What is the impact of of deep energy retrofits (DER) vs. business-as-usual retrofits (BAU) on annual utility cost in a low-rise multifamily apartment?
What is this graphic showing? Describe the different parts of the graphic and how it communicates the data.
The graphic shows the annual utility cost broken down by fuel type across six retrofits. These retrofits were modeled to represent typical retrofit values and deep energy retrofit values and the utility costs of each was gathered. It can be used to determine which retrofits work best when cost is considered as the metric of choice. It also shows a cost sensitivity analysis where the minimum and maximum unit cost of electricity within the past 20 years were considered and plotted to show how electricity cost would vary.
What type of graphic is this?
- Table / Chart
- Building Materials
- Glass U-value / SHGC
- HVAC performance/system selection
- Insulation R-value
Is this part of the ASHRAE-209 cycle?
- Cycle 1 Simple Box Model
What tools were used for the simulation analysis?
What tools did you use to create the graphic?
What was successful and/or unique about the graphic in how it communicates information?
The graphic shows the cost implications associated with electrification. The HVAC DER involved replacing existing gas fired furnace and AC with a heat pump system as opposed to the HVAC BAU were the existing system was replaced with a high efficiency furnace and AC unit. The graphic shows that electrification may not be the best idea as the HVAC DER cost is much higher than HVAC BAU.
Is there anything else you would like to mention?
Included in the competition:
2023 Annual StaSIO Challenge
March 21, 2023-June 12, 2023