A Guide to Implementing Concentrating Solar Power in Production Cost Models

Jorgenson, Jennie; O’Connell, Matthew; Denholm, Paul; Martinek, Janna; Mehos, Mark

doi:10.2172/1489331

Cited by 6 publications

(5 citation statements)

References 24 publications

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“…We follow a similar general methodology for incorporating CSP plants in PLEXOS as that described in Refs. [64,65], but increase the level of detail in the implementation and update operational characteristics to describe the CSP-PTES or PTES systems. The model is built on an algorithm in PLEXOS generically designed for pumped-hydro systems, and is customized for the CSP-PTES or standalone PTES system via customized constraints, decision variables, and constrained sets of operational units designed to capture characteristics of the CSP-PTES system that are not easily described within the commercial software package.…”

Section: Subtask 51: Improve Grid Analysis Modelsmentioning

confidence: 99%

Integrated Heat Pump Thermal Storage and Power Cycle for CSP (Final Technical Report)

McTigue

Farres-Antunez

White

et al. 2022

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Pumped thermal energy storage (PTES) is a storage system that stores electricity in thermal reservoirs. In this project, methods of integrating PTES with concentrating solar power (CSP) systems were investigated and their feasibility evaluated. Hybrid "solar-PTES" devices can provide both flexible renewable power generation as well as a variety of electricity storage services.Techno-economic models of PTES and solar-PTES were developed and used to assess their performance, cost, and commercial viability. Systems were optimized using multi-objective optimization techniques. The value that these storage devices provide to the grid was estimated using production cost modeling.Key advances made in this project include the development of detailed techno-economic models that improve state-of-the-art assessments of these technologies. Off-design models were developed and used in grid-analysis models. This work describes for the first time how PTES and solar-PTES behave over a range of operating points and assesses the value that these systems can provide to the electrical grid. Feedback was obtained from experts in the field, which clarified key technological and economic barriers that must be addressed to improve the feasibility of these devices.Several PTES and solar-PTES systems were investigated, using a variety of power cycles, working fluids, and storage fluids. The main technologies discussed in this report are (1) a PTES system that uses an ideal-gas Joule-Brayton cycle with nitrate molten salt storage (2) a solar-PTES system where an existing CSP plant is retrofitted with a Joule-Brayton heat pump that can "top up" the shared molten salt storage. Other cycles that use supercritical CO2 are also discussed and evaluated.Simple thermodynamic models were first developed of a variety of PTES and solar-PTES concepts. Results were used to determine which systems were the most promising and merited further research. More detailed techno-economic models were then built. The technical models captured the performance of each component in the system. In particular, quality representations of heat exchangers were required, and the models were successfully validated against experimental results taken from the literature. The off-design performance of each component was modeled which enabled evaluation of PTES and solar-PTES performance at variable part load and ambient temperature. The system capital cost and levelized cost of storage (LCOS) were estimated by obtaining cost correlations for each component from the literature. Several correlations were used for each component, which enabled the use of a Monte-Carlo technique to calculate the likely cost and its uncertainty. This analysis emphasized the importance of heat exchanger design on the system performance, and high values of effectiveness (over 90%) are required to achieve reasonable round-trip efficiencies. It was found that this high effectiveness also minimized the lifetime cost (LCOS).The techno-economic models were integrated with a stochastic multi-objective opt...

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Section: Subtask 51: Improve Grid Analysis Modelsmentioning

confidence: 99%

Integrated Heat Pump Thermal Storage and Power Cycle for CSP (Final Technical Report)

McTigue

Farres-Antunez

White

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…This configuration removes several of the degrees of freedom of operation and is easier to implement. It also shares many similarities with concentrating solar power with thermal energy storage (CSP-TES), and therefore can be implemented by adapting existing model formulations for CSP-TES if available (Jorgenson et al 2018).…”

Section: Pv-bes Hybridsmentioning

confidence: 99%

“…Our implementation of PV-BES hybrids builds on previous work modifying PCMs to represent CSP-TES systems (Jorgenson et al 2018;2013;Mehos et al 2015). To include PV-BES using Equation 1, the simulation object must be able to (a) generate a time-series flow of energy from the PV to BES, PV to the grid, BES to the grid, and grid to the BES, and (b) optimize these flows to minimize costs.…”

Section: Pv-storage Hybrid Production Cost Modelingmentioning

confidence: 99%

“…PCMs optimize the operation of a new resource along with all the existing generators to minimize the total system variable operating (production) cost. The benefits of a new resource are then measured in terms of a reduction in production cost relative to an alternative mix of resources that does not include the added generator (Jorgenson et al 2018). PCMs are in important tool used by utilities and other power system planners to develop and analyze resource plans.…”

Section: Introductionmentioning

confidence: 99%

“…Our example uses the PLEXOS commercial PCM and objects and constraints that already exist in the tool. There can be multiple techniques to implement a PV-BES in a PCM software, and in this paper, we present an approach using the storage-generator topology, which is similar to the approach used for implementing CSP-TES (Jorgenson et al 2018).…”

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confidence: 99%

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Evaluating Utility-Scale PV-Battery Hybrids in an Operational Model for the Bulk Power System

Durvasulu

Murphy

Denholm

2021

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Systems that combine solar photovoltaic and battery energy storage technologies (PV-BES) are increasingly being proposed for, and deployed on, the bulk power system. The operation and value of PV-BES systems have been extensively studied from the perspective of project developers through analyses that maximize plant-level revenue. However, PV-BES hybrids' operational characteristics have seldom been studied from the perspective of bulk power system operators, who seek to optimize the performance of a suite of generation and storage assets that are connected via the transmission network.

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Dispatch optimization of concentrating solar power with utility-scale photovoltaics

et al. 2019

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A Guide to Implementing Concentrating Solar Power in Production Cost Models

Abstract: Department of Energy (DOE) reports produced after 1991 and a growing number of pre-1991 documents are available free via www.OSTI.gov.

Cited by 6 publications

References 24 publications

Integrated Heat Pump Thermal Storage and Power Cycle for CSP (Final Technical Report)

Integrated Heat Pump Thermal Storage and Power Cycle for CSP (Final Technical Report)

Evaluating Utility-Scale PV-Battery Hybrids in an Operational Model for the Bulk Power System

Dispatch optimization of concentrating solar power with utility-scale photovoltaics

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