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Romania: Reducing emissions with biogas production for electricity and thermal energy in Romania

Bio gas production silos© Aquaserv
Aquaserv has received funding from the EEA and Norway Grants through the Energy Programme in Romania for the purposes of reducing greenhouse gas emissions by using biogas production in electricity and thermal energy.

The project aims to increase the energy efficiency of water and wastewater infrastructure, increase energy efficiency in industrial processes and reduce carbon emissions. The project will lead to equivalent emission reduction per year: 1,215 tons.

About Aquaserv

Aquaserv S.A. is a public company working on water supply and sewerage services in Mures, Romania. The company conducted an audit which analysed all the energy carriers on a wastewater treatment plant. The results of the audit led to an application for the open call on Energy Efficiency under the Energy Programme funded by the Norway Grants in Romania.

The solution: a cogeneration unit

Aquaserv S.A. succeeded with its applications and, with funding from the Norway Grants, the project is now installing a new cogeneration unit. This will reduce the energy consumption, make financial savings in operational cost and introduce energy efficiency in industrial processes of water and wastewater sector.

The cogeneration unit will be fully equipped with gas turbines and electrical generators as well as with the automation and control system for its operating parameters. The energy will be used for the technological processes of the wastewater treatment plant.

The thermal and electrical energy are produced with lower emission values than if an internal combustion engine were to be used. When evacuating from the turbines, the hot exhaust gases can be used directly in the drying process of the sludge, without having a dangerous content of noxious gases


About biogas: Biogas can be processed to about 95% methane. When it is combusted, it still creates emissions of CO2, but since the biogas is derived from plants (which are responsible for removing CO2 from the atmosphere), the CO2 emisisons produced are climate-neutral as not much fosil carbon goes into the atmosphere. Therefore, there are clear benefits to capturing and employing the use of biogas.

Main results of the project

- Reduction of energy consumption: 6,016.03 MWh/year.

- CO2 equivalent emission reduction per year: 1,215 tons (equivalent of the emissions produced by 300 cars, running 25 000 km/year)

- Annual monetary saving from energy efficiency measures: 273,615 euro.

The Energy Programme in Romania

The project is supported by Norway through the Norway Grants. See more opportunities under the Energy Programme in Romania.

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