This research project aims to develop a graphene nanoplatelets (GNPs) self-sensing structural health monitoring (SHM) system for adhesively bonded joints of fibre-reinforced plastics (FRP). Upon addition of GNPs, the epoxy adhesive becomes electrically conductive. Damage of the GNPs reinforced adhesive layer can be detected by measuring the change of electric signal using Arduino microcontroller. A low power Bluetooth wireless communication system will transmit the structural health signal to a computer. This system can monitor blades at the joints, which can dramatically reduce operational costs, increase reliability and sustainability of turbines.