c/kWh
Total capacity
387 L
387 L fridge
Energy rating
4
Star rating index 4.27
Annual electricity use
170 kWh
Label figure (comparative energy consumption)
Estimated running cost
$54 / year
$4.53 / month Β· $544 over 10 years

6% more electricity than the median of 47 comparable 300–399 L fridge without a separate freezer registrations (161 kWh a year). It uses less than 36% of them. At 32c/kWh that is about $3 a year more than the median, $29 over 10 years.

Uses 48% less than the maximum allowed for its size and type under the minimum energy performance standard (324 kWh a year MEPS level).

Cost = label kWh Γ— 32c/kWh in AUD; change the price above to your tariff.

How efficient is it for its size?

kWh per year. Bar: the middle 80% of 47 comparable 300–399 L fridge without a separate freezer registrations. Dot: this model (above the median). Hover or tab to a mark for its value.

Cohort: every currently registered 300–399 L fridge without a separate freezer sold in Australia, counted once per registration. Star ratings already account for size through the GEMS adjusted-volume formula; this comparison is in raw kWh against models a buyer would actually consider instead.

Samsung Electronics SDFX3100N running cost

Per month
$4.53
Per year
$54
5 years
$272
10 years
$544

170 kWh Γ— 32c/kWh. No inflation or tariff change assumed. Fridges run continuously, so the label figure is a whole-year estimate under standard test conditions.

Capacity and compartments

Total gross volume
387 L
Fresh food (fridge) volume
387 L
Frozen storage volume
–
GEMS adjusted volume
387 L
fresh food compartment
387 L gross

Gross volumes exclude shelving. Fresh food = fresh food, chill and cellar compartments; frozen = freezer, two-star and ice-making (zero-star) compartments. Adjusted volume weights frozen space more heavily and is what the government uses to set the star rating for the size.

Similar fridge without a separate freezers that use less electricity

Same type, total capacity within 12% of 387 L, at least 3% lower annual kWh.

ModelStarsEst. cost / yrCompare
Liebherr SRBs*h 5260384 L112 kWh/yr6$36
Liebherr SRBsdh 5260384 L112 kWh/yr6$36
Miele KS 4783 ED edt/cs399 L115 kWh/yr6$37
Miele KS 4383 ED edt/cs399 L115 kWh/yr6$37
Haier HCF420W418 L125 kWh/yr6$40

Fridges similar to the Samsung Electronics SDFX3100N

ModelCapacityStarskWh / yr
LG *P-*386
same capacity, same door count, similar star rating
386 L4.5162
LG GP-R386MBL
same capacity, same door count, similar star rating
386 L4.5162
Sub-Zero ICBDEC2450R/L
3% smaller, same door count, similar star rating
377 L4.5160
Sub-Zero ICBDEC2450R Series
3% smaller, same door count, similar star rating
377 L4.5160
Liebherr SRBsdh 5260
same capacity, same door count
384 L6112
Liebherr SRBs*h 5260
same capacity, same door count
384 L6112

Same consumer type, total capacity within 12% of 387 L; ordered by closeness of capacity, then lowest annual kWh.

Other Samsung Electronics models of similar size

ModelStarsEst. cost / yrCompare
Samsung Electronics SRP400RS387 L170 kWh/yr4$54
Samsung Electronics SRP300RW387 L170 kWh/yr4$54

Compare SDFX3100N with another fridge

Samsung Electronics SDFX3100N specifications

Type
Fridge without a separate freezer
Configuration
Upright
Doors
1
Defrost
Variable defrost controller
Ice maker
–
Width
–
Height
–
Depth
–
Annual energy (label)
170 kWh
Star rating index
4.266
MEPS level (maximum allowed)
324 kWh
kWh per adjusted litre
0.439
Country of manufacture
Vietnam

Australian GEMS registration details

Registration number
ARF2888
GEMS registration id
147898
Status
approved, available (self-reported)
Registration expires
12 July 2027
Registered for sale in
Australia, Fiji, New Zealand
Family
–
Designation
Refrigerator
Product class
Class 1
GEMS group
Group 1: refrigerator without a low-temperature compartment, automatic defrost
Regulatory standard
Greenhouse and Energy Minimum Standards (Household Refrigerating Appliances) Determination 2019
Test standard
AS/NZS IEC 62552.3:2018
Consumer type rule
Designated a refrigerator (GEMS groups 1 to 3) with a total volume of 200 L or more

Source: Australian Government Energy Rating (GEMS) registration data, DCCEEW via data.gov.au (CC BY 3.0 AU). Dataset published 25 September 2026; last checked 26 September 2026. Manufacturer: samsung.com. How the derived figures are calculated.