repowering with engine upgrade based on wood gasSince 2014, a large power plant with 10 units rated at 45 kWel each has been in operation in Jaunjelgava, Latvia. The energy system consists of wood gasifiers and wood gas CHP units, which are connected in a cascade. In 2018, the 5.7-litre CHP engines were converted from 1,500 rpm to 3,000 rpm. This enables an increase output from 45 to 54 kWel to be achieved.