Windrose Technology and Terawatt Infrastructure have completed a series of interoperability tests at Terawatt’s facility in Rancho Dominguez, California, demonstrating Windrose’s dual gun charging capability delivering over 650 kW using two 350 kW chargers from Delta Electronics. The tests indicated the ability to charge a vehicle for a 240-mile range in about 40 minutes, supporting the needs of commercial electric fleets.
The partnership is also progressing on software integration to connect Windrose’s vehicle systems with Terawatt’s site and energy management platforms. This integration is intended to improve charging efficiency, increase vehicle uptime, and reduce total cost of ownership for fleet operators.
“This partnership is about more than performance metrics—it’s about delivering real-world solutions to the fleets driving the energy transition,” said Wen Han, founder, chairman, and CEO of Windrose Technology. “Together with Terawatt, we’re aligning vehicle and infrastructure platforms in a way that scales efficiently and delivers immediate value to customers.”
Windrose and Terawatt are collaborating on customer programs to support the electrification of heavy-duty fleets in the U.S. These include deployments at Terawatt’s charging hubs in Southern California and plans for long-haul charging sites along the I-10 corridor between Los Angeles and El Paso, Texas.
“Windrose builds the kind of vehicles that are going to define the future of freight,” said Neha Palmer, CEO of Terawatt. “By combining their trucks with our infrastructure, and sites designed for efficient charging with minimal operational disruption, including pull-through stalls for trailers, we are expanding electric vehicle charging options in Southern California and beyond. The deeper our collaboration goes—from power to software to site design—the better we serve our customers.”
Additional testing and customer pilot programs are planned through the summer, with deployments expected to increase in late 2025.