Posters
Come meet the poster presenters to ask them questions and discuss their work
We would like to invite you to come and see the posters at our upcoming conference. The posters will showcase a diverse range of research topics, and will give delegates an opportunity to engage with the authors and learn more about their work. Whether you are a seasoned researcher or simply curious about the latest developments in your field, we believe that the posters will offer something of interest to everyone. So please join us at the conference and take advantage of this opportunity to learn and engage with your peers in industry and the academic community.
PO375: Negative Electricity Prices, Wind Farm Shutdowns and Regulation Changes: Impacts on Revenue, Yield Assessment, and Future Strategy
Ingrid Benga, Project Engineer, UL Solutions
Abstract
As renewable energy penetration increases across European power markets, the frequency and severity of negative electricity price events have risen, impacting wind farm operations, revenue, and grid stability. This study investigates the market and regulatory dynamics driving these trends, focusing on mechanisms, contractual structures, and policy changes affecting both onshore and offshore wind assets. Using six and a half years of data from Germany, Spain, Western Denmark, France, Belgium and the Netherlands, we quantify the frequency, duration, and impact of negative price events. The analysis includes case studies of several onshore wind farms in Europe, exploring event patterns, curtailment thresholds, and contractual exposure. We evaluate how regulatory frameworks such as Contracts for Difference (CfDs), state Power Obligation Contracts (POs) and Power Purchase Agreements (PPAs), Zero Cap PPAs mitigate the risk and consider upcoming reforms with country-specific effects. The study further examines how negative price shutdowns are treated in Operational and Energy Yield Assessments (OEYA and EYA), identifying methodological gaps. We propose approaches to better incorporate these events in future yield assessments, and outline forecasting, maintenance scheduling, and risk mitigation strategies, including hybridization through Battery Energy Storage Systems (BESS) and portfolio hedging. Our findings highlight the necessity for evolving yield assessment methods to account for increasingly frequent market-driven shutdowns, aligning performance expectations with emerging grid and market realities.
No recording available for this poster.
