Appliances / Refrigerators / Insignia
Insignia NS-RBM18 series
18.7 cu ft · Bottom Freezer refrigerator
Check the price at the store, then add $1,017 of electricity to get the true cost. We may earn a commission if you buy through these links.
- Price. Check what it costs at the store.
- Plus running cost. Add $1,017 of electricity over 12 years. That is the part the price tag hides.
- Compare. Pick your state below, then check the cheaper-to-run models of the same size.
About the Insignia NS-RBM18 series
The Insignia NS-RBM18 series is a 18.7 cu ft bottom freezer refrigerator certified by ENERGY STAR. Its official test figure is 466 kWh of electricity a year, which at the U.S. average price of 18.19¢ per kWh comes to $85 a year, or $1,017 over a typical 12-year life.
That is 11% less energy than the federal maximum for this type of fridge (521 kWh a year), a saving of about $10 a year compared with a model that only just meets the standard.
Among 1,422 bottom freezer models it ranks #344 for running cost. The cheapest model of this type would save $581 in electricity over 12 years, though it may differ in size and features.
If you want the same type and a similar size for less to run, the Liebherr SC7751 uses 354 kWh a year and would save about $244 over 12 years.
Cost to run where you live
466 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 (18 to 23 cu ft) model ranked.
| Liebherr SC7751 | 16.9 cu ft | $64/yr | saves $244 |
| Beko BFBD30216SS | 16.1 cu ft | $65/yr | saves $242 |
| Beko BFBD30216SSL | 16.1 cu ft | $65/yr | saves $242 |
| Beko BFBF30116SS | 16.1 cu ft | $65/yr | saves $242 |
Specs
| Brand | Insignia |
| Model | NS-RBM18*** |
| Type | Bottom Freezer |
| Energy use | 466 kWh / year |
| Federal maximum for this type | 521 kWh / year |
| Size | 18.7 cu ft |
| Width | 29.5 in |
| Height | 66.5 in |
| Defrost | Automatic |
| Built-in | No |
| Compact | No |
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 Insignia NS-RBM18 series cost to run?
About $85 a year at the U.S. average electricity price (18.19¢/kWh), based on its ENERGY STAR rating of 466 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 Insignia NS-RBM18 series cost in electricity over its life?
About $1,017 over 12 years, a typical life for a refrigerator. Add that to the price you pay to get the true cost to own.
Is the Insignia NS-RBM18 series energy efficient?
Yes. It is ENERGY STAR certified and uses 11% less energy than the federal maximum for its type.
Is there a cheaper fridge to run of the same type and size?
Yes. The Liebherr SC7751 uses 354 kWh a year, about $244 less in electricity over 12 years.
Want the cheapest picks every week?
Join the free Leak Club. One short email with the lowest-cost picks we found.