Appliances / Window air conditioners / GREE
GREE GJC10BU-A6DRNJ2A
10,000 BTU · Window room air conditioner
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About the GREE GJC10BU-A6DRNJ2A
The GREE GJC10BU-A6DRNJ2A is a 10,000 BTU window room air conditioner certified by ENERGY STAR. Its official test figure is 510 kWh of electricity a year, which at the U.S. average price of 18.19¢ per kWh comes to $93 a year, or $928 over a typical 10-year life.
That is 35% less energy than the federal maximum for this type of air conditioner (785 kWh a year), a saving of about $50 a year compared with a model that only just meets the standard.
Among 492 window models it ranks #258 for running cost. The cheapest model of this type would save $455 in electricity over 10 years, though it may differ in size and features.
If you want the same type and a similar size for less to run, the K�hl KCVS08B10B uses 384 kWh a year and would save about $229 over 10 years.
Cost to run where you live
510 kWh a year (ENERGY STAR test figure) × 18.19¢ per kWh, the average residential price in the U.S. for Jan–Aug 2026 (EIA). Your bill depends on your utility and how you use it.
Cheaper to run, same type and size
Or see every medium rooms (8,000 to 10,000 btu) model ranked.
| K�hl KCVS08B10B | 8700 BTU | $70/yr | saves $229 |
| Midea MAH09B1AGR | 9500 BTU | $74/yr | saves $191 |
| Midea MAH09H1AGR | 9500 BTU | $74/yr | saves $191 |
| Midea MAH09N1AGR | 9500 BTU | $74/yr | saves $191 |
Specs
| Brand | GREE |
| Model | GJC10BU-A6DRNJ2A |
| Type | Window |
| Energy use | 510 kWh / year |
| Federal maximum for this type | 785 kWh / year |
| Size | 10,000 BTU |
| Width | 21 in |
| Efficiency (CEER) | 14.7 |
| Mounting | Straddles Window |
| Voltage | 115 V |
| Inverter (variable speed) | Yes |
| Heat mode | No |
| Refrigerant | R-32 |
| Height | 13.0 in |
| Depth | 18.0 in |
| Weight | 65.0 lb |
Specs and energy use from the ENERGY STAR certified products list (U.S. EPA). An asterisk in a model number stands for colour or finish codes. HouseholdLeak is not affiliated with ENERGY STAR or the EPA.
Questions people ask
How much does the GREE GJC10BU-A6DRNJ2A cost to run?
About $93 a year at the U.S. average electricity price (18.19¢/kWh), based on its ENERGY STAR rating of 510 kWh a year. In a state with expensive power it can be much more; pick your state on this page to see your number.
How much will the GREE GJC10BU-A6DRNJ2A cost in electricity over its life?
About $928 over 10 years, a typical life for a room air conditioner. Add that to the price you pay to get the true cost to own.
Is the GREE GJC10BU-A6DRNJ2A energy efficient?
Yes. It is ENERGY STAR certified and uses 35% less energy than the federal maximum for its type.
Is there a cheaper air conditioner to run of the same type and size?
Yes. The K�hl KCVS08B10B uses 384 kWh a year, about $229 less in electricity over 10 years.
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