«There is a tsunami
of hydropower dam constructions happening here and nobody really knows about it,» said Britton Caillouette, director of «Blue Heart», a documentary that focuses on efforts to halt the hydropower plans.
My gut reaction was to be skeptical: Solar has been growing rapidly, especially in California, but even with nearly 3,000 MW of photovoltaic (PV) and solar thermal generation in place, it's still well short of the scale of California's 10,000 MW
of hydropower dams, especially when you consider that the latter aren't constrained to operate only in daylight hours.
This will have a knock - on effect on the animal species that inhabit these islands, as well as having serious implications for the carbon balance
of hydropower dams relative to other sources of energy.
Prior to coming to UCS, Ms. Wisland was the director of the California Hydropower Reform Coalition where she helped design several state and federal policies to reduce the environmental impacts of California's existing network
of hydropower dams.
Not exact matches
Cambodia joins a lengthening list
of nations around the world that are reassessing big
hydropower dams in an era when wind and solar power are less expensive, much easier to build, less damaging, and far less vulnerable to droughts and floods.
The Oswego Common Council is expected to vote tonight on a resolution taking away Brookfield Renewable Power's right to regulate an area
of the Oswego River near a
hydropower dam it operates.
Dams are a major problem for some of these migrators — there are at least 37,600 hydropower dams in rivers globally, with hundreds more in progr
Dams are a major problem for some
of these migrators — there are at least 37,600
hydropower dams in rivers globally, with hundreds more in progr
dams in rivers globally, with hundreds more in progress.
Now, to foster a less confrontational way
of advancing projects, the
hydropower industry, environmental and human - rights organizations, and representatives from banks and governments have negotiated a mechanism for evaluating, and perhaps mitigating, the impact
of dams before they are built.
«We may see a certain shift
of resources from coal where the World Bank is pretty much exiting to big
hydropower,» said Peter Bosshard
of International Rivers, which has been fighting a major new
dam project in the Democratic Republic
of Congo.
«Individually, large
hydropower dams will always cause greater environmental impacts, but with rapid growth
of the small
hydropower sector, our rivers might just suffer from many small cuts.»
Thirteen large
hydropower dams are proposed for the main stream
of the Nu River in Tibet and Yunnan Province in China.
As a result, many private landowners and corporations can leverage easier environmental permitting to build small
hydropower dams for a fraction
of the time and cost
of large
dams.
COPENHAGEN — Revolutionizing the energy industry to achieve a target concentration
of greenhouse gases in the atmosphere
of no more than 450 parts per million (ppm) would require building 17 nuclear power plants a year between now and 2030; 17,000 wind turbines a year; or two
hydropower dams on the scale
of Three Gorges
Dam in China, according to the International Energy Agency.
In Brazil, for example, there are cases
of small
hydropower dams producing the same amount
of power, but varying greatly in the sizes
of reservoirs behind them.
Despite the Three Gorges
dam's growing list
of problems, however,
hydropower remains an integral — and ostensibly green — component
of China's energy mix.
Whether it's offsets from no - till farming that would have happened anyway from the Chicago Climate Exchange or offsets from
hydropower dams in China that would have been built anyway under the terms
of the Clean Development Mechanism
of the Kyoto Protocol, it's all a bit
of a shell game at present.
In Brazil, several dozen
dams are planned along the Amazon, Madeira and Xingu rivers — an area that teems with more than 5,000 species
of fish, and where some
of the largest
hydropower projects in the world are being built.
Somewhere along the upper Aragón River, between the jagged peaks
of the Pyrenees and a
hydropower dam, conservation biologist Madis Põdra and his colleagues will release 10 or 12 captive - born European minks (Mustela lutreola) next week into a mink's idea
of heaven: a pristine patch
of Spanish wilderness with 150 kilometers
of waterways.
In May 1998, public health researchers writing in the medical journal The Lancet warned that the Three Gorges
Dam «could become the Chernobyl
of hydropower».
Such seismically active regions are exactly where hundreds
of dams 15 meters or higher are either under construction or being planned, most
of them to supply
hydropower to India or China.
Coming from Washington State, which is highly dependent on large hydroelectric
dams for its electricity, McMorris Rodgers is a vocal supporter
of hydropower and nuclear energy and has sponsored legislation expanding the development
of small hydroelectric
dams nationwide — a valuable source
of renewable energy.
The drought has also severely reduced the flow
of rivers that feed
hydropower dams, leading to power rationing and even blackouts in the region.
The latest version — called the second - generation Sensor Fish — can be used in different kinds
of hydro facilities, including unconventional, smaller
hydropower plants and conventional
dams with either Kaplan or Francis
dam turbines.
Many
of the negative impacts
of hydropower center on what the
damming of rivers does to the native plants and animals in the waterways that are affected.
Having see what some big
dams have done to Swedish Lappland, for example, I feel like trading some
of those
hydropower projects for nuclear energy might have been a net plus for the environment.
Now, Bhutan plans to build an array
of new
dams and quickly ramp up
hydropower capacity to 10,000 MW by 2020 — a goal that is becoming increasingly controversial.
More: The
Damming of the Mekong: Major Blow to an Epic River China
Dams China Wants 20 More
Dams on the Headwaters
of the Yangtze River China Mulls Building Hydroelectric
Dams in Southern Tibet China Builds
Dam on Indus, Doesn't Tell Pakistan
Hydropower on China's Nu River, Alternatives to Huge
Dams (Video)
At the time
of writing more than 99 %
of the world's energy storage was in pumped hydro (not considering water in
hydropower dams as energy storage).
Roughly 16 percent
of the world's electricity comes from
hydropower, most
of it from large
dams.
«With the deluge
of proposed
hydropower dams and diversions in the Balkan peninsula we are looking at what could be irreversible environmental destruction»
«With the deluge
of proposed
hydropower dams and diversions in the Balkan peninsula we are looking at what could be irreversible environmental destruction, but there is very little awareness
of this issue in Europe or globally,» said Ryan Gellert, general manager, EMEA,
of outdoor clothing company Patagonia, which backed the film financially.
California's Energy Imbalancing Market is a strategy to buy cheap out -
of - state
hydropower from federal
dams to replace the government - induced high price for natural gas peaker power as a result
of shifting to green power.
The
Hydropower Sustainability Assessment Protocol (HSAP) is a voluntary, non-binding auditing tool that allows
dam builders to score the sustainability
of their own
dam projects.
The HSAP was created between 2007 and 2010 by the
Hydropower Sustainability Assessment Forum (HSAF), an initiative
of the International
Hydropower Association (IHA), a lobbying group formed in 1995 to represent the interests
of dam builders.
Downstream
of these stations are 14 additional
dams on the Columbia River each tapping this same glacier runoff for
hydropower.
While conventional
hydropower will continue to grow as
dams are completed in China, Brazil and a scattering
of other countries, including Ethiopia, Malaysia, and Turkey, there exists enormous potential for non-conventional hydroelectricity generation from tidal and wave projects, as well as from small in - stream projects that will not require new
dams.
This push to demolish large
dams on major rivers in the Pacific Northwest, which got 70 percent
of its electricity supply from
hydropower as
of 2009, has been criticized by influential policymakers, such as House Natural Resources Committee Chairman Doc Hastings (R - Wash.).
These
dams will serve mainly as a source
of hydropower, with a total potential
of 1,890 megawatts.
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Of Protest Hits Indian
Dams
The Myitsone
Dam, a 6,000 megawatt
hydropower project, was slated to be built on the critical watersheds
of the Irrawaddy River, displacing 18,000 people from nearly 50 villages and submerge their cultural heartland.
Vimal Bhai is the founder
of Matu Jan Sangathan, a collective that has been advocating for rights
of communities impacted by large
hydropower projects and
dams in India's Himalayan state
of Uttarakhand.
The construction and operation
of over 1 million
dams globally (Lehner et al. 2011) has provided a variety
of services important to a growing human population (e.g.,
hydropower, flood control, navigation, and water supply), but has also significantly altered water, nutrient, and ecosystem dynamics and fluxes in river networks.
About 17 percent comes from
hydropower, much
of it from large
dams in the northeast.
China's target is to have renewable sources produce 10 percent
of its power by 2010 - not counting large
hydropower projects such as the Three Gorges
Dam.
One scenario includes heat pumps — which are used in place
of combustion - based heaters and coolers — but no hot or cold energy storage; two add no
hydropower turbines to existing
hydropower dams; and one has no battery storage.
Hydropower projects encompass
dam projects with reservoirs, run -
of - river and in - stream projects and range from small to large scale.
So, unless you can provide figures showing that hydro generating capacity as a proportion
of total electricity generating capacity is growing faster now than ever before, I still say the claim
of «unprecedented boom in
hydropower dam construction is underway» is BS.
It procures its electricity from
hydropower off the Hoover
Dam, power purchase agreements and the wholesale market (it was the first out -
of - state utility to join CAISO).
However, in February 2011, Chinese officials revealed plans to resume the Nu River
dams as part
of China's 12th Five - Year Plan, which aims to add up to 140 GW
of new
hydropower capacity to meet its renewable energy targets.
Some
of the prominent
hydropower projects in China include the Baihetan
dam (expected to be completed in 2019), the Wudongde and Xiangjiaba
dam (expected to be completed in 2015) and the Xiluodo project.