Prevalon bags 800 MWh project from Idaho Power, Westbridge announces five standalone projects in Alberta, Plenitude takes stake in 368 MWh of colocated storage in California

Prevalon Energy, a battery storage spin-out from Mitsubishi Power Americas, has secured its second contract with Idaho Power for a 200 MW/800 MWh BESS project. The deal includes a comprehensive long-term service agreement, encompassing maintenance and remote monitoring.
The 200 MW, four-hour battery storage project, will support Idaho Power’s plan to integrate over 5 GW of renewable energy from wind and solar over the next two decades. The supply deal emerged from a competitive bidding process initiated by Idaho Power to secure resources for providing reliable, cost-effective service to its customers and followed a supply deal agreed between the two companies in March 2024 for 328 MWh of battery storage.
The 800 MWh project will feature the Prevalon HD 511 systems offering 5.11 MWh of storage capacity per 20-feet container. The HD511 is a liquid-cooled AC system that includes battery enclosures, inverters, medium voltage transformers, and a US-made Energy Management System (EMS). The project is scheduled for full operation by 2026.
Westbridge Renewable Energy, a Calgary-based project developer, has announced five new battery energy storage system (BESS) projects in Alberta, Canada, adding 539 MWh capacity to its development portfolio.
Each of the BESS projects has completed site control, environmental permitting and feasibility studies, and are in the interconnection queue with the Alberta Electric System Operator (AESO).
With the latest announcement, the company’s development portfolio has grown more than 30 times since public listing and is now approximately 9.5 GW across 22 projects, with diversified activity in four countries: Canada, the United States, the U.K. and Europe.
Plenitude, part of the oil and gas major Eni, has inked a deal with EDP Renewables North America to purchase a 49% equity stake in a portfolio of two operational PV plants and a grid-scale BESS facility in construction located in the state of California, United States.
The Sandrini 100 (141 MWdc) and Sandrini 200 (266 MWdc) solar farms share the same grid connection infrastructure with the 368 MWh Sandrini BESS storage facility. Closing of the transaction is subject to customary approvals required by law.
The acquisition could up Plenitude’s total installed capacity in the country at about 1.7 GW. Earlier this week, the company announced the completion of construction works on its largest battery storage system ever – the 200 MW/400 MWh Guajillo BESS facility located in the Webb County, Southwest Texas. Upon the acquisition from BayWa r.e. in February 2022, Plenitude said that the Guajillo BESS will become operational by the end of 2023, making for a significant delay in the initial project delivery plans.