By Colin Kellaher


Dominion Energy is seeking Virginia regulatory approval for a battery-storage pilot project that the utility company said could significantly increase the length of time batteries can discharge electricity to the grid.

Richmond-based Dominion on Tuesday said the project, which would located at its Darbytown Power Station in Henrico County, will test two alternatives to lithium-ion batteries: iron-air batteries developed by Form Energy and zinc-hybrid batteries developed by Eos Energy Enterprises.

Dominion said Form Energy's iron-air technology has the potential to discharge energy for up to 100 hours, significantly longer than batteries that are currently available.

Eos, based in Edison, N.J., said it will contribute 16 megawatt hours of storage to the proposed project.

Dominion said that subject to a regulatory green light, it expects construction to begin by late 2024, with the project operational by late 2026.


Write to Colin Kellaher at colin.kellaher@wsj.com


(END) Dow Jones Newswires

09-19-23 1034ET