Commercial Water Coolers
ENERGY STAR certified water coolers and bottle fillers, with daily energy use, dispenser capacity and refrigerant data.
179 models · 28 brands
- Best
- 0.100kWh/day
- Median
- 0.660kWh/day
- Worst
- 0.800kWh/day
Daily Energy across 179 models that report it.
Water coolers are rated by standby energy consumption — the electricity drawn to keep water cold when nobody is dispensing. The most efficient models use under 0.2 kWh/day; the least efficient use over 1.0 kWh/day. Over a five-year life, that difference is $100–200 in electricity.
Bottle-fed coolers require water delivery; point-of-use models connect to a water line and need a filter. Both types are rated on the same energy scale, so efficiency can be compared directly regardless of water source.
Most efficient
Ranked by daily energy as rated, without normalising for size — compare within a capacity class rather than across the whole list.
| Model | Brand | Daily Energy | Cold Perf |
|---|---|---|---|
| GLED2WTW1AC | Crystal Mountain | 0.100kWh/day | 0.580 |
| B7B1 | Clover | 0.120kWh/day | 0.670 |
| AES-D2KTK1AC | Crystal Mountain | 0.120kWh/day | 0.370 |
| AES-D2WTW1AC | Crystal Mountain | 0.120kWh/day | 0.370 |
| GLSD2WTW1AC | Crystal Mountain | 0.120kWh/day | 0.430 |
| F528KB020-EWPX | Angel Water System Technology Sdn Bhd | 0.130kWh/day | 0.540 |
| F528KB020-P | Angel Water System Technology Sdn Bhd | 0.130kWh/day | 0.650 |
| AWVW110ESP | Waterways | 0.130kWh/day | 0.650 |