T-4A1b-TE-8 - Energy efficient AC in single-family buildings
Background¶
IPCC WG3 definition: .
Inverter air conditioners use a variable speed compressor instead of the fixed-speed compressor found in traditional models. A fixed-speed compressor operates at a constant speed, either running at full capacity or completely shutting off. On the other hand, an inverter compressor can adjust its speed and capacity based on the cooling load. This allows the inverter air conditioner to modulate its cooling output and match it precisely to the required cooling demand, resulting in better energy efficiency. Other advantages of this technology are: precise temperature control, quick cooling, and startup time, enhanced comfort, quieter operation and longer lifespan.
Sustainability Category: Amber¶
This transition element has only moderate climate impact but may be necessary for maintaining urban needs, with a clear pathway to decarbonization. While not aligned with net-zero targets, this transition element is actively improving the emissions profile and represents intermediate performance on the path to sustainability.
Transition Element¶
| | |
|---|---|
| Shift type: | Efficiency Shift |
| Operations: | m2 |
| Activity measure: | m2 |
| Activity conversion: | 1 |
Activities¶
| | Improves: |
|---|---|
 |
T-4A1b-A-11 - Domestic houses cooled with AC |
Parameters¶
| Parameter | Unit | Description |
|---|---|---|
| energy_intensity_cooling_residential_single_family_buildings_ac | kwh_m2 | Energy intensity AC cooled single-family houses |
| single_family_ac_efficiency_improvement_factor | percent | Energy efficiency savings factor for AC in single-family houses |
YAML Specification¶
sustainability: amber
version: 2.0.0
type: update
longName: Upgrade AC in single-family buildings to reduce electricity use
shortName: Efficient single-family AC
description: Reduce the amount of energy required to cool single family buildings
with AC through more efficient AC units
weightInversionExpression:
expression: ((1 / ( unknown_x / %[0] )) - 1) / %[1]
variables:
- energy_intensity_cooling_residential_single_family_buildings_ac
- single_family_ac_efficiency_improvement_factor
unitOfMeasure: m2
cohort:
expression: '1'
variablesToUpdate:
- update: energy_intensity_cooling_residential_single_family_buildings_ac
type: EFFICIENCY_IMPROVEMENT
by:
expression: '%[0]'
variables:
- single_family_ac_efficiency_improvement_factor
carbonCausalChains:
atoc:
expression: '1'
chains:
- chain: single_family_building_cooling_with_ac