Simulation & Analysis of the Hydronic Shell Retrofit System as a Solution for Deep Energy Retrofits and Electrification of Large Multifamily Housing Communities in Cold Climate

Summary

A study by Oak Ridge National Laboratory simulated the energy impact of a Hydronic Shell (HS) system for deep energy retrofits and electrification of large multifamily housing in cold climates. The HS system, which includes R-25 insulated panels and triple-pane windows, was simulated on a 75,992 ft2 prototype building across four locations (New York, Syracuse, Chicago, Boston). Results showed over 66% cooling energy reduction and more than 88% heating energy reduction compared to baseline buildings. The HS system also achieved an 87-89% reduction in annual CO2 emissions, with up to 219 Metric Tons (MT) reduced in Chicago, and more than 50% reduction in annual peak electrical demand (101-106 kW vs. 194-205 kW for baseline). HVAC-related energy cost savings ranged from $0.66 to $0.99 per square foot.

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Source Document

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