The Thunder Wolf Solar Park – Battery Energy Storage System is a 100,000kW energy storage project located in Pueblo, Colorado, US.

The project was announced in 2018 and will be commissioned in 2022.


The Thunder Wolf Solar Park – Battery Energy Storage System is owned by Xcel Energy (100%).

The key applications of the project are renewables capacity firming and renewables energy time shift.

Contractors involved

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Xcel Energy is the owner of Thunder Wolf Solar Park – Battery Energy Storage System.

Additional information

The project is a part of Xcel Energy’s $2.5 billion Colorado Energy Plan, which calls for phasing out 660 MW of coal-fired capacity, acquisition of two gas-fired facilities and installation of 1,000 MW of wind, 700 MW of solar and 275 MW of battery storage, all by 2022.


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.