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.
On 9 April at 17:15, we’ll also hold the main poster session and distinguish the 7 best posters of this year’s edition with our traditional Poster Awards Ceremony. Join us at the poster area to cheer and meet the laureates, and enjoy some drinks with all poster presenters!
We look forward to seeing you there!
PO129: A new global, consistent and validated approach to Wind Speed Inter-Annual Variability calculation.
Neil Atkinson, Principal Specialist, Analysis Services, K2 Management
Abstract
Wind Speed Inter-Annual-Variability (IAV) is a key component of long-term energy yield analysis. IAV magnitude can have a significant impact on the P90 energy yield value which is standardly used in project financing. So, incorrectly specifying this value could lead to nasty surprises in financing and later when the wind farm is operating. As shown during this presentation, the value of IAV can vary significantly across regions, so its calculation for a specific location requires careful consideration. Despite the significance and complexity of IAV, it is common for generalised values or relatively simplistic calculations using a single reference source or reanalysis data node to be applied. This introduces the possibility of significant error. Here we present a very comprehensive consideration of ECMWF ERA 5 data alongside many carefully curated ground-based measured datasets to develop and validate a new, reliable and globally consistent method to calculate IAV. Crucially the presented method is straightforward to apply. Both ERA5 and ground-based measurements are considered because although ERA5 has global coverage and represents a long historical period it is not directly comparable to cup anemometer measurements. Cup anemometers are measured at a specific location, they reflect local effects and closely represent the conditions experienced by a wind farm. However, using ground-based measurements alone would leave doubts over consistency and representativeness. Additionally, particularly for developing wind markets, consistent ground-based measurements are available only in a very limited number of locations. The volume and global spread of the data considered here alongside the comprehensive level of comparison is unparalleled. As a result, the practically applicable IAV calculation method derived represents an innovative contribution to industry knowledge in the field of energy yield assessment uncertainty.
No recording available for this poster.
