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August 28, 2021

TAS Texas Cooperative Chilled Water Storage System, US

By Carmen

The TAS Texas Cooperative Chilled Water Storage System is a 90,000kW energy storage project located in Jacksboro, Texas, US.

The thermal energy storage project uses chilled water as its storage technology. The project was announced in 2008 and was commissioned in 2009.

Description

The TAS Texas Cooperative Chilled Water Storage System is owned by Brazos Electric Cooperative (100%).

The key applications of the project are electric energy time shift, electric supply capacity, electric supply reserve capacity – spinning and ramping.

Contractors involved

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Brazos Electric Cooperative has delivered the project.

Additional information

In order to maintain the power design output of this generating plant in Texas during hot days, TAS Energy provided a “Turbine Inlet Chilling” retrofit in 2009. In 2008, the plant began design of a second 7FA-powered 2×1 turbine for the site, options including Turbine Inlet Chilling (TIC) to maximize the plant’s output were considered. Various solutions were discussed and studies concluded that on a hot summer day, evaporative coolers could only produce 560 MW, whereas TAS Energy’s Generation Storage TM solution could produce over 600 MW. It was decided that it was economical and beneficial to retrofit one existing unit and incorporate
TIC to the future unit as well.
A 6.1 MG Thermal Energy Storage (TES) tank designed & built by DN Tanks was integrated into the unit’s TIC system. The TES tank supplies chilled water for both combined cycle Units 1 & 2 and allows the plant operator to pull electricity from the grid at night-time hours (and pricing) to chill the water, and stored it for.

Methodology

All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.

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