News
GRDA to discharge at Grand, Hudson
Feb 16, 2021
In response to a directive from the Southwest Power Pool (SPP), the electric balancing market for a 17-state region, the Grand River Dam Authority has begun added discharge of the Grand Lake conservation pool today, Tuesday February 16. It is anticipated that the elevation of Grand Lake will drop to 740 feet and perhaps further if additional discharge is needed.
This action is intended to provide for additional electric generation in the SPP footprint during this time of extreme and ongoing winter weather conditions.
Additionally, ongoing discharges at Robert S. Kerr Dam, per this directive, could result in a Lake Hudson elevation of 615 feet this evening if the Grand Lake discharge cannot be initiated prior to that time. Hudson’s level will be impacted by inflows from the Grand Lake discharge.
At noon on Tuesday, February 16:
- Grand Lake elevation was 741.94 feet.
- Nine (9) east gates were open, discharging 3,501 cubic feet per second (cfs) of water.
- Six (6) units were online at the Pensacola Dam, releasing 13,627 cfs of water through generation.
- Releases through generation and floodgates totaled 17,128 cfs.
- Lake Hudson elevation was 617.04 feet.
- Four (4) units were online at the Robert S. Kerr Dam, releasing 28,620 cfs of water through generation.
The public is advised that this reduction in reservoir elevations could impact boat docks located in shallow waters and could have other impacts, such as increased areas of navigation hazards.
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