Association for Computing Machinery
Smart metering is an important component of smart grids. Detailed load profiles are available through smart metering at a high resolution. Load profiles allow inferring detailed information on the end user by non-intrusive load monitoring. Therefore, these load profiles need to be regarded as sensitive data, and treated with security and privacy in mind. The authors propose a method that allows conditional access to different resolution levels of the load data, allowing access on a \"Need-to-know\" basis only. For this purpose, a multi-resolution representation of the load data is created using the simple haar wavelet transform.