International construction arbitration is evolving as the technological, commercial and regulatory forces shaping the global shift to renewable energy also transform the disputes landscape. Traditional issues such as delay and disruption, defects, and variations endure, but they now sit alongside challenges arising from fragmented procurement structures, complex multi-contract interfaces, reliance on first-of-a-kind and proprietary technologies, and unprecedented volumes of digital project data. Supply chain volatility, including extended lead times, constrained original equipment manufacturer (OEM) capacity, limited alternatives for proprietary components and sharp price fluctuations, have created new delay and cost risks that increasingly surface in disputes. For more on the recent trends in renewable and energy transition projects, see News Analysis: The changing face of international construction arbitration in renewable and energy transition projects. Arbitration practice is adapting. Tribunals are increasingly required to navigate dense technical and digital evidence, dispute board enforcement issues, and jurisdictional problems created by multi-contract procurement models. Issues linked to third party funders, security for costs, and the overlap between