Energy storage company Energy Vault Holdings Inc. and renewables provider ACEN Australia announced agreements for two 400 megawatt-hour (MWh) battery energy storage system (BESS) deployments in Australia.

Under the agreements, Energy Vault will deploy both a 50 MW/100 MWh BESS and a 150 megawatt (MW)/300 MWh BESS at ACEN’s 720 MW New England Solar project, located near Uralla, Australia.

The BESS will be charges and discharged daily and designed to dispatch stored renewable energy at peak consumption hours — while reducing New South Wales’ reliance on coal-fired power generation.

Construction of the deployments is expected to begin in the second half of 2024, with commercial operations expected in 2025 and 2026, the companies said in a May 9 press release.

“ACEN Australia’s New England Solar is a critical source of renewable energy for the NSW region, and we are proud to play a role in ensuring its ability to reliably provide the region with clean power in the most efficient and cost-effective manner possible,” said Robert Piconi, chairman and CEO of Energy Vault. “These deployments, and the tight timelines under which they will be delivered, stand as a testament to Energy Vault’s commitment to a customer-centric approach to energy storage as well as evidence of the growing global demand for reliable and effective energy storage solutions. We see today’s agreement as just the first step in a long and fruitful relationship with ACEN and their renewable power generation projects moving forward.”