A partnership announced in late July 2025 between Phinergy Ltd., an Israeli pioneer in aluminum-air technology, and San Jose, Calif.-based electrical contractor Rosendin Electric Inc., has resulted in a fossil-fuel-free alternative for on-premises, mission-critical and microgrid backup power.

This unique collaboration is expected to hasten adoption of zero-emission backup power solutions in a very energy-intensive sector by introducing a new paradigm. Using aluminum as a clean, energy-dense “fuel” instead of fossil fuels, Phinergy’s aluminum-air generator can produce zero-emission electricity without the need for conventional diesel generators. Able to meet data centers’ needs for resilience and other megawatt-scale applications’ needs for reliable performance, it can also handle increasing energy demands generated by artificial intelligence.

The two companies plan to introduce Phinergy’s aluminum-air generator solution to the U.S. market, where they hope to set a new standard in backup power by providing multiday resilience for mission-critical operations; zero-emission, on-demand power aligned with ESG and net-zero goals; and scalable deployment for hyperscale data centers and advanced microgrids.

This solution will leverage the aluminum industry and its supply chain for fast and easy adoption. Rosendin’s relationships with major data center operations and its ability to scale, combined with Phinergy’s breakthrough technology, make this a viable possibility to support A.I.-driven workloads, fast-shifting loads and decarbonization goals.

“Rosendin’s strong market presence and deep expertise in mission-critical infrastructure give us a clear path to scale and connect with the right customers,” said Emmanuel Levy, CEO of Phinergy. “By joining forces, we’re not just replacing diesel—we’re setting a new benchmark for clean, resilient power in the A.I. era.”

Bill Mazzetti, senior vice president of Rosendin, said that his company has spent the past six years examining on-premises power systems as alternates or enhancements to utility-provided power. “Our clients simply need more power, and without it, development stops dead,” he said. “This is a reply to the major expansion of data center and large loads, combined with a continuing demand for decarbonized power from owners and jurisdictions.”

Introduced to Phinergy three years ago by a mutual client, Rosendin saw the technology operating in Israel.

“We thought that their aluminum-air power generation technology would fit nicely and sensibly as both a part of a behind-the-meter microgrid system as well as an alternative to standby diesel generation in a decarbonizing power dynamic,” Mazzetti said.

Expressing excitement about developing and deploying this solution, he said the partners are currently concluding the engineering and mock-ups for the first-of-a-kind unit to be installed on a client site in mid-2026.