What is ETC?

Electric Turbo Compounding (ETC) technology is our solution to the challenge of improving energy efficiency for the stationary power generation industry

What is ETC

Increased efficiency for the power generation industry

At Bowman, we believe there is a strong environmental and economic duty to ensure that, where reciprocating engines are used to generate power, fuel is consumed as efficiently as possible. Electric Turbo Compounding (ETC) technology is our solution to the challenge of improving energy efficiency for the stationary power generation industry.

The use of fossil fuel based power generation, particularly in developing economies, is predicted to continue for decades.  This is at odds with the global need to reduce carbon emissions, of which, a high percentage is produced by the power sector worldwide.

Our ETC products make gas and diesel-powered gensets work more cleanly and effectively, by recovering waste energy for the genset exhaust to improve power density and fuel efficiency. The technology is equally suited to new-build and retrofit applications, for engines in the 150kW-2MW range. Dependng on engine size, either a single or twin ETC system will be required – see below. We have also developed ETC products for much larger engines with a waste gate, such as the Wärtsilä 34SG, a 9MW gas engine. Read a case study.

ETC system range:

ETC 300

  • Single system for 150kW-400kW engines

Download the ETC 300 component specification

ETC 600

  • Single system for 300kW-600kW engines
  • Twin system for 500kW-1200kW engines

Download the ETC 600 component specification

ETC 1000

  • Single system for 600kW-1100kW engines
  • Twin system for 1100kW-2000kW engines

  Download the ETC 1000 component specification

ETC technology is proven on a wide range of engine types, including:

  • CAT 3516 TA
  • Cummins KTA50-G3
  • Cummins KTA50-G8
  • MAN 2842
  • MAN D2676
  • Mitsubishi 6R41
  • Scania DC 12
  • Volvo TAD1642
  • Wärtsilä W20V34SG
  • Wärtsilä W18V50SG

Watch our video to see how the system works, and why it is used by OEMs, IPPs and power rental companies worldwide

ETC applications and benefits

Engine and genset OEMs, IPPs and power rental companies integrate ETC technology with their products to deliver an enhanced offering to their customers, genset end-users who require power generation capacity.

  • Proven applications on a range of genset sizes
  • Suitable for open or containerised gensets
  • Enhanced offering for genset end-users
  • Increased competitive advantage
  • Reduced fuel consumption, between 4-7%
  • Fewer carbon emissions
  • Generate additional power, up to 10%
  • Rapid payback, even with low fuel prices
  • Over 700 systems sold worldwide
  • Proven reliability record
  • Over 15,000,000 running hours

Turbine Engine

ETC system specifications

Download the ETC system component specifications, or for more detailed information, please get in touch.