The power consumption is a main cost factor at the STW Dresden-Kaditz. The biggest consumers are the waste water pumps and the blowers of the aeration plant.

A photovoltaic plant with an annual energy production of 145MWh was installed on the roof of the stormwater tanks in Dresden Kaditz.
A Kaplan-turbine in the outfall pipe uses the height difference of 5.6m and with an installed power of 138kW generates approximately 650MWh a year.