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Title: Analysis on the Influence of an Energy Storage System and Its Impact to the Grid for a Wave Energy Converter: Preprint

Abstract

This paper presents an analysis on the cost of and how a battery storage system can be used to further reduce the variation of power generated from the wave energy converter (WEC) due to the fluctuating nature of waves and its impact to the grid. The electrical power output from WEC-Sim simulations for the six sea states used in the Wave Energy Prize was analyzed to compute the peak power and power time history. The results were used to evaluate the battery storage capacity that is needed for a WEC system to provide reasonable power flow to the grid and estimate its cost based on the latest cost information for battery technologies published by the U.S. Energy Information Administration. Finally, a preliminary grid integration analysis was performed to demonstrate how WEC-generated power would contribute to a small island electricity system. As shown in the study, the instantaneous peak power is the primary cost driver for the battery storage and the power take-off system, and reducing the power fluctuations is essential for reducing the overall levelized cost of energy (LCOE). The power flow variation from WECs can be significantly reduced using battery storage without adding significant overall system costs, and themore » implementation of battery storage is essential for grid integration applications. There may also be additional opportunities to further investigate energy storage technologies that are specific to WEC applications to reduce these costs even further.« less

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
OSTI Identifier:
1547235
Report Number(s):
NREL/CP-5000-73332
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the ASME 2019 38th Annual Conference on Ocean, Offshore, and Arctic Engineering, 9-14 June 2019, Glasgow, Scotland
Country of Publication:
United States
Language:
English
Subject:
16 TIDAL AND WAVE POWER; wave energy converter; WEC; batter storage; power take-off; PTO; grid system analysis

Citation Formats

Stefek, Jeremy C, Bain, Dominique, Yu, Yi-Hsiang, Jenne, Dale S, and Stark, Gregory B. Analysis on the Influence of an Energy Storage System and Its Impact to the Grid for a Wave Energy Converter: Preprint. United States: N. p., 2019. Web.
Stefek, Jeremy C, Bain, Dominique, Yu, Yi-Hsiang, Jenne, Dale S, & Stark, Gregory B. Analysis on the Influence of an Energy Storage System and Its Impact to the Grid for a Wave Energy Converter: Preprint. United States.
Stefek, Jeremy C, Bain, Dominique, Yu, Yi-Hsiang, Jenne, Dale S, and Stark, Gregory B. Tue . "Analysis on the Influence of an Energy Storage System and Its Impact to the Grid for a Wave Energy Converter: Preprint". United States. https://www.osti.gov/servlets/purl/1547235.
@article{osti_1547235,
title = {Analysis on the Influence of an Energy Storage System and Its Impact to the Grid for a Wave Energy Converter: Preprint},
author = {Stefek, Jeremy C and Bain, Dominique and Yu, Yi-Hsiang and Jenne, Dale S and Stark, Gregory B},
abstractNote = {This paper presents an analysis on the cost of and how a battery storage system can be used to further reduce the variation of power generated from the wave energy converter (WEC) due to the fluctuating nature of waves and its impact to the grid. The electrical power output from WEC-Sim simulations for the six sea states used in the Wave Energy Prize was analyzed to compute the peak power and power time history. The results were used to evaluate the battery storage capacity that is needed for a WEC system to provide reasonable power flow to the grid and estimate its cost based on the latest cost information for battery technologies published by the U.S. Energy Information Administration. Finally, a preliminary grid integration analysis was performed to demonstrate how WEC-generated power would contribute to a small island electricity system. As shown in the study, the instantaneous peak power is the primary cost driver for the battery storage and the power take-off system, and reducing the power fluctuations is essential for reducing the overall levelized cost of energy (LCOE). The power flow variation from WECs can be significantly reduced using battery storage without adding significant overall system costs, and the implementation of battery storage is essential for grid integration applications. There may also be additional opportunities to further investigate energy storage technologies that are specific to WEC applications to reduce these costs even further.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}

Conference:
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