According to British Columbia's Wilderness Committee, run of river hydropower projects are having a deathly impact on fish populations.
The Mamquam River pours cold and fresh off the Coast Mountains,
forming pools and canyons and chutes of white water on its way to the
Squamish River and Howe Sound. It was a natural place for federal fisheries biologists to assemble
on an August 2010 weekend for swift-water safety training. Like the
river itself, however, their exercise took an expected turn. Rather than watch the Mamquam flow predictably to the sea, the
biologists were dismayed to witness the water levels fluctuate wildly —
and with dire consequences. Young steelhead were dying, stranded without water. The culprit? The Capital Power run-of-river hydro plant, located just upstream.
The independent power industry bills itself as green, sustainable and environmentally responsible. But more than 3,000 pages of documents obtained separately by The
Vancouver Sun and the Wilderness Committee through freedom of
information requests show water-flow fluctuations caused by
run-of-river hydro projects are killing fish — and the problem is not
isolated. While independent power producers insist their sector remains the
cleanest energy option, the documents bolster environmentalists’
long-standing concerns about the industry. “I’m seeing significant environmental problems,” said Gwen Barlee,
policy director for the Wilderness Committee. “And that runs completely
counter to what the companies are saying, which is essentially, ‘Trust
us with your wild rivers and there won’t be any problems.’ ”
The full article can be read here. Of great concern is the synergy with UK plants such as the Settle hydro scheme. The companies have, according to the evidence, time and again breached the requirements of their licences but not been charged. And in tandem with our concerns about the depleted reach of the River Don and the likely impacts on the Kelham Island Goit, the main culprit of the damage being caused is the lack of proper control of the flow being taken from the river.
the south coast’s director of resource management for the Ministry of
Forests, Lands and Natural Resource Operations... said run-of-river projects represent an “emerging technology” operating in a “challenging landscape.”
So here again we have clear evidence of the negative environmental impacts of hydropower, but what are we learning from this here in the UK? Aren't companies like Sheffield Renewables being given consent to use the same 'emerging technology' to tinker with our poorly understood river ecosystems in the name of 'being green'?
Watch the film, 'Kelham Island Hydro', and ask whether what boils down to be a few kettles' worth of hydro-generated electricity is proportionate to the decimation of our little-understood and very fragile river ecosystems.
If you have problems viewing the film from here, please view on Vimeo or watch on Google where you can also download to your pc.