Front End Engineering Design Report

Hume, Scott Alexander

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DOE OSTI · 1602050

Front End Engineering Design Report

Hume, Scott Alexander

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Abstract

Energy storage is becoming an increasingly important component on modern power grids to ensure sufficient balancing capability for intermittent renewable power generations is available to maintain system reliability. Although energy storage has traditionally been provided by pumped storage hydroelectric systems, it is not possible to install these at every location and they can be expensive to construct. Lithium Ion batteries are increasingly being used to carry out energy storage grid services, however these can be expensive when specified over a few hours of capacity. An alternative way to store substantial energy is to use thermal energy storage (TES). This has been deployed on concentrated solar units using molten nitrate salts as a storage media. Again, the cost of the material can be prohibitive, thus lower cost alternative materials are being actively sought, such as sand, rocks and concrete. This project investigates the potential for Concrete Thermal Energy Storage (CTES) when used to directly store thermal energy from a thermal plant source. This report represents the initial Front-End Engineering Design (FEED) deliverables that are submitted for the Hazard and Operability (HAZOP) safety review for process validation.

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25 ENERGY STORAGE Thermal Energy Storage, Concrete, Pilot Plant, FEED

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Hume, Scott Alexander. 2020-02-28. Front End Engineering Design Report. https://www.osti.gov/biblio/1602050

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