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Fishteck, while I agree with and like your thoughts about numerous factors possibly contributing to flow/level changes, the fact remains that with more wind generation being added to the Alberta electric system, Power Pool price volatility will increase, which will increase the financial incentive for TransAlta to use these hydro units to respond to that price volatility. This will in turn translate into more flow/level fluctuations. The fact that certain Bow system hydro PPA's are expiring in 2020 (giving TransAlta more latitude in terms of using these generators more aggressively to respond to Pool Price, for their own account/profit) won't help either.

Bcubed - Rather than just criticize, maybe you need to rationalize what the reason for the drop could be or phone AEP / TransAlta for an explanation: A drop in Bearspaw Reservoir storage levels - could have generated the need to fill. Standard operation proceedures accommodate a 15 CMS movement of flows up or down - the equipment is not sensitive enough to make finer adjustments. The drop and rise in flows are within these objectives and meet my statement. Possibly a malfunction at the dam Possibly a demand by governments to drop the river levels to remove or service instream infrastructure downstream. Go to the AEP Bearspaw flow charts for more accurate information on the release of water within the system. Calgary data is indicative of flows through Calgary centre but are compromised by local runoff. For a more accurate assessment of TransAlta's operations look at the upstream flow recording stations.

Wire bite tippet after a morning of topwater pike fishing: https://photos.app.goo.gl/wb9N8Dy5yodYS8uu5