Name: Panasonic TN-50W70BGZ
Brand: Panasonic
SKU: ZTV0736

Electricity pricec/kWh

TV onhours a day

Screen size: 50"; 126 cm, LED-backlit LCD
Energy rating: 4.5
Annual electricity use: 267 kWh; Label: 295 kWh · 0.07 kWh per hour on
Estimated running cost: $88 / year; $882 over 10 years

Power when on: 73 W · 0.4 W standby

4% more electricity than the median of 279 comparable 48–50 inch TV registrations (284 kWh a year on the label basis). It uses less than 34% of them. At your rates that is about $3 a year more than the median, $33 over 10 years.

How efficient is it for its size?

median 284219358

kWh per year. Bar: the middle 80% of 279 comparable 48–50 inch TV registrations. Dot: this model (above the median). Hover or tab to a mark for its value.

Cohort: every currently registered 48–50 inch TV sold in New Zealand, counted once per registration, on the label usage basis.

Tvs that use less electricity

Same type and size group, at least 3% lower annual kWh on the label basis.

Model	Screen	Stars	kWh / yr	Est. cost / yr	Uses less than
LG 50UJ660H5LD50"141 kWh/yr	50"	8	141	$47	100% of similar
LG 50UM662H4LC50"149 kWh/yr	50"	7	149	$49	99% of similar
Konic KUD50SG696AS50"172 kWh/yr	50"	7	172	$57	98% of similar
Philips 49HFL5011T/1249"175 kWh/yr	49"	7	175	$58	98% of similar
Coocaa 50Q66CK50"175 kWh/yr	50"	7	175	$58	98% of similar

kWh and cost on the label usage basis; the product page adjusts to your usage.

Tvs similar to the Panasonic TN-50W70BGZ

Model	Screen	Stars	kWh / yr	Est. cost / yr	Uses less than
Sony K-50S3050"310 kWh/yr	50"	4.5	310	$102	27% of similar
Chiq U50QM1050"265 kWh/yr	50"	5	265	$87	66% of similar
Veon VNG22F502250"280 kWh/yr	50"	5	280	$92	52% of similar
Toshiba 50C350MP50"269 kWh/yr	50"	5	269	$89	64% of similar
Aoa LTW50UHD50"270 kWh/yr	50"	5	270	$89	62% of similar
Chiq U50QM1050"276 kWh/yr	50"	5	276	$91	58% of similar
Konic KUD50GS677AM50"327 kWh/yr	50"	4	327	$108	22% of similar
Sharp 4T-C50DK1X50"312 kWh/yr	50"	4.5	312	$103	25% of similar

kWh and cost on the label usage basis; the product page adjusts to your usage.

Compare TN-50W70BGZ with another TV

Panasonic TN-50W70BGZ specifications

Screen size (diagonal): 125.8 cm (49.5")
Screen area: 6,758 cm²
Screen technology: LED-backlit LCD
On-mode power: 72.7 W
Passive standby power: 0.40 W
Active standby power: 0.00 W
Power supply: Internal
Tuner: Analogue/Digital
Annual energy (label): 295 kWh
Star rating index: 4.85
Country of manufacture: China

Other model numbers on registration ZTV0736

New Zealand E3 registration details

Registration number: ZTV0736
GEMS registration id: 170963
Status: approved, available (self-reported)
Registration expires: n/a (NZ registration)
Registered for sale in: New Zealand
Family: TN-50W series
Regulatory standard: AS/NZS 62087.2.2:2011
Test standard: AS/NZS 62087.1:2010

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 20 September 2026; last checked 20 September 2026. Manufacturer: panasonic.co.nz. How the derived figures are calculated.