denver, Colorado, which includes the operations hub for Panasonic Enterprise Solutions Company and Panasonic CityNOW.