A large-scale pumped hydro energy storage project in Washington State has passed a key stage of approvals, while another in South Dakota has been dropped.

Wärtsilä has revealed details of fire testing its large-scale battery storage product was put through, which the company claimed went beyond commonly accepted requirements.

Energy optimisation software provider Peak Power has received US$35 million investment, while startup Financial Machines has launched its own platform, with both targeting the US energy storage market.

Senators in Maine are considering legislation to accelerate energy storage development, including a focus on who is allowed to own resources placed on transmission and distribution grids.

Sungrow has received a Certificate of Approval (COA) in New York City for its Powertitan battery storage solution, joining just a handful of other approved products on a list produced by the city’s fire department.

Samantha McGahan of Australian Vanadium on the electrolyte, which is the single most important material for making vanadium flow batteries.

Japan’s Marubeni Corporation working with Vietnamese battery and energy-as-a-service provider VinES to develop energy storage facilities.

A tender will open in a few days’ time under NSW’s electricity system roadmap through which 550MW of long-duration storage could be procured.

The first contract awards for Ontario’s expedited procurement have been announced, in which 739MW of battery storage bids were successful.

Convergent Energy and Power has brought online a battery storage project for New York utility O&R which will reduce the need for more expensive network upgrades.