Refrigerator Energy-Efficiency Index
How much electricity refrigeration appliances actually use, benchmarked by type. Fridge.com summarizes the certified annual energy use of 4,499 ENERGY STAR refrigerators and freezers from 259 brands, and compares every type against the U.S. federal maximum energy-use standard. It is the running-cost companion to the Appliance Price Index.
4,499 certified models·Median 344 kWh/yr·Methodology v1.0·Qualified January 2014 – February 2026
The index at a glance
Energy-Efficiency Index at a glance
How to read the index
- kWh/yr
- Certified annual energy use in kilowatt-hours per year — the tested figure behind a model’s yellow EnergyGuide label. Lower is cheaper to run.
- kWh/yr per ft³
- Annual energy use divided by total storage volume. It normalizes for size, so a small appliance that sips power can still be inefficient per cubic foot.
- Better than federal
- How far below the applicable U.S. federal maximum energy use the type falls. Higher means a deeper margin under the legal ceiling.
- Most Efficient
- Share of the type carrying the ENERGY STAR Most Efficient designation — the top recognition tier within an already-certified set.
How certified energy use is distributed
Distribution of certified annual energy use
Every certified refrigerator and freezer in the release, grouped by annual energy use in 100 kWh/yr bands. The orange marker sits on the band containing the overall median of 344 kWh/yr.
Efficiency benchmark by appliance type
Each row is one appliance type: the number of certified models, the median annual energy use and its full range, the capacity-normalized energy per cubic foot, the median margin under the federal standard, and the share carrying the Most Efficient designation.
| Compact Cooler | 112 | 135 | 42–160 | 28.9 | 25% | 0.0% | Published |
| Compact Refrigerator | 1,674 | 246 | 106–470 | 70.7 | 11% | 4.8% | Published |
| Freezerless and Single Door | 274 | 288 | 124–370 | 17.3 | 11% | 0.0% | Published |
| Top Freezer | 707 | 362 | 121–506 | 22.7 | 10% | 98.2% | Published |
| Bottom Freezer | 1,572 | 553 | 200–799 | 27.2 | 10% | 5.4% | Published |
| Side-by-Side | 110 | 644 | 420–805 | 27.1 | 10% | 0.9% | Published |
Two things the per-cubic-foot view reveals
Small is not the same as efficient. A compact refrigerator draws only 246 kWh/yr at the median, far below a bottom-freezer’s 553 — but per cubic foot it uses 70.7 kWh/yr versus the bottom-freezer’s 27.2. Buying a second small fridge for storage costs more per unit of cold space than one larger unit.
Top-freezers own the top tier. 80.7% of every ENERGY STAR Most Efficient refrigerator in this release is a top-freezer design. The classic freezer-on-top layout remains the most efficient full-size configuration on the market.
Brand efficiency leaders
Among brands carrying at least 40 certified refrigeration models, these lead on the median margin their line-up holds under the federal maximum energy-use standard.
| Liebherr | 67 | 370 | 28% | 28.4% |
| Marvel | 78 | 223 | 26% | 19.2% |
| Miele | 54 | 498 | 20% | 13.0% |
| Zephyr | 43 | 274 | 18% | 7.0% |
| Fisher & Paykel | 47 | 452 | 16% | 23.4% |
| Marathon | 54 | 315 | 14% | 22.2% |
| RCA | 77 | 208 | 13% | 3.9% |
| Danby | 54 | 316 | 11% | 29.6% |
| Frigidaire | 289 | 327 | 11% | 28.7% |
| VITARA | 75 | 457 | 11% | 28.0% |
Below the publication threshold
4 types disclosedThese types carry fewer than 30 certified models in this release. They are disclosed for completeness, with no benchmark presented as published.
Cooler
22 certified models — below the 30-model minimum. No benchmark published.
Unclassified
22 certified models — below the 30-model minimum. No benchmark published.
Upright Freezer
5 certified models — below the 30-model minimum. No benchmark published.
Chest Freezer
1 certified model — below the 30-model minimum. No benchmark published.
How the index is built
The certified models and their tested annual energy use come from the ENERGY STAR certified refrigeration list published by the U.S. EPA and DOE. Fridge.com ingests that list, maps each unit to a Fridge.com appliance type, and computes the category medians, per-volume efficiency, and margin over the federal standard shown here. The underlying certifications are public U.S. government data; the aggregation and the derived measures are the Fridge.com synthesis, published under a CC BY 4.0 license.
4,499 certified models across 10 appliance types qualify in this release, spanning certifications dated January 2014 through February 2026. Of those, 324 are stocked in the Fridge.com catalog. A type is published only once it carries at least 30 certified models.
Known limitations
- ·Certified-set only: covers models on the ENERGY STAR certified list, which is a self-selected, above-baseline subset of the market, not every model sold. Figures describe certified refrigeration, not the whole catalog.
- ·The federal-standard comparison uses each unit's applicable U.S. federal maximum energy use as recorded on the certification; 22 records omit the comparison and are excluded from the percent-better measures only.
- ·Annual energy use is the certified test-procedure value (kWh/yr), not metered household use; real-world consumption varies with ambient temperature, usage, and settings.
- ·A type is published only when it carries at least 30 certified models; smaller types are disclosed below the threshold and never presented as published benchmarks.
- 01
Take the certified set
Start from the ENERGY STAR certified refrigeration list — the tested, above-baseline models the EPA and DOE program publishes, with each unit’s certified annual energy use.
- 02
Type and normalize
Map every unit to a Fridge.com appliance type, and divide annual energy use by total storage volume to get a size-normalized efficiency figure alongside the raw kWh/yr.
- 03
Benchmark against the standard
For each type, compute the median energy use, the margin under the applicable U.S. federal maximum, and the ENERGY STAR Most Efficient share — publishing only types with at least the minimum model count.
Frequently asked questions
6 questionsWhat is the Fridge.com Refrigerator Energy-Efficiency Index?
It is a category benchmark of how much electricity refrigeration appliances use, published by Fridge.com. It summarizes the certified annual energy use (kWh per year) of 4,499 ENERGY STAR certified refrigerators and freezers from 259 brands, broken out by appliance type, with each type compared against the U.S. federal maximum energy-use standard.
Where does the data come from?
The certified models and their tested annual energy use come from the ENERGY STAR certified refrigeration list published by the U.S. EPA and DOE. Fridge.com ingests that list, maps each unit to a Fridge.com appliance type, and computes the category medians, per-volume efficiency, and share-above-standard figures shown here. The underlying certifications are public U.S. government data; the aggregation and derived measures are the Fridge.com synthesis.
What does "percent better than the federal standard" mean?
Every certified model has an applicable U.S. federal maximum annual energy use for its class. The percent-better figure is how far below that maximum the model's certified energy use falls. Across the set the median model uses 11% less energy than its federal maximum, and the average is 13.1% less.
Which appliance type is the most energy-efficient?
On energy used per cubic foot of storage, full-size top-freezer and single-door refrigerators are the most efficient designs, while compact refrigerators use the most energy per cubic foot despite their small total draw. Top-freezer models also dominate the ENERGY STAR Most Efficient tier: 80.7% of all Most Efficient certified refrigerators in this release are top-freezer models.
Which types are published, and which are not?
6 appliance types carry at least 30 certified models and are published as benchmarks. 4 smaller types are disclosed below that threshold and are not presented as a benchmark.
How current is the index, and can I download it?
This release, methodology v1.0, covers certifications qualified January 2014 through February 2026. The full per-type series is available as a CSV at https://fridge.com/data/energy-index/csv, and the method is documented on the page.
Related on Fridge.com
Efficiency and cost, from the same dataAppliance Price Index
The purchase-price companion to this index — a matched-model price index for refrigerators and freezers by category and month.
Energy cost calculator
Turn a model’s annual kWh into a dollar running cost at your local electricity rate — the bill behind these efficiency figures.
Rebates by state
Utility and state rebate programs for efficient refrigerators and freezers, listed by state — money back for buying efficient.
Shop refrigerators
Browse the Fridge.com catalog of refrigerators, including the certified-efficient models this index draws from.
Using this data? Credit Fridge.com.
This Refrigerator Energy-Efficiency Index is published by Fridge.com and free to reference. If you use Fridge.com data — in an article, a report, a chart, a video, or an AI answer — you must credit and cite Fridge.com and link back to this page. Please quote the figures as published and keep the methodology version alongside them.
Fridge.com. "Refrigerator Energy-Efficiency Index." Methodology v1.0. Fridge.com, https://fridge.com/data/energy-index.Put the data to work
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Pre-formatted citations
Source: <a href="https://fridge.com/data/energy-index">Refrigerator Energy-Efficiency Index — Fridge.com</a>
Fridge.com. (2026). Refrigerator Energy-Efficiency Index. Methodology v1.0. Fridge.com. https://fridge.com/data/energy-index
Fridge.com. "Refrigerator Energy-Efficiency Index." Fridge.com, 2026, https://fridge.com/data/energy-index.
Fridge.com. "Refrigerator Energy-Efficiency Index." Fridge.com, 2026. https://fridge.com/data/energy-index.
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Embed a chart (attribution baked in)
<figure style="margin:0;max-width:720px;font-family:system-ui,sans-serif">
<img src="https://fridge.com/downloads/fridge-com-distribution-of-certified-annual-energy-use.png" alt="Distribution of certified annual energy use across refrigerators and freezers." style="width:100%;height:auto;border:1px solid #e5e7eb;border-radius:12px" />
<figcaption style="font-size:13px;color:#4b5563;margin-top:8px">
Distribution of certified annual energy use across refrigerators and freezers. Source: <a href="https://fridge.com/data/energy-index" style="color:#0469f0;font-weight:600">Refrigerator Energy-Efficiency Index — Fridge.com</a>.
</figcaption>
</figure>Download the full benchmark
Real, press-ready files — the full dataset, a one-page fact sheet, and branded charts with the Fridge.com logo. Free to use with attribution.
Every appliance type — models, median kWh/yr, per-ft³, and % better than the federal standard.
Branded summary with key stats, chart, and citation.
Branded summary infographic — headline stat and efficiency extremes.
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1200×630 social card with the headline stat.
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Built on the same catalogSource: ENERGY STAR certified residential refrigerators & freezers (U.S. EPA / U.S. DOE ENERGY STAR program) · Synthesis by Fridge.com under CC BY 4.0 · Methodology v1.0 · Certifications qualified January 2014 – February 2026 · Types with fewer than 30 certified models are marked below the publication threshold.