The construction of the biogas plant NTC Gaj d.o.o. in Gaj near Lipik in the Požega-Slavonia County was completed, for which the company Prostor EKO d.o.o. prepared project documentation and performed expert supervision over the construction.

The biogas plant has a capacity of 2 MW and consists of several buildings technologically connected into one functional unit. Within the biogas plant, a system for filling and dosing substrates, two fermenters and post-fermenters with gas feeders, two horizontal silos, separators and CHP installations with auxiliary buildings, a weighbridge and a substation were built.