A team at Korean Advanced Institute of Technology (KAIST) has developed new forms of low cost, large-area nanogenerator technology using piezoelectric ceramic nanoparticles. This piezoelectric-effects-based nanogenerator technology that converts existing sources of nonpolluting energies into infinite electrical energy is drawing interest in the field. The research team has developed a nanocomposite-based nanogenerator that overcomes the restrictions that existed in previous nanogenerators and builds a simple, low-cost, and large-scale self-powered energy system. This will expand the feasibility of nanogenerator in consumer electronics, sensor networks and wearable clothes.