Energy Storage Systems (ESS). Part 3-1: Planning and evaluation of the performance of energy storage systems. General specifications

This technical specification establishes general requirements for the planning and performance assessment of electric energy storage systems. It defines essential criteria to ensure that storage installations are designed effectively and operate reliably within electrical networks. The document outlines methodologies for evaluating system capabilities, including capacity utilization, efficiency metrics, and response characteristics under various operating conditions. It serves as a foundational reference for engineers and planners involved in the deployment of energy storage solutions, focusing on interoperability and safety. The text addresses key aspects such as system configuration, operational limits, and performance benchmarks required for successful integration. By providing a standardized framework, it facilitates consistent assessment practices across different project stages. The scope covers both standalone and grid-connected configurations, offering guidance on how to measure and verify system performance against defined targets. This specification aims to harmonize technical approaches, ensuring that storage units meet necessary quality and safety standards during their lifecycle. It does not cover specific installation procedures but rather the overarching principles for evaluation.