Alberta Hydro

Our first power source

Alberta’s river basins have been a source of renewable energy for over a century. Today, their waters power more than a dozen of our hydro facilities, including our Horseshoe plant which has been in operation since 1911.

Alberta river flows and Reservoir and Lake Elevations

Check here for information pertaining to river flows downstream from our Barrier and Pocaterra hydro facilities. Regularly updated reservoir and lake elevation information is also available.

Updates on Operations

Community Update: Bow River Basin Flood and Drought Mitigation

January 2018: We continue to work with the Alberta Government and Bow River Basin stakeholders to address and advance recommendations from the Bow River Water Management Project Final Report. For information on flood mitigation and the efforts currently underway in the Bow River Basin, click here.

TransAlta to Lower Ghost Reservoir: TransAlta and Alberta Government Sign 5-year Agreement To Manage Water through Ghost Reservoir and the Kananaskis Lakes System

Calgary, AB (April 27, 2016) –TransAlta is pleased to advise that it has signed a five-year agreement with the Government of Alberta to manage water on the Bow River at its Ghost reservoir facility to aid in potential flood mitigation efforts, as well as its Kananaskis Lakes system (which includes Interlakes, Pocaterra and Barrier), for drought mitigation efforts.

This agreement builds on the initial successful pilots from 2014 and 2015 in which water levels at Ghost reservoir were lowered during the high runoff season to provide additional flood water storage. This five-year agreement  enables flood storage similar to 2015 operations but now includes drought mitigation opportunities through use of the Kananaskis Lakes system.

The period of operational control for the Ghost reservoir is May 16 to July 7, unless otherwise directed by the Province. Once the period is over, the reservoir will be gradually refilled to its typical operating level. The Kananaskis Lakes system will operate all year round to provide available water when the government calls for it.  Typically, a call for water would occur in late summer/early fall during a dry year.

As far as is possible, this agreement has been structured to be break-even. TransAlta expects to cover lost revenue if and when water levels must be lowered and power cannot be generated for customers, but does not expect to make a profit. The Alberta government will provide TransAlta with $5.5 million in compensation annually to offset the impacts modified operations will have on TransAlta’s ability to generate power at these facilities.

TransAlta is supporting the government on a strong engagement and communications plan so that those affected will have information about what this means for their communities and their activities.

News Release available here.

Province, TransAlta reach agreement to protect Calgary and other Bow River Communities from flood and drought

Government of Alberta News Release available here.

For questions please contact