| Description |
1 online resource (14 pages) : color illustrations. |
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text txt rdacontent |
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computer c rdamedia |
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online resource cr rdacarrier |
| Series |
Conference paper ; NREL/CP-5000-74933 |
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Conference paper (National Renewable Energy Laboratory (U.S.)) ; 5000-74933.
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| Note |
"February 2020." |
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"Presented at NAWEA/WindTech 2019, Amherst, Massachusetts, October 14-16, 2019"--Page 1 of cover. |
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"Funding provided by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Wind and Water Technologies Office"--Verso of title page. |
| Bibliography |
Includes bibliographical references (pages 13-14). |
| Funding |
DE-AC36-08GO28308 |
| Note |
Description based on online resource; title from PDF title page (NREL, viewed on August 4, 2020). |
| Contents |
1. Introduction -- 2. Methodology -- 3. ORBIT validation and application -- 4. Conclusion. |
| Summary |
This work describes the development of a process based and open source balance of system cost model which provides the capability to evaluate both existing and novel offshore wind technologies. Individual design and installation steps are represented with bottom-up engineering models that compute the times and costs associated with the process; furthermore, operational constraints are assigned to each process so that delays due to weather and presence of marine mammals may be accounted for in the overall project timeline. The model structure, assumptions, inputs, and results are vetted with industry partners and compared against actual projects for validation; installation times are shown to agree with real data with relative errors of less than 35\%. Case studies are presented to demonstrate the functionality of the model. First, individual vessel efficiencies are computed for varying numbers of installation vessels and weather time series to show the diminishing returns of more than two feeder barges. Then, array cable capital costs and installation times are determined for a representative project with different turbine sizes. This quantifies the cost benefit tradeoffs of decreasing number of turbines, increased turbine spacing, and fewer turbine terminations and shows a net cost savings. These results demonstrate that the BOS model features the accuracy, functionality, and accessibility to serve as the foundation for a wide range of analyses to identify cost reduction potentials for offshore wind energy in the United States. |
| Subject |
Offshore wind power plants -- Economic aspects -- United States.
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Renewable energy sources -- United States -- Costs.
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Centrales éoliennes en mer -- Aspect économique -- États-Unis.
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Énergies renouvelables -- États-Unis -- Coût.
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Renewable energy sources -- Costs
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United States https://id.oclc.org/worldcat/entity/E39PBJtxgQXMWqmjMjjwXRHgrq
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| Indexed Term |
offshore wind balance of system |
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process based engineering cost models |
| Added Author |
Nunemaker, Jake, author.
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National Renewable Energy Laboratory (U.S.), issuing body.
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United States. Department of Energy. Office of Energy Efficiency and Renewable Energy, sponsoring body.
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| Standard No. |
1601955 OSTI ID |
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0000-0002-0698-3816 |
| Gpo Item No. |
0430-P-04 (online) |
| Sudoc No. |
E 9.17:NREL/CP-5000-74933 |
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