Hydrogen Transportation

Water Supply and Storage

Water Supply

The water supply for the Project will be provided from the Bow River under a long-term licence issued by Alberta Environment Protection (“AEP”). Each new Phase will require a separate Water Licence, ensuring that any incremental environmental issues that might be associated with Project growth are addressed.

IEPS has under contract up to 880,000 m3 of Bow River water at pre-agreed prices with a licenced water owner. Since the Project uses water as the feedstock to produce green H2 and O2, a secure supply of water at an acceptable price is clearly essential. In this case, having a secure water supply in hand in advance of operations provides the Project with a very significant competitive advantage. This is particularly true in southern Alberta where the large industrial demand on limited water supplies can make securing adequate water particularly challenging.

Diversion of the feedstock water from the Bow River and its conveyance to site will be through the existing EID canal system under contract. The use of the existing EID system avoids both significant new impacts and significant costs. The annual water demand for the initial Project phase will be approximately 25,000 m3 (20 AcFt), including the electrolyzer demand, balance of plant needs, and water loss during conveyance and storage. At full 450 MW production rates, the total Project water consumption will increase to approximately 670,000 m3(543 AcFt) annually.

Water Diversion and Storage

Flows in the Bow River are naturally variable, and AEP has set minimum flow objectives for the Bow River that must be maintained to protect the natural aquatic environment. During low flow periods, diversions from the river for industrial purposes can be curtailed and if not mitigated, this could make the Project vulnerable to water supply shortfalls.

To address this issue, IEPS will  divert its entire annual water demand during the spring freshet on the Bow River i.e. early May to mid June when flows are much higher than average and store that water off stream within an existing EID owned and operated reservoir.

Given the size of the EID’s reservoirs relative to the Project’s water demand, even at full build out, the water storage requirements for the Project will be only a small percentage of the reservoir’s firm live storage capacity. This will ensure that green H2 and O2 production  can continue even during  significantly drier than normal (drought) years. At the same time, the use of an already existing reservoir will also significantly reduce the environmental footprint of the Project.

Water supply and storage
Credit: Travel Alberta