Presentation Description: The US offshore wind industry has taken the significant step of relying entirely upon floating lidar systems as the basis for offshore wind energy yield assessments (EYAs). While the US onshore wind is carefully working towards the methods and caveats to assessing and accepting stand-alone lidar data for financeable ETAs, the neighboring offshore industry is banking billion-dollar projects on two floating lidar systems per lease area. This measurement approach, combined with the unique metocean environment, requires special attention and methods. In this presentation, Natural Power will build upon previous analyses with additional details on wind resource and energy yield methods through a case study of the Hudson North candidate offshore wind energy area. Natural Power will expand upon this work with explicit discussions of uncertainty, financing, and end-se applications of the energy yield products. NYSERDA deployed two validated Eolos floating lidar systems to investigate the candidate NY Bight wind energy areas as part of a multi-year public campaign. Natural Power has analyzed the data sets and developed long-term wind resource and energy estimates for a conceptual 1300 MW project utilizing finance-grade methods. We will present technical and commercial details relevant to the development and application of the energy yield results. This presentation will highlight the offshore-specific energy yield methods including array development and wakes, loss estimation, and uncertainty characterization. It will also highlight key commercial topics related to these analyses, including typical points of finance scrutiny and production correlations with load events.
1. Upon completion, the audience member will be familiar with methods for conducting offshore wind resource assessment with floating lidar systems, with a focus upon the long-term wind resource conditions in NY’s un-leased candidate offshore wind energy areas. The Presentation will highlight approaches that differ from onshore wind methods or require special attention based upon the measurement system and environment. Key areas of risk and sources of uncertainty will also be presented.
2. Upon completion, the audience member will have been introduced to the offshore wind energy yield estimation processes, and how they differ in key areas from onshore methods. Key topics such as turbine characteristics, array development, wake effects, technical loss estimation and uncertainty characterization will be highlighted.
3. Upon completion, the audience member will have been introduced to (and invited to discuss) the end use applications of energy yield estimations, including project financing support (and typical points of scrutiny), interconnection analyses, and regional portfolio effects.