Partners: Slipstream, FlowEnergy
This project explored the potential savings from smart valve technology in chilled water systems at commercial sites in the ComEd service territory.
Smart valves reduce demand for chilled water by stabilizing pressure and flow in connection with detailed sensors that integrate with building automation systems. This coordination allows for optimal energy savings and performance. In the first phase of the project, the team conducted product analysis to compare manufacturer savings estimates to other small smart pump technology and verify their savings methodology. In Phases 2 and 3, the project team recruited a customer site for an installation of smart valves, then conducted field monitoring, energy modeling and savings verification. The selected customer site was a hospital located in Rockford, IL.
Results and Outcomes
- Estimated first-year savings per installation range from 100,000–700,000 kWh. The monitored savings from the smart valves retrofit in the study totaled 566,000 kWh.
- The best candidates for smart valves are cooling-intensive facilities, including hospitals and educational laboratories.
- Energy savings potential is higher in facilities with older water-cooled chiller systems, especially those with primary/secondary pumping arrangements.
- Although the required capital investment and relatively complex installation process may lead to a small number of projects per year in the ComEd service territory, most projects are likely to result in large amounts of savings.
- The ComEd Energy Efficiency Program custom offering represents the likely primary pathway for promoting smart valve savings opportunities.