Marathon MFF122SS
Top Freezer · 12.1
Summary
The Marathon MFF122SS is a top freezer with 12.1 capacity that uses 315 kWh per year, costing approximately $50.40annually to run at the US average electricity rate. Over 10 years, that's $504.00 in energy costs alone. It uses 10% less energy than the federal minimum standard, earning ENERGY STAR's "Most Efficient" designation — the top tier of certified products. It meets ENERGY STAR certification but isn't among the top performers.
Ranked #1811 out of 4363 refrigerators by annual running cost, it costs $11.60 less per year than the category average of $62. At 23.4" wide, it is a standard size for its category.
How This Compares to Other Refrigerators
Ranked #1811 out of 4363 in the refrigerators category (by lowest annual cost).
Energy Details
Running Cost Breakdown
Estimated electricity costs at different time horizons (based on $0.16/kWh US average rate):
Actual costs vary by location. States like Hawaii ($0.43/kWh) pay significantly more while Idaho ($0.11/kWh) pays less. Use our energy calculator to estimate costs at your local rate.
What This Means for You
The Marathon MFF122SS is cheaper to run than the average refrigerator in its category. At $50.40/year, you'll save approximately $116.00 over 10 years compared to a typical model in this category.
Its efficiency score is moderate — solid but not top-tier. It balances upfront cost with reasonable energy savings.
Energy costs are just one factor in choosing a refrigerator. Consider the purchase price, features, reliability, and how the total cost of ownership (purchase price + energy costs over its expected lifespan) compares to alternatives.