Schwans Super Rink 1-4
Mark Hancock, P.E. — Oct 2017
CEE worked with the National Sports Center to identify energy savings and opportunities to improve operational efficiency.
The primary systems under review were the ice-making equipment, arena heating and cooling systems, domestic hot water production, and lighting. System performance was documented by data collected from the existing building automation system, deployment of dataloggers, and one-time measurements of operating parameters.
CEE identified 22 maintenance-related items that National Sports Center needed to address for effective equipment operation. Beyond that, CEE suggested 14 energy conservation opportunities for over $96,300 in potential annual savings.
- Five improvements were identified that had no implementation costs, including set point changes and minor cleaning tasks, which will yield over $14,000 in annual savings.
- Many recommendations for the ice making equipment were associated with capital costs, but when combined with the no-cost recommendations, the total project payback is minimal.
Overall, results indicate numerous opportunities for National Sports Center to lower its operating costs and save energy by making simple adjustments.
Annual Savings Potential
At a total cost of roughly $264,200 and a simple payback of 2.7 years, the recommended energy conservation improvements should yield annual savings of:
- $96,314 in energy spending
- 997,074 kilowatt-hours electricity
- 80 kilowatts electricity–summer demand
- 92 kilowatts electricity–winter demand
- 17,852 natural gas therms