End-Use Savings Shapes
New EUSS 2023 Release 2 Measures
Measure Name
Description
Heat Pump Rooftop Unit (HP-RTU) With Replace gas and electric RTUs with HP-RTU. Backup heat source
Original Fuel Backup
matches fuel type of the original system.
Air to Water HP Boiler Retrofit With Gas Replace gas boilers with heat pump boilers. Gas boiler used for backup
Backup
% of Stock Floor
Area
36%
33%
heat source.
Variable Refrigerant Flow (VRF) With
Dedicated Outdoor Air System (DOAS)
Replaces air handling units (AHUS) with a VRF DOAS.
53%
Demand Control Ventilation (DCV)
Adds DCV to AHUS that do not have them.
73%
Energy Recovery
Package 1: Envelope
Package 2: Lighting + HVAC
Adds heat or energy recovery to AHUS that do not have them.
Combines wall insulation, roof insulation, and new windows measures.
Combines LED lighting and HP-RTU or HP-boiler measures.
70%
100%
89%
Package 3: Envelope + Lighting + HVAC Combines packages 1 and 2.
100%
NREL 22View entire presentation