Arevon Energy said its largest standalone battery energy storage project is now operational. The company on August 13 announced that the 300-MW Nighthawk Energy Storage Project has come online in Poway, California.
Nighthawk uses lithium iron phosphate battery technology, which Arevon said is recognized for its strong safety record and long operating life. The installation will store electricity during periods of lower demand, and dispatch it when demand for electricity is highest. Arevon said the facility supports power grid reliability in the area around San Diego.
Arevon owns the project, which it developed, built, and will operate. Nighthawk has a long-term agreement with Pacific Gas and Electric Company (PG&E). Arevon, headquartered in Scottsdale, Arizona, and with a regional office in New York City, said the project over its lifetime is expected to generate more than $30 million in property tax revenue to help fund local schools, public safety, infrastructure improvements, and other essential community services. Nighthawk employed more than 130 workers during peak construction.
“Energy storage is becoming increasingly important as electricity demand continues to rise across California and the United States. Projects like Nighthawk are critical to America’s growing energy needs because they strengthen grid reliability while delivering lasting economic benefits for local communities,” said Justin Johnson, CEO of Arevon. “We are proud to have developed, constructed, and brought Nighthawk online, and we look forward to its continued contribution to the San Diego region for years to come.”
“One thing that clean, green energy has taught us: battery storage is essential,” said Joel Anderson, San Diego County District 2 supervisor. “This project strengthens our infrastructure, boosts our local economy, supports grid reliability, and provides enough capacity to power up to 385,000 homes when we need it most.”
Arevon owns and operates more than 6.3 GW of solar and energy storage projects across 18 states. The company is currently building 370 MW of new capacity. The company has also partnered with local utilities to develop and build 480 MW of solar energy.
Leuwam Tesfai, executive director at the California Public Utilities Commission (CPUC), said, “Projects like Nighthawk demonstrate how thoughtful planning, strong partnerships, and targeted investment can deliver the reliable, clean energy resources California needs. Through the CPUC’s integrated resource planning and mid-term reliability procurement programs, we identified the need for new energy storage to maintain reliability as the grid evolves. Nighthawk is an important example of that planning becoming reality, helping strengthen grid reliability, support California’s clean energy transition, and ensure customers continue to receive safe, affordable, and dependable electric service.”
“Reliable renewable energy infrastructure is the foundation for long-term economic growth,” said Chris Cate, president and CEO for the San Diego Regional Chamber of Commerce. “Projects like Nighthawk help San Diego stay ahead of rising energy demand while strengthening the grid resilience that attracts employers, supports innovation, and keeps our region competitive. Arevon’s investment here in Poway reflects exactly the kind of partnership between infrastructure, business, and community that the Chamber is proud to champion.”
Mike Leland, CEO at Poway Chamber of Commerce, said, “From the outset, Arevon has shown what it means to be a committed community partner. The company has taken the time to understand the community and support local organizations and initiatives that are important to our residents. The Poway Chamber of Commerce is grateful for Arevon’s investment in Poway and looks forward to building on this partnership and the positive impact it can have in our area for years to come.”
Beyond the project’s economic benefits, Arevon has partnered with organizations throughout Poway and the greater San Diego community, supporting youth programs, first responders, special needs adult services, climate education, and local nonprofit organizations. Key partnerships include the North County Special Needs Community Foundation, Kiwanis Club of Poway and The Ranches, Rancho Family YMCA, the Deputy Sheriffs’ Association of San Diego County, and other local organizations.
“When I learned about Arevon’s Nighthawk Energy Storage Project, we connected to discuss several local programs supporting the special needs community in the Poway area, and the Arevon team was enthusiastic about learning more,” said Tony Rubino, president at North County Special Needs Community Foundation. “It was evident to me from the beginning that the company was genuinely committed to engaging with and supporting the local community. I am grateful to the Arevon team for its positive attitude and commitment to following through on that promise. The company has been very supportive of several local special needs events, and we appreciate its continued partnership.”
Arevon is one of California’s leading renewable energy developers, owners, and operators, with more than 4 GW in operation, representing billions of dollars in capital investment. Recent milestones in the state include the start of operations at its two-phase Eland Solar-plus-Storage Project, winner of a 2026 POWER Top Plant Award, along with the Peregrine Energy Storage Project, Vikings Solar-plus-Storage Project, and Condor Energy Storage Project. Additionally, the company’s 250-MW Cormorant Energy Storage Project is currently under construction in Daly City, California.
—Darrell Proctor is a senior editor for POWER.
