The C500 HE is a fully-integrated power solution that combines microturbines with an Organic Rankine Cycle (ORC) waste heat to electricity generator to increase power and efficiency.

The system uses six C65 microturbines, directing their clean microturbine exhaust through an ORC to provide a total of 500kW net output with 37% electrical efficiency. The microturbines and ORC share common design features that deliver high reliability, reduce maintenance, and simplify installation. Both the microturbines and the ORC utilize:

  • Efficient high-speed permanent magnet generators
  • Oil-free, low-maintenance bearings (air bearings in the microturbines, magnetic bearings in the ORC)
  • Digital power electronics providing variable-speed generator operation and integral utility protective relay functions.

The Capstone microturbines have ultra-clean exhaust emissions and the ORC uses a non-ozone-depleting refrigerant, making the C500 an environmentally responsible solution for a variety of power generation applications that require high net fuel efficiency.