quote:Originally posted by sockeyefry
Thak you for the replies.
There are a few in my area. They are fairly small, and after the construction phase do not provide any employment.
Well, only a few jobs re: security and maintenance.
quote:Originally posted by sockeyefry
They are pretty automatic in their operation. One of the criteria I was told was that there had to be a power line close by an adequate water source. The cost of running a new line very far was said to be cost prohibitve. Given this I can't imagine that the developments will be widespread.
Actually, you are right most of the 1st points - unfortunately not so for the last assumption.
Since it costs $$ for infrastructure such as roads and power lines; obviously it makes sense for the IPP corps to solidify and concentrate their operations so that they "piggy-back" their infrastructure costs onto existing infrastructure.
This means no little "mom-and-pop" backyard Pelton wheels; but instead massive concentrated development such as is planned for Bute Inlet, where 17 run-of-river generating stations are planned and in various levels of completion on the Homathco, Southgate and Orford rivers.
The scale of this development is mind-boggling. Plutonic Power (as an example) is a Vancouver based energy generation company that has proposed the creation of many hydro-electric power generation installations within BC. The company’s flagship project is the 196MW East Toba and Montrose project due for completion in 2010. They have proposals for a lot of projects in the works, twenty-four of which have a combined total capital cost of around $3 to $4 billion dollars.
Check-out the pic below:
Each site also has quite a bit of industrial development. Check-out the devlopement at Ashlu Creek - it's not mom-and-pop. None of these sites will be.
Here's a nice pic/schematic from Plutonic Power Corp.
Since the EAO office gives approval on a site-by-site application; this also means no assessment of things such as cumulative impacts.
If much of the tribs of a river are in pipes through separate run-of-the-river projects - where are the coho, and resident char and trout going to spawn? They can't spawn in the diversion penstock pipes.
It's unlikely that water released in the diversion areas is enough to keep the remaining gravels from getting clogged with debris and loosing oxygen flow in the gravels.
Where is the instream vegetative growth if most of the river is in pipes. No sunlight there. No leaves blown in off the trees, either.
What are the coho fry, and resident fish going to eat?
What about access roads bringing-in more hunters and fishermen? What about erosion and fine sediments entering the creeks from the road network?
What about power line right of way cutting down trees? A conservative estimation is that 2400 hectares of forest are cut down for a 200km long transmission line and 5tons per hectare carbon sequestration are subsequently lost from the forest and soil.
And most importantly, who owns the water rights afterwards? The corporations.
THEY own
OUR water rights. It's scary and corrupt.
quote:Originally posted by sockeyefry
I would assume that any of these power projects would have to be okayed by DFO through the fisheries act.
Yes and No. Yes DFO reviews the application; but DFO will not be monitoring for compliance, especially during the critical low flow periods.
So, it's effectively a NO - since there is no third-party monitoring.
Yes, small-scale run-of-the-river projects have the potential to avoid some of the problems imposed by massive hydro-electric dam-generated power projects, but only if they:
1/ Have local input right from the preliminary design phase,
2/ are in fact, small-scale,
3/ sell the power at the going rates,
4/ are owned publically, and
5/ cumulative effects are taken into consideration.
So far Campbells' Liberals have done just the opposite since they only care about donations to their election campaigns.
Another drawback for run-of-the-river projects is that very often they will produce peak power in the late spring to early fall from rain and snow-pack melt run-off. This spring-fall power comes at a time when BC Hydro does not actually need to have the extra power produced since at that time it will have its own dams filled and will most likely also have to ‘spill’ its own water due to over-capacity.
The peak demand for electricity in BC is during the winter and not the summer. The temptation would then be for the operators of the run-of-the-mill plants to try to operate later in the season when the river flow is lower and there is more likelihood of damage to the eco-system from unexpected events such as lower river flows, greater than expected sediment, etc. This also happens to correspond to the spawning and breeding times for salmon so the potential for further impacts to the salmon population is clear.
We have to vote them out over this BC Hydro/IPP thing alone.