During high demand periods, electricity is produced by using the water flow from the upper to the lower storage reservoir. When demand is low and electricity prices are lower, the water is pumped back up. For more information on pumped storage, check out this article “Mining for Megawatts in Mamora”.
On 23 March 2011, the Vermilion River Stewardship was very fortunate to be given the opportunity to make a presentation to the Policy Committee for the City of Sudbury, Ontario, right on the heels of Mark Holmes of Xeneca Power Development Inc. This is a good overview of the issues and challenges the 4 proposed dams will present to the Vermilion River and its Community.
Parts 1 to 4 are Mark Holmes, ED of Xeneca’s; and Parts 5 to 8 are of Linda Heron, Chair of the Vermilion River Stewardship.
We are in a Green Energy Rush – like the gold rush days of old. I think everyone wants green energy, but many of these proposals have been green-washed to make them appear to be safe for the environment, when in fact they are dirty energy. Hydro-electric projects that use holding ponds, and ‘modified peaking’ to take advantage of peak demand bonus rates, are actually dirty energy.