Engine power plants can at the same time provide electricity and heat or cold reaching a very high efficiency. This capability makes them attractive for industries needing heat or cold for their processes, for local buildings and also for district heating systems.

In the future energy system , cogeneration plants will take over an additional role as providers of grid flexibility via demand-side management: in peak electricity demand moments with high electricity prices, industry will find it attractive to reduce its own consumption and possibly sell part of its generated electricity to the grid. During low price periods, electrical heat pumps and boilers can be added to the engine cogeneration units to generate and store  heat.