Fundamental changes in the current energy grids, towards the so called smart grids, initiated a range of projects involving extensive deployment of metering and control devices into the grid infrastructure. Since in many countries, the choice of supportive information and communication technologies (ICT) for the grid devices still remains an open question, benchmarking tools aimed at predicting their behavior in the deployed solution play an essential role in the decision-making process. This paper presents a Prolog-based simulation environment, named Grid Mind, primarily intended for the very purpose. The tool was successfully used to generate simulation scenarios in several smart-grid related projects and became a self-standing simulation tool for the evaluation of information and communication technologies used to deliver lowvoltage metering and monitoring data. The tool is continuously evolving, aimed to become an integral part of the future energy grid design in the Czech Republic and beyond
