Evaluation of requirements for an interoperable flexibility platform for balancing, redispatch and intraday markets

Flexibility in a power system encompasses a broad range of heterogeneous products and their applications. Managing them well is essential for enabling a successful energy transition. This is a challenging task because of the complexity of having multiple stakeholders, products, systems, scenarios, etc., in addition to different flexibility applications with varying needs and technical ecosystems. The work presented in this paper focuses on three interoperable use cases of flexibility for balancing, congestion management, and intraday markets. It refines their requirements to model key functions in a flexibility platform, with a focus on balancing energy considering network restrictions for practical implementation. The developed model is complemented with business, high-level, and primary use cases that describe various processes at the appropriate level of abstraction. It identifies major classes of stakeholders along with their needs, expectations, relationships, and technical interfaces. Its usage of a shared visual language and framework for depicting system requirements, design, and architecture proved useful in improving communication across multidisciplinary teams and stakeholders. Improved communication reduces misconceptions and misinterpretations, allowing for greater collaboration.