First Steps toward a Multi-Parameter Optimisation Tool for Floating Tidal Platforms – Assessment of an LCoE-Based Site Selection Methodology

Abstract

The aim of this paper is assess and alter the method of tidal stream site selection, so as to ensure deployments are commercially viable. This paper has demonstrated the inter-site variability of LCoE, and that deploying in higher flow speed locations is not necessarily favourable if the site is exposed to harsh environmental conditions, despite potentially having higher yield. Neglecting to investigate the impact of MET-Ocean characteristics can lead to underestimation of the associated costs of an exposed site by up to 48%. For a sheltered site, however, current methods of site assessment generally used by the tidal stream industry are acceptable. When comparing the two types of site, taking into account the effects of MET-Ocean conditions indicates that the LCoE of a sheltered low flow site can be 75% lower than an exposed higher flow site over a 20yr PLAT-I deployment