NFD: A practical scheme to detect non-technical loss fraud in smart grid

Non-Technical Loss (NTL) fraud is a consistent problem harassing utility companies all over the world. Most of the previous researches on NTL depend fully on user behaviour monitoring, analysis, and feature extraction. In this paper, we propose a practical scheme, named NTL Fraud Detection (NFD), to detect NTL without knowing any extra information about customers. The proposed scheme differentiates tampered meters from normal meters using the approximated difference between the billing electricity and the actually consumed electricity.