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Title: Increasing Revenue of Nuclear Power Plants With Thermal Storage

Abstract

Introducing large amounts of electricity produced from variable renewable energy sources such as wind and solar decreases wholesale electricity price while increasing the volatility of the market. These conditions drive the need for peak-load power generation, while regulation requirements fuel the push for flexible power generation. The increase of variable renewable energy in the market share, along with falling natural gas prices, makes nuclear power plants less competitive. Thermal storage is being considered to increase the nuclear power plant revenue. Thermal storage increases the flexibility of the nuclear plant system without sacrificing its efficiency. There are multiple opportunities to increase the nuclear power plant revenue, including increased capacity payments, arbitrage, and ancillary services. An economic analysis was performed to investigate the revenue increase of the system with thermal storage. The investment cost was assessed, and net present value was evaluated for the considered scenarios. Two system designs were considered in the analysis: a thermal storage system using the existing power conversion infrastructure and an integrated design with thermal storage fully incorporated into the reactor system design. The preliminary analysis showed that introducing a thermal storage system is profitable for some scenarios considered. Profitability depends significantly on the storage size, outputmore » flexibility, share of variable renewable energy, and market characteristics.« less

Authors:
 [1];  [2];  [3];  [2];  [3]
  1. Department of Nuclear, Plasma and Radiological Engineering, Univ. of Illinois at Urbana-Champaign, IL (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (US). Reactor and Nuclear Systems Division
  3. Yellowstone Energy, Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1632104
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Energy Resources Technology
Additional Journal Information:
Journal Volume: 142; Journal Issue: 4; Journal ID: ISSN 0195-0738
Publisher:
ASME
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Design, Nuclear power stations; Profitability; Solar energy; Storage; Thermal energy storage; Wind; Energy generation; Renewable energy; Economic analysis; Natural gas; Volatility

Citation Formats

Borowiec, Katarzyna, Wysocki, Aaron, Shaner, Samuel, Greenwood, Michael S., and Ellis, Matthew. Increasing Revenue of Nuclear Power Plants With Thermal Storage. United States: N. p., 2019. Web. https://doi.org/10.1115/1.4044800.
Borowiec, Katarzyna, Wysocki, Aaron, Shaner, Samuel, Greenwood, Michael S., & Ellis, Matthew. Increasing Revenue of Nuclear Power Plants With Thermal Storage. United States. https://doi.org/10.1115/1.4044800
Borowiec, Katarzyna, Wysocki, Aaron, Shaner, Samuel, Greenwood, Michael S., and Ellis, Matthew. Wed . "Increasing Revenue of Nuclear Power Plants With Thermal Storage". United States. https://doi.org/10.1115/1.4044800. https://www.osti.gov/servlets/purl/1632104.
@article{osti_1632104,
title = {Increasing Revenue of Nuclear Power Plants With Thermal Storage},
author = {Borowiec, Katarzyna and Wysocki, Aaron and Shaner, Samuel and Greenwood, Michael S. and Ellis, Matthew},
abstractNote = {Introducing large amounts of electricity produced from variable renewable energy sources such as wind and solar decreases wholesale electricity price while increasing the volatility of the market. These conditions drive the need for peak-load power generation, while regulation requirements fuel the push for flexible power generation. The increase of variable renewable energy in the market share, along with falling natural gas prices, makes nuclear power plants less competitive. Thermal storage is being considered to increase the nuclear power plant revenue. Thermal storage increases the flexibility of the nuclear plant system without sacrificing its efficiency. There are multiple opportunities to increase the nuclear power plant revenue, including increased capacity payments, arbitrage, and ancillary services. An economic analysis was performed to investigate the revenue increase of the system with thermal storage. The investment cost was assessed, and net present value was evaluated for the considered scenarios. Two system designs were considered in the analysis: a thermal storage system using the existing power conversion infrastructure and an integrated design with thermal storage fully incorporated into the reactor system design. The preliminary analysis showed that introducing a thermal storage system is profitable for some scenarios considered. Profitability depends significantly on the storage size, output flexibility, share of variable renewable energy, and market characteristics.},
doi = {10.1115/1.4044800},
journal = {Journal of Energy Resources Technology},
number = 4,
volume = 142,
place = {United States},
year = {2019},
month = {9}
}

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