Capstone, Microgrids 4 AI Launch 800-Volt Microturbine to Power Data Centers

Capstone Green Energy and Microgrids 4 AI (MG4AI) unveiled their 800-volt direct-current (VDC) microturbine and engineered equipment package to power AI data center infrastructure. The Capstone 800 VDC natural gas-fired microturbine is designed to support MW-scale AI workloads and next-generation data center environments, leveraging its enhanced inverter-based power electronics technology.

“The evolving AI Factory design fundamentally challenges the energy delivery requirements and norms,” said Vince Canino, President & CEO of Capstone Green Energy. “Today’s AI racks already exceed 200 kW and are rapidly approaching 1 MW. Our 800 VDC microturbine is designed for this new reality, whilst building clean, reliable, redundant, and direct high-voltage power to the next generation of AI Factories.”

The 800 VDC unit can directly interface with the upcoming Kyber and Rubin Ultra platforms, and will eliminate multiple AC/DC conversion stages, reduce copper mass by up to 45%, and improve overall power efficiency by up to 5% compared to traditional 54V systems. The turbine will be integrated with MG4AI’s modular, liquid-cooled data center kits to establish grid-independent AI Power Blocks.

C800 microturbine | Image Credit: Capstone Green Energy

“The AI Factory demands infrastructure that is smarter, better, and faster,” said Ken Kajikawa, CEO of MG4AI. “By aligning Capstone’s 800 VDC microturbine along with its engineered equipment package of power, chillers, and BESS with MG4AI’s AI-ready compute architecture, we are now redefining how power becomes a handshake with compute. Our modular data center systems deliver up to 1 MW per rack which are future proofed for NVIDIA’s next four GPU generations.”

Each AI Power Block will supply power, liquid cooling, and computation in a unified, rapidly deployable system that may scale from edge deployments under 20 MW to AI giga-campuses exceeding 1 GW. This scalability enables support for sovereign, enterprise, and commercial AI environments.

Marcellus Shale Project

E-Finity Distributed Generation, a Capstone Green Energy distributor, obtained a follow-on order from a leading natural gas producer operating in the Marcellus Shale: a pre-commissioned skid with three C65 microturbines and E-Finity’s m-TIM controller, scheduled for commissioning in October 2025. The microturbines were selected to deliver reliable power, low emissions, and consistent performance in remote, off-grid locations where continuous power is vital.

Capstone’s pre-commissioned skid can be connected and fired up in the same day, eliminating on-site commissioning requirements. The design is also pre-engineered for scalability, allowing an additional C65 microturbine to be installed for future load growth. It will be powered by on-site, pipeline-derived natural gas which enables simple integration with the customer’s existing infrastructure.

These microturbine systems feature low maintenance requirements, a low emissions profile, and the ability to generate clean and reliable power in challenging environments, with this project satisfying the need for on-site power solutions that meet air quality and operational resilience requirements. The order expands Capstone Green Energy’s total microturbine fleet to over 150 units.

Janesville Plant

In May 2025, the City of Janesville, WI, ordered two C65 microturbines, one C200S microturbine, and a Vergent controller from Vergent Power, a regional distributor of Capstone Green Energy. With Capstone’s microturbines currently installed, Janesville placed a follow-up order to improve its wastewater treatment facility and increase on-site generation capacity to 460 kW.