The 39.12 MW HPP Arto-Blanca is the third in the chain of six hydroelectric power plants on the lower Sava River. It is a hydroelectric power plant of the run-of-the-river and reservoir type, with three vertical generating units with a combined rated discharge of 500 m3/s, five spillways and an average annual production output of 148 GWh.

HPP Arto-Blanca accounts for roughly one percent of the present annual electricity production in Slovenia, but will also provide peakload power and open up possibilities for selling ancillary services. This power plant is going to be fully automated, unmanned and remotely operated from the control centre.