eSolar's Modular, Scalable Molten Salt Power Tower Reference Plant Design

Tyner, C.E.; Wasyluk, David T.

doi:10.1016/j.egypro.2014.03.165

Cited by 11 publications

(7 citation statements)

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“…10%. The overall solar to electric efficiency for a power tower with 15 hours storage was around 14.5%, slightly below the value of 15.8% predicted by Tyner and Wasyluk[58] for a power tower with 13 hours of…”

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confidence: 59%

A large-scale renewable electricity supply system by 2030: Solar, wind, energy efficiency, storage and inertia for the South West Interconnected System (SWIS) in Western Australia

et al. 2017

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An interactive web tool was created to simulate 100% renewable electricity supply scenarios for the SouthWest Interconnected System (SWIS) in the southwest of Western Australia. The SWIS is isolated from other grids and currently has no available hydropower. Hence it makes a good case study of how supply and demand might be balanced on an hour-by-hour basis and grid stability maintained without the benefit of energy import/export or pumped hydroelectric storage. The tool included regional models for wind and solar power, so that hypothetical power stations were not confined to sites with existing wind farms or solar power stations, or sites with measurements of wind speed and solar radiation. A generic model for solar thermal storage and simple models for energy efficiency, distributed battery storage and power to gas storage were also developed. Due to the urgency of climate change mitigation a rapid construction schedule of completion by 2030, rather than the more common target of 2050, was set. A scenario with high wind generation, and scenarios with varying levels of solar power, wind power, distributed battery storage, energy efficiency improvements and power to gas systems were considered. The battery storage system and PV arrays were configured to provide synthetic inertia to maintain grid stability (with a small loss in capacity for each), and existing synchronous generators were kept spinning with no fuel input, adding a small increase to the electrical load demand. The level of synthetic inertia provided by battery storage was estimated for each scenario. The results indicated that a balanced mix of solar PV, solar thermal, efficiency, and storage were the most feasible to be built on a rapid time scale. The required capacity and build rate of the generation and storage systems would be reduced if energy efficiency improvements were implemented on a more rapid schedule compared to the current global improvement rate. The scenario with very high

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confidence: 59%

A large-scale renewable electricity supply system by 2030: Solar, wind, energy efficiency, storage and inertia for the South West Interconnected System (SWIS) in Western Australia

et al. 2017

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“…A design completed by eSolar of a modular MS power tower plant that is comprised of anywhere from four to fourteen 50-MWt modules coupled through field piping to central storage and power block [11]. A single module could be used for a small power plant (10-15 MWe) or for desalination or enhanced oil recovery, perhaps even off grid.…”

Section: Worldwide Molten Salt Installationsmentioning

confidence: 99%

Molten Salts and Applications III: Worldwide Molten Salt Technology Developments in Energy Production and Storage

Ladkany¹,

Culbreth²,

Loyd³

2018

JEPE

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Supported by Office of Naval Research (ONR), this paper presents a survey of molten salt technology used in solar power storage. Excess energy from solar power stations and other baseline power production methods can be stored in molten salts (MS) in the 565°C range, therefore allowing the use of large containers to store energy for up to a week and generate eight hours of electricity or more to be used during peak demand hours, at night, or adverse weather conditions, depending on the container size. The technology could also be used to conserve the spin off energy in the grids from nuclear or coal power production. Real life examples of concentrating solar power (CSP) plants, both domestically and worldwide, are presented with details about the type of solar collection, capacity, and energy production. Commercial solar power stations have been constructed in the United States and overseas, particularly in Spain, with molten salt being considered for use in these facilities. Some facilities use a field of flat mirrors and collection towers while others use parabolic troughs.

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“…The use of low cost and stable HTM, innovative component design, and the increase in cycle efficiency provide a means to reduce component and system level costs associated with the CSP system compared to the current state-of-the-art of molten salt-based CSP plants. [4] This paper describes the system with a focus on the fluidized-bed (FB) heat exchanger and its integration with various power cycles. The SPR technology provides a potential pathway to achieve the levelized cost of electricity (LCOE) target of $0.06/kWh as set by the U.S. Department of Energy SunShot initiative.…”

Section: Introductionmentioning

confidence: 99%

Fluidized-bed Technology Enabling the Integration of High Temperature Solar Receiver CSP Systems with Steam and Advanced Power Cycles

Sakadjian

Maryamchik

et al. 2015

Energy Procedia

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Solar Particle Receivers (SPR) are under development to drive concentrating solar plants (CSP) towards higher operating temperatures to support higher efficiency power conversion cycles. The novel high temperature SPR-based CSP system uses solid particles as the heat transfer medium (HTM) in place of the more conventional fluids such as molten salt or steam used in current state-of-the-art CSP plants. The solar particle receiver (SPR) is designed to heat the HTM to temperatures of 800 °C or higher which is well above the operating temperatures of nitrate-based molten salt thermal energy storage (TES) systems. The solid particles also help overcome some of the other challenges associated with molten salt-based systems such as freezing, instability and degradation. The higher operating temperatures and use of low cost HTM and higher efficiency power cycles are geared towards reducing costs associated with CSP systems. This paper describes the SPR-based CSP system with a focus on the fluidized-bed (FB) heat exchanger and its integration with various power cycles. The SPR technology provides a potential pathway to achieving the levelized cost of electricity (LCOE) target of $0.06/kWh that has been set by the U.S. Department of Energy's SunShot initiative.

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eSolar's Modular, Scalable Molten Salt Power Tower Reference Plant Design

Cited by 11 publications

References 1 publication

A large-scale renewable electricity supply system by 2030: Solar, wind, energy efficiency, storage and inertia for the South West Interconnected System (SWIS) in Western Australia

A large-scale renewable electricity supply system by 2030: Solar, wind, energy efficiency, storage and inertia for the South West Interconnected System (SWIS) in Western Australia

Molten Salts and Applications III: Worldwide Molten Salt Technology Developments in Energy Production and Storage

Fluidized-bed Technology Enabling the Integration of High Temperature Solar Receiver CSP Systems with Steam and Advanced Power Cycles

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