Profitable Production of Stable Electrical Power Using Wind-battery Hybrid Power Systems: A Case Study from Mt. Taegi, South Korea

In this study, wind-battery hybrid power systems are designed, evaluated, and optimized for regular supply of electrical power at a designated minimum load level with no shortage. Our simulation uses lead-acid batteries and vanadium redox flow batteries (VRBs) for storage, and utilizes hourly wind s...

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Bibliographic Details
Published in:International journal of precision engineering and manufacturing-green technology 2019-10, Vol.6 (5), p.919-930
Main Authors: Park, Sangwook, Han, Gwon Deok, Koo, Junmo, Choi, Hyung Jong, Shim, Joon Hyung
Format: Article
Language:English
Subjects:
Alternative energy sources
Capital costs
Climate change
Colloiding
Commercialization
Design
Economics
Electric power
Electrical loads
Electricity
Electricity distribution
Energy consumption
Energy conversion
Hybrid systems
International agreements
Lead acid batteries
Low cost
Observatories
Offshore
Optimization
Photovoltaic cells
Power supply
Profitability
Quantum dots
Rechargeable batteries
Renewable resources
Simulation
Solar cells
Suppliers
Thin films
Turbines
Vanadium
Wind measurement
Wind power
Wind speed
Wind turbines
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Summary:In this study, wind-battery hybrid power systems are designed, evaluated, and optimized for regular supply of electrical power at a designated minimum load level with no shortage. Our simulation uses lead-acid batteries and vanadium redox flow batteries (VRBs) for storage, and utilizes hourly wind speed data measured in 2012 at Mt. Taegi in South Korea. Twenty Vestas V80 wind turbines, each rated at 2 MW, are used as power generators, on the basis of an actual wind turbine project recently installed at Mt. Taegi. Sale to the main grid of electricity generated in excess of the minimum load offset the initial capital costs for installation of the wind turbines and batteries. Results show that the optimized wind-VRB hybrid system can supply more than 9 MW of regular electrical power at no cost. Even higher levels of production are profitable with sale of the wind-generated electricity directly to a demand site at a price greater than the price of sales to the main grid. A reduction in the VRB electrolyte costs and an increase in carbon taxes can also increase profitability.
ISSN:2288-6206
2198-0810
DOI:10.1007/s40684-019-00037-0