Dual-turbocharged GE engine cuts costs

The Jenbacher J624 combined heat and power (CHP) generator can produce 4.4MW of electricity − an increase of 10 per cent on the previous model and enough to power 10,000 European households.

Jenbacher J624 could save companies €100,000 a year

The old version used a turbocharger powered by exhaust gas to increase air pressure and so improve the engine’s output. This exhaust is now reused in a second turbocharger to increase the pressure further.

Through an increase of electrical efficiency by one per cent in ambient temperatures to 46.5 per cent, the new engine can save €50,000 (£41,000) a year in fuel costs.

In the hot and humid climates typically found in developing countries, this rises to 2.5 per cent increased efficiency and so could save companies who upgrade over €100,000 a year.

Two of GE Jenbacher’s biggest markets are Pakistan and Bangladesh, where textile factories often use multi-engine power plants in place of the countries’ unreliable energy infrastructure, so a company using 20 engines could save over €2m a year in fuel costs.