This deliverable, which is part of the Horizon 2020 OneNet project, outlines the alignment activities carried out in OneNet Task 3.4, focusing on integrating the proposed electricity market concepts with demonstrator findings and regulatory aspects. It includes a regulatory study on demand response in electricity markets and ancillary services, consultations within the project, and an external workshop. The study delves into three issues, which are currently attracting much debate: baselining of demand response, prequalification of flexiblity resources, and local market operation, providing insights from literature and OneNet demonstrator experiences. Choices in these areas impact simplicity, accuracy, and integrity. The consultations addressed market integration issues, while the external workshop gathered feedback from external stakeholders to refine proposed solutions and market designs. The document highlights ongoing developments in EU regulations and initiatives related to flexibility.This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 957739
