Maine Cogeneration, CHP Combined Heat and Power - Maine Renewable Alternative Energy

What is Cogeneration?


600 kW Steam/Turbine Generator
University in Maine
Packaged by TurboSteam

Cogeneration is simply using one energy source to produce two separate forms of energy. When burning a fuel results in the creation of sufficient heat, steam or other "waste" product, this energy can be harnessed and used to provide the energy for heating, cooling or operating machinery or electricity. Cogeneration can dramatically reduce costs and improve overall efficiency by as much as 70%.

Cogeneration is also known as combined heat and power (CHP). CHP represents a cost-effective way to lower operating costs and provide a reliable source of electric and thermal energy. In a correctly designed application, one of these forms of energy may be considered "free", since it is a byproduct of the production of the primary energy form.

Cogeneration is an ideal source of alternative energy, particularly because it:

  • Produces electricity, heating and cooling in a single process
  • Saves energy, cuts costs, reduces waste and improves the environment
  • Is a reliable and proven means of generating electricity, heating and cooling
  • Represents a clear solution to the challenge of achieving a sustainable energy future
  • Accounts for around 7% of total global power production, and more than 40% in some European countries.
  • Is local power that produces energy where it is needed.

Core to effectiveness of cogeneration is an appropriate turbine/generator set.

there are several different steam turbine technologies used in cogeneration applications:

dual turbine generator used in alternative energy cogeneration

Innovative dual turbine generator set used in alternative energy/cogeneration applications. Packaged by TurboSteam.

  • Single Stage
  • Multi Stage
  • Back Pressure
  • Extraction/Condensing
  • Condensing

Hurst Biomass Cogeneration System

hurst solid fuel cogeneration boiler

View as PDF (PDF Document)

There are two different generator technologies used in the cogeneration applications.

Induction - Induction generators are essentially induction motor and are excited by the utility to which they are interconnected. If the utility fails, an induction generator can not operate.

Synchronous - Synchronous generators are excited by their own excitor and can be operated in isolation from the utility or in parallel with it.

Can Biomass reduce your fuel budget? To find out, please contact the Biomass Energy experts at Thermal Systems, Inc. either by calling 207.883.8981 or by submitting a completed inquiry form.