Tesla’s Megapack battery systems will power a new utility-scale battery energy storage system (BESS) in California. Arevon Energy has begun construction on the $600 million Nighthawk Energy Storage Project in Poway, near San Diego, which will feature a capacity of 300 MW and store 1,200 MWh of energy. The facility is expected to be operational by January 2026.
Once completed, the Nighthawk facility will provide enough energy to supply approximately 385,000 homes for four hours during peak demand times. This capability is crucial for stabilizing California’s energy grid and mitigating the risk of brownouts and blackouts.
Arevon, which develops and operates renewable energy projects across the U.S., is also behind a recently launched 200 MW Tesla Megapack-powered BESS in Barrio Logan, another San Diego area. Arevon CEO Kevin Smith emphasized the firm’s extensive experience in developing safe and reliable renewable energy projects, stating that the Nighthawk project will incorporate advanced safety measures, utilizing the most sophisticated batteries available today.
Tesla’s Megapack systems have gained traction in grid-scale energy storage applications globally, with installations in locations such as Nevada, Hawaii, Japan, China, Australia, and various European countries. The technology was recently selected for China’s largest grid-scale battery energy storage facility, highlighting its growing importance in creating more resilient energy infrastructures.
Construction of the Nighthawk facility is being managed by Rosendin, a California-based company, and is projected to generate over 130 local jobs. Additionally, the project is expected to contribute more than $30 million to the local economy, including approximately $12 million earmarked for the City of Poway to support infrastructure, schools, and public services.
In a related development, Tesla recently celebrated the production of its 1,000th Megapack at its Shanghai Megafactory, building on the 10,000 units produced last year at its facility in Lathrop, California. To meet the rising demand for its energy storage products, Tesla has also entered into a $4.3 billion agreement with LG Energy Solution to supply U.S.-manufactured lithium iron phosphate (LFP) batteries for use in its Megapack systems and other energy solutions.
