Nighthawk Energy Storage Project
Nighthawk is an American energy project located in Poway, California, that has been in commercial operation since 2026. The facility is helping meet our country’s rapidly growing demand for electricity by delivering reliable, affordable, locally generated energy. It is strengthening the local economy and supporting public services through tax revenue, job creation, and long-term investment, while providing the electric system with the capacity needed to keep California homes and businesses powered.
The project features advanced battery storage technology selected for its strong safety performance, enabling electricity from the grid to be stored and then dispatched when it is needed most. This supports grid reliability, reduces strain on energy infrastructure, and helps stabilize electricity prices.
As the long-term owner of the facility, Arevon is investing in public and community projects, along with supporting local organizations focused on public safety and youth programs. These partnerships reflect Arevon’s commitment to the communities that host its projects.
Back to all projectsEconomic and Environmental Benefits
130+
Construction Jobs
Supporting competitive wages with a focus on local hiring
Leased Land, Preserved
Avoiding permanent changes while protecting the land for future generations
5+ Billion Gallons
Water Saved Annually
Conserving vital resources
209,000+ Metric Tons
CO2 Emissions Avoided Annually
Improving public health
Prioritizing Safety
Safety is a top priority at Arevon, beginning with installing the most advanced technology available today. Compared to many alternative lithium-ion chemistries, Lithium Iron Phosphate (LFP) is less susceptible to thermal events and has become a preferred choice for utility-scale energy storage applications. The majority of our energy storage systems utilize LFP Megapack batteries, which are widely recognized across the industry for their stability and safety performance. Since their commercial introduction in North America, there have been no reported fire incidents involving LFP Megapacks.
Strengthening Communities
At Arevon, we don’t just develop energy projects — we show up, we listen, and we act as partners to the communities that make them possible. That means more than delivering electricity. It means supporting local priorities through volunteering, event sponsorships, and direct community investments.
As part of our long-term commitment, Arevon allocates a portion of each project’s capital cost to community benefits. We focus our resources on three key pillars: alleviating food and housing insecurity, supporting education with a focus on science, technology, engineering, and mathematics (STEM), and promoting public health and safety.
Information and Resources
News and Insights
Release
Arevon’s 300 Megawatt Nighthawk Energy Storage Project is Operational in Poway, California
Release
Arevon Closes $920 Million in Financing for its 1,200 Megawatt-Hour Nighthawk Energy Storage Project in California
Release
Arevon Celebrates Construction Proceedings at its 300 Megawatt/1,200 Megawatt-Hour Nighthawk Energy Storage Project in California
Press
Arevon Celebrates Opening of Its Nighthawk Energy Storage Project in Poway
Press
Arevon Energy’s 1,200 MWh California BESS Begins Operations
Press
Arevon Energy Begins Construction on 1,200 MWh California BESS
Press
Nighthawk Utility-Scale Energy Storage Facility To Use Tesla Megapack
Insight
Arevon: A Leader in America’s Critical Energy Storage Future
Frequently Asked Questions
Explore answers to common questions about energy storage technology.