c/kWh
Total capacity
582 L
372 L fridge + 210 L freezer
Energy rating
5
Star rating index 5.05
Annual electricity use
355 kWh
Label figure (comparative energy consumption)
Estimated running cost
$117 / year
$9.76 / month ยท $1,172 over 10 years

21% less electricity than the median of 36 comparable 500โ€“599 L side-by-side fridge freezer registrations (452 kWh a year). It uses less than 92% of them. At 33c/kWh that is about $32 a year less than the median, $320 over 10 years.

Uses 38% less than the maximum allowed for its size and type under the minimum energy performance standard (574 kWh a year MEPS level).

Cost = label kWh ร— 33c/kWh in NZD; change the price above to your tariff.

How efficient is it for its size?

kWh per year. Bar: the middle 80% of 36 comparable 500โ€“599 L side-by-side fridge freezer registrations. Dot: this model (below the median). Hover or tab to a mark for its value.

Cohort: every currently registered 500โ€“599 L side-by-side fridge freezer sold in New Zealand, 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.

Omega OSBS583WBX running cost

Per month
$9.76
Per year
$117
5 years
$586
10 years
$1,172

355 kWh ร— 33c/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
582 L
Fresh food (fridge) volume
372 L
Frozen storage volume
210 L
GEMS adjusted volume
747 L
fresh food compartment
372 L gross
freezer compartment
210 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 side-by-side fridge freezers that use less electricity

Same type, total capacity within 12% of 582 L, at least 3% lower annual kWh.

ModelStarsEst. cost / yrCompare
Westinghouse WSE6200SB624 L300 kWh/yr6$99
Westinghouse WSE6240BB619 L300 kWh/yr6$99
Omega OIFSBS541541 L324 kWh/yr5.5$107

Fridges similar to the Omega OSBS583WBX

ModelCapacityStarskWh / yr
Westinghouse WSE6670BA
2% larger, same door count, similar external size, similar star rating
596 L4.5390
Westinghouse WSE6670SA
2% larger, same door count, similar external size, similar star rating
596 L4.5390
Sharp SJ-SHM600P-DS
3% larger, same door count, similar external size, similar star rating
600 L4.5404
LG GS-B600MBM
3% larger, same door count, similar external size, similar star rating
602 L4.5384
Blaupunkt 5SB892SE0AU
same capacity, same door count, similar external size
579 L4442
Chiq CSS55*N**D4E
4% smaller, same door count, similar external size, similar star rating
559 L4.5385
Chiq CSS559NWD4E
4% smaller, same door count, similar external size, similar star rating
559 L4.5385
Midea MERS79IMYEDXAP
2% larger, same door count, similar external size
592 L4438

Same consumer type, total capacity within 12% of 582 L; ordered by closeness of capacity, then lowest annual kWh.

Compare OSBS583WBX with another fridge

Omega OSBS583WBX specifications

Type
Side-by-side fridge freezer
Configuration
Side by side
Doors
2
Defrost
Variable defrost controller
Ice maker
โ€“
Width
911 mm
Height
1,780 mm
Depth
706 mm
Annual energy (label)
355 kWh
Star rating index
5.047
MEPS level (maximum allowed)
574 kWh
kWh per adjusted litre
0.475
Country of manufacture
China

New Zealand E3 registration details

Registration number
ARF3345
GEMS registration id
161122
Status
approved, available (self-reported)
Registration expires
6 May 2029
Registered for sale in
Australia, Fiji, New Zealand
Family
โ€“
Designation
Refrigerator/freezer
Product class
Class 7
GEMS group
Group 5S: refrigerator-freezer, automatic defrost, side by side
Regulatory standard
Greenhouse and Energy Minimum Standards (Household Refrigerating Appliances) Determination 2019
Test standard
AS/NZS IEC 62552.3:2018
Consumer type rule
GEMS group 5S (frost-free fridge freezer, side by side)

Source: E3 programme registration data (EECA, New Zealand) (trans-Tasman E3 registration data published by DCCEEW on data.gov.au, CC BY 3.0 AU). Dataset published 19 September 2026; last checked 20 September 2026. How the derived figures are calculated.