Bowman Power is delighted to report its first 1 GWh turbogenerator system. The system, originally supplied in early 2010, has now run for over 33,000 hours and generated over 1 GWh of electricity from biogas. This is enough energy to power about 250 homes for a year, and has a value to the customer of approximately £150,000; over 700% of the cost of the Bowman system! The system continues to run faultlessly, despite having rotated almost 90 billion times in its life so far.

Dr Toby King, Chief Executive Officer, commented: “We are delighted with the exceptional levels of product reliability and performance now being achieved by our systems. It is highly satisfying to see our customers experiencing such strong financial returns. We now have over 500 systems in the field, and over 7 million running hours accumulated.”

The 7 million hours of commercial operation across the fleet of Bowman Turbogenerator products represent around 135GWh of free energy, enough to power 33,000 homes for a year. Currently Bowman technology is available in the 200-2000kW engine range, on a variety of diesel and gas engines including Cummins, Caterpillar, Wartsila, MAN, Scania, Mitsubishi, and Volvo. A significant proportion of these units have achieved well over 20,000 hours of running with only routine inspections and the occasional oil change. Many have been running for more than 99% of the time since they were installed.


What Does 7 Million Operating Hours Mean?

When running a Cummins KTA50-G3 fitted with a Bowman Turbogenerator, customers save up to 8% on fuel consumption. Running at full load for 8,300 hours in a year, customers can reduce diesel fuel consumption by 155,000 litres while generating 400 metric tonnes less of CO2.

The accumulation of 7 million operating hours on the Bowman products is roughly equivalent to saving 130 million litres of diesel and generating 336,000 metric tonnes less of CO2.

According to EPA calculators, generating 336,000 metric tonnes less of CO2 is equivalent to 70,000 passenger vehicles not running on the road for a year or the Carbon sequestered annually from 275,000 acres of forest.