The proposed project
The proposed closed-loop pumped-storage hydropower project will provide a stable source of cost-effective renewable energy, carbon-free peaking capacity, dispatchable load to balance renewable energy sources, and ancillary services for grid operators, while also conserving the water resources of the Kiamichi River. It has a capacity of up to 24 hours of continuous generation at 1,200MW.
The project will be composed of two primary features: the proposed pumped storage site and the associated transmission line. The proposed pumped storage site would be located entirely on private land in southeastern Oklahoma, within Pushmataha County, approximately 5 miles south of the town of Talihina along the Kiamichi River.
The proposed project features:
- upper reservoir dam and spillways (there is no dam across the Kiamichi River);
- upper, lower, and regulating reservoirs;
- upper and lower concrete intake/outlet structures;
- headrace and tailrace tunnels;
- an underground pumping station/powerhouse containing four power generating units;
- two pumping systems with associated piping at regulating reservoir;
- a 99.96-mile transmission line; and
- appurtenant facilities.
What is a closed-loop pumped-storage hydropower?
source: https://www.energy.gov/eere/water/pumped-storage-hydropower
How does pumped-storage hydropower work?
How does pumped-storage hydropower work?
Source: https://www.energy.gov/eere/water/pumped-storage-hydropower-animation