Selecting optimum locations for co-located wave and wind energy farms. Part II: A case study

Abstract

The shadow effect a b s t r a c t Combined energy systems present an opportunity to enhance the competitiveness of renewables and overcome other challenges of these novel renewables by realising the synergies between them. Among the different possibilities for combined systems, this work focuses on wave and wind co-located farms with the aim of assessing their benefits relative to standalone wind farms. To this end we estimate the energy production, investigate the power smoothing and shadow effect, and quantify the reduction in downtime achieved by the co-located farm through a case study off the Danish coast -a promising area for co-located farms based on the available resource and other considerations including technical constraints. The analysis is carried out based on hindcast data and observations extending from 2005 to 2015, and by means of state-of-the-art numerical models of the wind and wave fields -WAsP and SWAN, respectively. It is found that the energy yield per unit area with the combined wave-wind farm increases by 3.4% relative to a standalone wind farm, the downtime periods decrease by 58% and the power output variability reduces by 12.5%. Moreover, the capital and operational expenditures (CAPEX and OPEX, respectively) would also be significantly reduced thanks to the synergies realised through the combination of wind and wave power.

A Novel Hybrid Wind-Wave Energy Converter for Jacket-Frame Substructures

“…At the moment of writing, there are only a few scientific publications dealing with hybrid systems [25][26][27][28], with most of the previous work around the wider group of combined wind-wave systems [29]. The characterisation of the combined resource together with the study of the potential combination of both technologies has been studied by [30][31][32]-e.g., through the co-location feasibility index [33,34]. The effects of the temporal correlation of both wind and wave resources on the combined power output and its grid integration have been studied by [35][36][37][38][39][40][41][42][43].…”

Connecting research infrastructures, scientific and sectorial networks to support integrated management of Mediterranean coastal and rural areas

“…The design and implementation of renewable energy sources in coastal areas could also be supported by data from some European RIs, such as offshore wind and wave energy resources, which can be evaluated by means of the EMODnet wind farm siting service, and bathymetric, wave and wind data (Astariz et al 2015, Astariz and Iglesias 2016, Gomariz-Castillo et al 2017.…”

Assessment of renewable energy resources in Iran; with a focus on wave and tidal energy

“…For their part, waves are produced by winds acting on the water surface. Wave and tidal energy contain the highest energy density among clean energy resources [38] and are among the most promising forms of renewable energy, providing a persistent, environmentally friendly source of power [38][39][40][41][42]. Wave power is proportional to the square of the amplitude and to the period of the motion.…”