The Ghana Grid Company (GRIDCo), which announced the shutdown, said it is to allow the operators of the facility to undertake mandatory inspection and maintenance.
The shutdown is expected to last for about two weeks.
Consequently, gas flow from the Atuabo Gas Processing plant to the Aboaze thermal enclave has been curtailed and expected to commence upon resumption of production from the FPSO, the statement signed by GRIDCo CEO William Amuna, added.
In a related development, gas flow from the West African Gas Pipeline Company (WAPCo) pipeline has reduced to only 6mscf from the contracted volume of 120mscf resulting from vandalism on some pipelines in Nigeria.
As a result of this, engineers have commenced the process of converting all dual fuel thermal plants to run on Light Crude Oil to mitigate the challenge emanating from the setback.
The conversion process, which involves cleaning of fuel nozzles and other preparatory works, could take a couple of days to complete.
During this period, the transmission system may experience some challenges, thereby affecting power supply stability.
GRIDCo said it wishes to use this opportunity to assure the general public that engineers are working around the clock to bring supply to normalcy as soon as possible.