Capstone Energy Plus, Inc. (CEPL)

Capstone Energy Plus, Inc., also styled Capstone Energy+, is an energy technology and services company based in Van Nuys, California. It was formerly known as Capstone Green Energy Holdings and, before that, as Capstone Turbine Corporation, and it adopted its current name in 2026.

The company is best known for its microturbine power systems, compact turbines that run on natural gas, biogas, hydrogen blends and other fuels to generate electricity on site. It provides customized microgrid solutions, combined heat and power systems, inverter-based microgrid technology and energy-as-a-service arrangements in which it owns and operates equipment at customer sites. It also offers equipment rentals, long-term service contracts and spare parts, and is developing on-site power solutions for data center and AI computing applications.