It is my understanding that the US Army Corps of Engineers has some hydro generation data on their various websites (divisions, districts). For example, there is real-time hydro-electric data generation for the Tulsa District located here: http://www.swt-wc.usace.army.mil/ops_hydropower/hydromainpage.html. However, other districts do not have this same data. Is there any reason why hydroelectric power generation is only reported in some districts but not others? What is a resource I can use to find real-time (and/or even historical) power generation data for other regions (besides the Tulsa area).
I have scoured every single USACE website for all the regions, have examined the various hydro-electric power administrations in the United States (BPA, TVA, SEPA, WEPA) to little avail. Only BPA contained real-time and historical data. I am especially interested in the southeastern part of the United States - states like TN, GA, AL, etc. Proxy generation (like river/lake levels) may also be useful, but I have not been able to find those aside for the Tulsa/BPA areas.
Are there any other resources for this type of data that I am looking for? Even if it is proprietary that would be fine.