Benefits of adding Old City Hall to Enwave's Deep Lake Water Cooling system

• The capital cost of a conventional cooling solution is approximately $3.1 million while the cost of a DLWC solution is estimated at $2.5 million.
• Installing a conventional chiller plant would require mechanical, electrical and structural upgrades to Old City Hall, whereas connecting the building to DLWC is simpler and would require only minimal building upgrades. This is important not only from a cost perspective, but because Old City Hall is designated as a historical building.
• While a conventional cooling system has a life expectancy of 25 years, the building heat exchangers associated with DLWC will be required to be replaced only after 50 years.
• In addition to the longer life expectancy, DLWC equipment would be much more inexpensive to replace when required. On a present value basis DLWC is about half the capital cost of conventional cooling over the long term, i.e. up to the year 2056.
• The City's operating costs for implementing DLWC at Old City Hall are expected to be lower in comparison to a conventional cooling solution, due in part to a lower requirement for electricity.