BrightNight Breaks Ground on Pioneer Clean Energy Center in Yuma County

BrightNight hosted a groundbreaking ceremony on Feb. 11, 2026 in Yuma County to mark the Pioneer Clean Energy Center, drawing local officials, community leaders, project partners, and BrightNight leadership to the future site. The company described the facility as “a state-of-the-art 300-megawatt solar facility paired with 300 megawatts and 1,200 megawatt-hours of battery energy storage,” and called the event a formal recognition of the start of construction.

Technically, the project is being described across filings and local coverage as a 300 MW solar plant paired with a 300 MW / 1,200 MWh battery energy storage system. Cordelio Power, BrightNight’s joint-venture partner, described the asset on Nov. 4, 2025 as “a 300 MWac solar plant combined with a 300 MW / 1,200 MWh battery energy storage facility in Yuma, Arizona.” Enerdata added that BrightNight plans to develop a 230 kV generation-tie transmission line to connect the project to the grid.

BrightNight and partner statements tie Pioneer directly to customer and reliability goals for Arizona Public Service customers, saying the facility will deliver “more than 900,000 megawatt-hours of clean energy annually to support Arizona’s growing energy needs” and will strengthen grid resilience “in one of the state’s most constrained load pockets.” Enerdata and KYMA converted that annual output into household equivalents: Enerdata said the project is “enough to power about 77,000 homes and businesses,” while KYMA reported a 77,299 homes-and-businesses estimate.

Speakers at the ceremony framed the project as both an energy and economic asset. Martin Hermann, BrightNight’s chief executive officer, said Pioneer “reflects BrightNight’s commitment to delivering infrastructure at the scale and performance required to support reliability, economic growth, and long-term system resilience,” and added that “this project demonstrates how advanced clean energy and storage can work together to meet real-world utility needs while delivering meaningful benefits to local communities.” At the ceremony Hermann also noted the firm’s planning work: “We study, always, at the very beginning how electrons are flowing and how that will change moving forward, and we identified in 2020 this is a location that not just needs energy, but also capacity to keep the power grid resilient. This facility helps do that.”

BrightNight provided economic-impact figures in its press materials, saying Pioneer “will generate an estimated $83.3 million in local and state property tax revenue over its lifetime, including more than $42 million paid to the Arizona State Land Department K-12 Educational Trust.” KYMA coverage quoted Erik Ellis, BrightNight’s executive vice president of development, citing studies by Elliot D. Pollack & Company that “estimate the project will contribute $25 million directly to Yuma County. Those funds are expected to support first responders, schools, and other county services and programs.”

Timeline items remain to be reconciled in public records: Cordelio Power announced financial close on Nov. 4, 2025; Enerdata reports construction began in October 2025 and expects commercial operations in April 2027; BrightNight’s Feb. 11 release and ceremony materials framed the event as formally recognizing the start of construction. Local officials and the City of San Luis posted photos from the ceremony, with the City of San Luis noting, “The social-media post highlights that the project pairs utility-scale solar generation with advanced battery energy sto” in its announcement.