Sun City Resort Cuts Energy Costs with Solahart Pool Heating Solution

Detailed Case Study

Client: Sun International – Sun City Resort
Location: North West Province, South Africa
Industry: Hospitality & Leisure

Challenge:
Sun City Resort, with four luxury hotels and multiple pools, aimed to reduce its reliance on the national grid, meet Eskom’s 10% demand reduction target, and maintain aesthetics and quiet operation. Three large pools required efficient heating to maintain 28°C.

Solution:
Solahart engineered a custom hybrid heating solution:

• Water-to-Water Heat Pump Systems for the Palace of the Lost City and Cascades Hotel pools, drawing heat from a nearby river.
• Air-to-Water Heat Pump System for the Sun City Vacation Club pool due to its distance from water sources.
• System Installed: 10 x HWWP80-3, 2 x HWP80-3

Hot Water Requirements:

• Palace of the Lost City: 1,200,000 L/day at 28°C
• Cascades Hotel: 900,000 L/day at 28°C
• Vacation Club: 273,000 L/day at 28°C

Results:

• Energy Savings: 3.6GWh annually
• Demand Reduction: 420kW
• Environmental Impact: Lower reliance on the national grid
• Funding: Partially supported by Eskom through its ESCo model