Halifax, Nova Scotia

1986: The Canadian government and Purdy's Wharf Development, Ltd. deployed a small diameter pipeline to a depth of less than 100' ft. Total investment for this project was $200,000. The project was very successful and savings were identified in the following areas: a saving of $50-60,000 per year in avoided electrical cost, fewer maintenance staff, reduction in fresh water, savings in water treatment, and savings in cooling tower maintenance and replacement. The financial result in terms of a simple payback period was two years. Today, Purdy's Wharf continues to successfully utilize an expanded seawater air conditioning system for their waterfront properties.

Please note that Makai was not involved in the design process of this system. It is included as a good example of SWAC technology.