Additional residential cooling energy is added each time a heat pump is adopted in a home that did not previously have cooling; this added energy/emissions/costs should be considered in the Scout measure preparation module, ecm_prep.

Proposed Approach:

• Create measures that represent fraction of baseline heating segments without cooling; include baseline cooling segments for these measures, but scaled to zero.

  • Resolve mkt. scaling fractions that represent heating without cooling by BA climate region

• Loop through measure heating segments and determine/record the # of heating units that convert to heat pumps by region, building type, and building vintage

• Loop through measure cooling segments and pull the following data for each region, building type, and vintage combination (in partition_microsegment function):

  • Unit-level baseline cooling energy use (MMBtu/base cooling unit)
  • Measure relative cooling performance vs. baseline cooling unit (%)
  • Calculate total added cooling energy (and emissions/costs) for region/building/vintage:
    • added cooling = b * c.i * c.ii

• Add (c.iii) to the measure’s efficient results