A biological sludge treatment process takes place at the plant. While treating the sludge, biogas is formed that is used as fuel for the gas turbines at the treatment plant’s power plant. There are two gas turbines at the treatment plant having a total output of 2.5 MW, which produce about one-half of the energy consumption of the treatment plant The heat from the gas turbines is used as a source of energy for heating the sludge in the biological reactors. A large NIS $5 million project was recently executed to install a diesel-fired emergency generator with a total output of 1800 kWh. The new generator, which was recently installed at the treatment plant together with the two existing biogas turbines, will support an uninterrupted supply of electricity, pumping of wastewater and its purification even during an emergency. The new project will support flexibility in the operation of the diesel engine and gas turbine and save money in treatment plant operations. The Haifa Wastewater Treatment Plant was the first in Israel to exploit methane gas in order to produce energy for internal consumption. Operation of the biogas turbines will save about NIS 7 million annually and is an environmentally-friendly project that constitutes part of the complete cycle in the wastewater treatment process producing effluents for reuse in agriculture and electricity from the gas for internal consumption.