ZGA Refrigerators: energy use and running cost

The average model uses 384 kWh a year, which costs $81 a year at 21.0¢/kWh.

Most efficient models

ModelkWh/yearCost/year
ZGA ZRT10ASLOPR297$62
ZGA ZRT15ASLOPR333$70
ZGA ZRT18ASLOPR367$77
ZGA ZRT25ASLOPR425$89

Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology