Sparkplug
-
Posts
177 -
Joined
-
Last visited
-
Days Won
7
Content Type
Profiles
Forums
Events
Store
Posts posted by Sparkplug
-
-
On 10/4/2019 at 5:40 PM, fishteck said:
Sparkplug, Although your viewpoint has been expressed to me by others with far more knowledge of the pricing model than me. But I've yet to find any information that would suggest that hydro power generation will increase on the Bow River once the PPP agreements are discontinued. The limiting factor is the water resource upstream and licensing agreements downstream. Under the existing federal agreements hydropeaking is the only way power can be generated, by way of storing water capacity for a proportion of the day to give sufficient reserve to operate the electrical turbines. This usually takes place when peak price revenues can be achieved. TransAlta has told me when asked if the system could be switched over to "run-of-the-river" hydro power generation on both the Bow and Kananaskis rivers that the water reserves will not allow it. In other words the limiting factor is water supply.
If you look at the AEP stream flow website and review the storage capacity summaries across the Bow River Basin you will see the majority of upstream storage is currently at 85 to 95 % full. In the spring this will drop to less than 50% in some reservoirs. This suggests to me that the current hydro-power generation is close to maximum. The one exception is the AEP Flood Mitigation Operational Model put in place from April to July when Ghost hydro is take off line when the reservoir is emptied.
Interestingly, I have started to look at the impact of the proposals for one of three new dam options upstream of Calgary, at either Morley, Ghost or Glenbow. The Ghost upgrade, whereby a new dam and spillway is installed down stream of the existing dam looks to be the best option. It also offers the opportunity to stop hydropeaking and possibly elimination power generation at that site all together. But still the hydrologists believe power hydro power generations will offset the cost of the new dam to some degree.
I find it difficult to believe that a new dam could ever be built on the Bow River to protect Calgary against flooding. The proposals as they stand give little relief in stream flow. There is a need for a fresh look at the report generated by the Bow River Water Working Group who put the recommendations together for the three-dam options. Decommissioning all power generation on the Bow River and using the existing storage capacity to offset floods and maintain constant flows where at all possible would make far more sense. Only time will tell!
Fishteck, good note. There is no suggestion that the total amount of "hydro power generation", i.e., MWh of electricity generated, will increase upon PPA expiry. Rather, once the PPA's expire and the units are more fully under TransAlta's operational/commercial control, it is expected that volatility in flows will increase - i.e., more jacking around with the operation of these units in response to the hourly power pool price,which means more short-term volatility in flows (i.e., daily, or over several days). Your point about the available water supply is correct, in terms of capping total electricity generated. But there's plenty of room for TransAlta to screw with flows to control when that electricity is generated (and just as importantly, when it is not).
On the comment about conversion to "run-of-river" for some or all of these hydro units, I don't buy that in the least. There is no technical reason why the dams could not be operated simply for flood protection and downstream water management reasons only - and as a result of this operating regime, whatever water is flowed through each dam on any day (with those operating parameters) generates power, to whatever amount and whenever that may be. The Oldman dam operates in that matter - AEP controls the flows for water management reasons, and Atco simply generate whatever power they can from those flows as they are available. No reason why the Bow/Kananaskis hydro units couldn't be operated in exactly the same way.
-
1
-
-
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.
-
1
-
1
-
1
-
-
My dog-eared fishing diary and collection of fishin' tidbits from all over the place says Venice, Louisiana for big bull redfish in Nov. Muskies in the St. Lawrence. Sea-run cutthroats in the lower Fraser system.
-
Plenty of interesting comments/observations in this thread. I don't fish the Bow much at all, but I might add a few questions/comments to the discussion:
When comparing the Bow to how it was "x" years ago, one thing that doesn't seem to be discussed much is the fact that Calgary has grown so much over those past "x" years, to now a city of well over 1 million. As the city has grown, how has water quality been affected - more concrete/pavement (and runoff from same, washing in who knows what), more treated sewage water volume, more developments along the riverbanks, altering the banks and sedimentation, etc.
Also, it seems to me that when we talk about the health of the fishery, we focus primarily on the trout (for obvious reasons) - but isn't it the entire riverine ecosystem that we should be examining? Maybe we are - but what about the health of invertebrates in the river (trout food), and other fish species like whitefish, suckers (competitors for trout food)?
-
2
-
-
5 hours ago, DonAndersen said:
Monger,
lib that case, there are a lot of gay ones particularly in southern Alberta.
Don
Figured that suggestion was inevitably going to be made sooner or later in this thread...
Been seeing a lot of adults in past week in Calgary (damsels that is), not going to speculate as to male or female, almost all of them blue.
I would guess that regardless of adult coloration, the nymphs are all in that light green - dark olive/brown color?
-
Have seen them come out of the water to swipe at flying damsels and dragons...now if you can show one taken on a size 24 Trico, that would be something...
-
Guess it shows, they'll eat anything...have had many a fine experience chugging a floating fly (i.e., bass bug) in shallow waters for pike, the bigger the wake the better, and having them come right out of the water to take it, never mind any sort of gracious slurp.
They always seem to target the front of the fly, so I'd second the thoughts above regarding a wire bite tippet.
-
With the change of government, several Ministries' websites have basically been gutted/purged. Awaiting new gov't policy directives, I guess.
-
1
-
-
22 hours ago, Bron said:
Do you think Spinning around and losing the depth at where your fly is fishing (esp bobber fishing) is going to cost you more fish than how many you get hung up on a second anchor rope?
The boat generally doesn't move around that much, such that my target casting area generally is always within range.
-
So I'm going to go a bit contrarian here...I have a 12' alum boat and I run it with only one anchor, off the bow. Let the boat windmill in the wind - in big wind/waves (which for a 12' boat, don't need to be all that large in order to feel big) it keeps the bow pointed into the wind/waves, which is good for safety/stability. I like to cover a lot of water when I fish from an anchored position, so letting the boat windmill around is somewhat helpful in that regard.
I also often fish multiple-fly rigs (where allowed) and more than once, I'm somewhat ashamed to admit, I've had a fish break me off by dragging the line over the anchor rope, and getting one of the other flies on the rig caught on the anchor rope (can't always keep those big ones away from the anchor rope during the fight). I imagine this would be more of a risk when two or more anchor lines down.
I should note that most of my fishing in this boat is by my lonesome, so I can cast wherever when the boat is windmilling. If more than one person in the boat, better fixing of the boat via multiple anchors may be desirable.
-
Never too old - good for you for taking an interest. I agree that taking some casting lessons from a reputable shop is a great place to start. Some of us are "self taught" - I didn't have my first casting lesson with a qualified instructor until 30 years into my flyfishing time - but it was amazing how those lessons straightened out some long-practiced bad habits.
I would also say that the other best thing to do is read, read, and read some more - from the classics (e.g., "Masters on the Nymph" was a seminal one for me, as was Charlie Brooks' "Nymph Fishing for Larger Trout"; Gary Lafontaine's books; etc.) to the wealth of great stuff available today on-line.
I have found that keeping a good fishing diary has also been very helpful as a learning tool (particularly for those of us whose memory may not be quite what it used to be), particularly from year to year - noting not only whether you caught any fish on a particular outing, but other helpful observations such as insect activity, water conditions, weather, etc.
-
1
-
-
FishnChips,
The marginal cost of generating electricity by burning gas is material (natural gas price x the heat rate, or amount of gas burned to generate a MWh of electricity). The marginal cost of operating hydro is virtually zero. Thus, hydro will always be used (dispatched) first to respond to price compared to gas, economically speaking.
The only thing that can possibly mitigate/change TransAlta's operation of these hydro facilities is regulation, through greater restrictions on their operating licenses. A case would have to be made to AEP that it is in the public interest to have these facilities re-regulated (i.e., operated in more of a run-of-river mode, subject to much tighter daily fluctuation limits) to protect/enhance fisheries, as a priority over TransAlta's economic interests.
-
1
-
-
Right on, Fishteck.
The Alberta Electric System Operator ("AESO"), who administer the wholesale electricity market in Alberta, publish the hourly wholesale price for electricity in the province here:
Go to the "Historical" tab, and select "Pool Price". Then enter the date range of interest, and up pops the hourly wholesale price history.
Generally, there is a materially higher hourly electricity price during the day, than at night, as electrical load in the province correlates strongly with daily human activity (household, work, etc., vs. sleeping at night). Hence the pattern in the Bow hydro flows you show above - flow the water (and thus generate electricity) during the day, when the price is higher, and cut back at night. Water in these relatively small reservoirs is valuable/scarce, and hence its value in the form of electricity is to be maximized in accordance with hourly electricity prices.
The further bad news is that with all the wind generation we are adding in this province, this will increase electricity price volatility (due to the fact that wind energy generation is intermittent, and somewhat unpredictable - cannot be controlled/matched to load). Hence, when the wind blows at night, when we are generally surplus electricity supply anyways, it pushes down the price. Conversely, when demand is high and the wind isn't blowing, price shoots up. In Feb this year, through the cold, wind generation was almost nonexistent in Alberta - and we had very, very high electricity prices accordingly.
So as more wind adds to electricity price volatility, the economic driver to screw with these hydro flows to take advantage of that peak electricity pricing will only increase. Coupled with the TransAlta hydro PPA's expiring in 2020, this could be a "perfect storm" for even more jacking around with these hydro facilities, with further detrimental effects to the fisheries.
-
1
-
1
-
-
5 hours ago, DonAndersen said:
Shel,
Only the flowing waters and Burnstick Lake contained pike.
Every other lake only had minnow populations.
These lakes were stocked with invavsives from somewhere.
Cow Lake does contain pike, most have died due to winter kill. Catch rates are lower by far.
What a trade - from 15 lb. rainbows to 2>4 lb, pike and tiny perch.
To rotenone Cow Lake would cost upwards of a million dollars. To do other lakes in the area may add another million.
Time for a perch killing tax in fishing licenses? $20/year/angler would do Phyllis and Tay the following year Struble and Twin.
Don
"Perch killing tax" - love the idea, though may need a more politically correct name. If applied to all licenses (which I agree it should be), it would probably have to be in support of a more province-wide program, which in other areas may be towards creating new QF's or other activities to enhance specific local fisheries, rather than to just be about killing perch (not to take away from the importance of doing that, in certain waters).
Some other brainstorm ideas, that could be supported by such a fund (no particular order):
- Fund some legal/regulatory work to take on TransAlta and create more restrictive operating licenses (towards run-of-river operation, with greater lake level stabilization as a key operating limit parameter) for the K-lakes hydro system; maybe get some benefit in terms of stabilizing K River flows?
- Buy out the landowners around Dipping Vat Lake, and restore that to its former status
- Further aeration/development of new QF's, e.g., some of the potholes W of Calgary (maybe multi-species?), e.g., Norman, Frederick?
- Perch-killing/lake rehabs in RMH area
-
15 hours ago, DonAndersen said:
Smitty,
Perch are invasive as are trout in lakes where they did not occur naturally.
The question that should be asked, which lake stocking species draws the most Anglers?
All of the lakes with the exception of Burnstick and Swan in the Rocky area were fish free.
When trout were in Cow Lake you couldn’t find a place to park. Last year, opening day with illegally stocked perch and Govt stocked pike, there were a whole two of us fishing.
Cow Lake raised trout to 15 lbs.
Sad - what a waste of Fishing opportunity.
Don
So in light of this, I would like to ask (genuine question - I don't know the answer to this - want to see what everyone thinks), what would be involved in undertaking a high-profile "rehab" project on a lake like Cow?
It sounds from the post quoted here that Cow was much more popular as a trout fishery, than it is as perch/pike. So would it be a stretch to think that the angling community would generally be supportive of trying to restore Cow back to being a trout fishery - just Cow Lake, as a first step (for now)?
Pike/perch crowd can go to wherever the pike/perch are otherwise.
-
2
-
-
21 hours ago, FishnChips said:
Music to my ears:
With less than 5% of TransAlta total Alberta power generation capacity derived from the Bow River hydro plants, an alternate peak demand power generation source should be considered. Decommissioning the Bow River Basin’s hydropeaking facilities or modifying their operation protocols would not only enhance the rivers ecosystem and add to the sustainability of threatened and endangered species of fish but contribute to the recreational fishery and Alberta’s economy. Leadership is needed to make a change – now is the time to do so if society is to continue to enjoy the Bow River’s beauty and the fish that depend on a sustainable environment.
My (admittedly uneducated) guess is that the dams in place would still be used to buffer stream and river flows to prevent flooding, and some electrical power could still be produced, but this peak demand scenario would be mitigated by an alternative source for power? Or would all the hydro-electric machinery be removed? Would some of the dams be removed too, and if so, what might be proposed?
As a slight thread drift, my electrical power shunts on/off so frequently that I am very displeased with the Transalta system. I am re-setting clocks, under-floor heating thermostat clocks, microwave, oven and desktop computers regularly as a result of disruptions to service. As a paying consumer and water conscious sportsman I am disappointed entirely with this state of affairs.
Thanks for the link fishteck. While heartened by the report and the sincere effort of the foundation, I am dismayed that Federal and Provincial authorities are ineffective at data gathering, analysis, and regulation of these matters. The alliance between business and supposedly responsible government is simply an affront to common sense and responsibility.
Mind, if common sense were common everyone would have it.
Ah, my favorite topic...actually FishnChips, Alberta has more than ample peaking power generation, without the Bow system hydro at all. Hydro elsewhere (e.g., NSR system) and, increasingly, gas-fired generation provide all the peaking we need.
In 2020, the current Power Purchase Agreements to which most of the Bow hydro plants are subject expire. Then TransAlta can basically operate these unfettered (from an electricity market dispatch standpoint - still subject to their operating licenses (Alberta Environment) and any flood mitigation protocols).
These hydro assets are old, and have been fully depreciated for some time, so there really is no economic argument to be made to say that they could not be operated in another mode, i.e., more run-of-river, and with downstream flow stabilization as more of a priority, than on-demand peaking generation.
Your electrical supply disruptions are a function primarily of the distribution system operation, wherever you are located. Alberta operates as an electricity pool - all generation output is sold into an pool, and then distributed from there. You should talk to your local distribution "wires" provider if you are having supply reliability problems. It has nothing to do with generation.
-
1
-
-
On 3/25/2019 at 9:25 PM, trailhead said:
There is a large group of people that are purely catch and keep anglers who would rather have a bucket full of small perch than the pleasure of catching a trophy trout. I have run into them all over the province and most noticeably in Central Alberta, caught some very nice browns on Stauffer one day and when I ran into a group at the access point, they asked how I had done. When I replied about the fish I caught they asked where the fish were, I said I let them go. The response was "Yeah right, good one". Your not a successful angler unless you keep what you catch.
I think Trailhead hit it on the, er, head here with this comment - the catch-and-keep group (of whatever - trout, perch) is (very?) large. Thus I wonder, might our quality trout fisheries objectives be better served by concentrating only on a small number of lakes (at least at first), as showcase projects, and leave the rest for the catch and keep crowd, if they so love their stunted perch or heavily stocked trout?
Essentially, supply and demand - keep up the supply of the put-and-take fisheries (as hard as it is to write that), while working to transition some waters to QF trout status.
Others on this forum know better than I do (and will I'm sure correct me, if what I'm about to write is wrong), but our experience to date with lakes such as Muir, Beaver, etc. that have seen more effort towards the development of QF's there have not been subject to illegal perch stocking (yet). So maybe QF trout waters will continue to be respected, if there is still a supply of put-and-take fisheries (including some with perch).
Perhaps the only blanket regulation change should be a significant increase in penalty for being caught/convicted of transporting live fish.
Both sides of the perch zero retention/liberal retention debate discussed here have merit. But maybe a doable "win" for us is to at least get some increased focus on creating a few more higher quality trout fisheries first, with tighter regs, stepped-up enforcement, etc., rather than try to come up with a province-wide magic bullet change.
-
2
-
-
Over the years I have found that odd colors (or attractor patterns, I guess) have more often outfished the more natural colors described above in this post (not to slag the natural chiro's in any way, as all of the aforementioned patterns have been good as well). I particularly like one with a UV hot pink marabou tail (about full body length), deep purple holo mylar body ribbed with maroon wire, UV purple ice dub thorax, and a pearl white bead. Mmmm, deep purple.
-
Early last spring, a Northern Flicker went to work on a house down the street from me. Owners are snowbirds - imagine the shock of coming home and seeing basically all of the wood trim work on your house drilled up and ruined.
Took most of the summer to repair, mostly by replacing with non-wood materials like stone. However, for some strange reason one trim board above the front door was not repaired/replaced.
Sure enough, last week, as I was walking by in the morning, I hear the rat-a-tat-tat of the Northern Flicker, hard at work one year later. Now drilling holes in between the ones he/she drilled last year (infill drilling?).
-
1
-
-
More experimentation time this year, vs. just going with the tried-and-true that I know works.
On stillwaters, I want to try some floating leech patterns this year, fished on a full-sink line and short leader, sort of booby-style (but slower, of course).
Balanced leeches under the indicator are very effective, but I'd like to try some buoyant leech patterns like this to see whether staying within a short distance off the bottom, particularly where the depth is varying, makes any difference.
I tied some up this weekend with a foam head and underbody, to give this a try this spring.
-
1
-
-
PPB that is a good question, was wondering that myself. Given the holes that showed up in the early ice on the lake, I would guess that they were run back then at least, but would have to ask at the office to be sure. Last weekend, a guy ice fishing in front of my place said there was about 12" of ice.
I might further guess that they run the aeration in early winter while the lake is closed due to thin ice, and then again once the lake is closed due to thin ice in the spring.
-
My local Calgary community lake has a large area that is snow-free ice this winter. Thus the question whether under such circumstances, where sunlight can penetrate, do the weeds still die off (and thus consume O2 in their decomposition)? Is it just sunlight penetration that determines whether the weeds survive the winter, or are there other variables like water temperature that can/do kill off the weeds under the ice?
-
Three for sure, looking through my normal glasses. Ah, but when I put my polarized sunglasses on, a few more...
-
1
-
-
In July 2018 the daily variable flow were extreme. When we expressed our concerns for the fishery and potential impact on the fish survival itself immediate changes to the daily water management protocol were made and flows stabilized as best that TransAlta could do for the remainder of the year.
So..."Sorry for that July 2018 stuff, we couldn't help ourselves when we saw the Pool Price blow out like that...we'll try to do better from now on..."
What consequences were visited upon TransAlta from the July 2018 daily flow extreme variations? Fines/sanctions? Nope, nadda.
The electricity Market Surveillance Administrator hands down fines and other punishments when electricity market players misbehave...what consequences are their when a market participant misbehaves environmentally?
From TransAlta's Nov 1 2018 Investor Presentation, regarding "Upside" they see in their Alberta hydro facilities in the 2021+ time frame, when their PPA's expire (page 5):
Post PPA, TransAlta gets full revenue from energy, ancillary and renewables creditsBalancing Pool receives energy and a majority of ancillary revenue todaySo, come (even) next year, when we've seen more coal unit retirements, more wind generation (both of which drive volatility in the Power Pool Price), and there are again those massive electricity market price spikes...what do you think is going to happen? What about 2021+?Frog and the scorpion fable...
Trying different variants on a clouser minnow pattern
in Fly Patterns
Posted
Nice ties, Wayne.
My kids used to just slay the walleye and pike on a Rapala X-Rap in the "Purple Ghost" finish - pearl white belly, yellow sides, and purple on the top/back. So I tried tying up some Clousers and other flies (e.g., big Zonkers) with the same color pattern...and they worked very well, surprise, surprise. Don't know what it is about that purple and yellow combination, but the fish sure do seem to like it.