There has been an explosion at the Aboadze Thermal plant, in Takoradi Friday morning.The explosion was said to have occurred at the GRIDCO switch station but there was no fire, a source confirmed to Joy FM’s Western Region correspondent Kweku Owusu Peprah.Technical service personnel are still investigating the cause of the fire, with personnel of the Fire Service also on standby to avert any fire outbreak, the source added.The source said the explosion did not cause any severe damage to the plants and should not affect power supply to the country.The Aboadze Plant started operation in 1997 by the Volta River Authority to complement the existing Hydro Plant at Akosombo and Kpong.