Efficiency ratings of assessed cooling equipment

Distribution of SEER ratings among the 18,556 units with readable ratings; new equipment has had to exceed SEER 13 since 2006

SEER ≤ 13 (at or below the 2006 federal minimum) SEER > 13 Cooling delivered per unit of electricity, relative to SEER 10 (right axis)
61%of units lack an economizer, a key efficiency technology, and of the units that have one, only 51% passed functional testing
49%of units are run by a standalone wall thermostat with no building management connection; only 8% use demand-controlled ventilation

Source: CalSHAPE assessment data; data reflect conditions at time of assessment, 2021–2024. Economizer, thermostat, and demand-controlled-ventilation shares reflect the 41,011 units assessed under the current (V2) protocol.