Talking about TVs 5 January at 12:48AM in Energy 22 replies 1.2K views

Jami74

Thanks to Tapo110 and a bit of Googling I'm realising that our TV is possibly quite energy heavy. Partner has it on a lot and I don't think any amount of negotiating/nagging is going to change that, so it is in my best interests to find the most cost effective way of satisfying his TV need.

The TV is a 40inch LED and the sticker on the back says Power Consumption 190W. Tapo110 says each day we use between 1kWh and 2.5kWh (depending on work patterns) and a daily average of 1.8kWh. We're on E7 with non-consecutive hours. Day rate (EDF, inclusive of VAT) is 54.97p and most of the watched hours are on the day rate putting the daily cost at about 99p (£30 a month!).

A Samsung 40inch LED TV on Argos says in HDR mode power demand is 95W. Would I be right in thinking that it would use 50% less energy? In which case at todays energy prices it would save about £15 a month and pay for itself in much less than two years? 

ariarnia

before buying a new tv have you tried looking at the menu settings for your current tv? 

our tv has a power management option where you can change the standby settings (if it stays connected to the internet when 'asleep' and how quick it turns on). might make a difference?

if not then maybe also if you could sell yours and put it towards the price of a new one the payback time would be less. if you can find one that's cheap to run of course (hopefully someone else can help you with that bit). 

Scot_39

A TV doesn't just have one set power consumption when active / on - but a range.

It has different picture modes and ability to control brightness/contrast etc -  and in the case of my LCD - a backlight brightness adjust - suspect LED's no different.

Cannot speak for all Samsung TVs - but logically - expect a fair amount of variation - depending on mode / brightness etc.

Based on my smart meter IHD my now old Samsung 40" LCD C750 series (note NOT LED) - uses about 135W when in standard mode. The manual for it quotes the exact same figure - 135W - for Standard mode.

But if I put on the dynamic mode - brighter etc - the usage goes up another 40-45W - to around 175-180W.

The sticker on the back of set - says 190W.

So that will likely be the expected maximum for your set - not the actual.

 

Can't you just read - or get the OH to read - the tapo after say an 1 hour of TV use or get it to tell you the instantaneous power being taken ?

I would have expected a backlit with LED to use a bit less than my LCD - it was a major part of the reason for the switch - so not surprised if Argos says 95W for modern set of a similar size.

But suspect again that might be the Samsung manual quoted figure for that mode - and not necessarily the max.

Would be surprised if switching from one 40" LED to another 40" LED - would make that major a difference. 

Have you tried looking at their website for the specific models - old and new ?

e.g. for the 4K LED 43" 7100 series - their web site has a maximum value of 125W - so again by implicaton in some modes could be less. The Argos site for the same model quotes - 70W standard, 103W in HDR mode.

One may be less than your old set - the other more etc.

Mstty

It is a fair point to raise.

Most TV's out the box are setup either in demo or what you might call a vivid high colour mode. Reason being they want you to enjoy the first picture and think......wow

However that can be a bit much for some people and will use close to the maximum power the TV is rate to run.

Best thing is to choose a standard picture and look for settings on Google as many TV aficionados post their settings and chose an eco setting if you can.

Sometimes half the power used.

InvertedVee

@Jami74 This year I replaced a 2010 Toshiba 40" TV which consumed 150W with a new Samsung 32" TV which consumes 65W. It will pay for itself in about 3 years.

markin

Out the box is set for shop display, I can usually go down 80% from that.

MattMattMattUK

I have a 65 inch Sony Bravia 4k OLED, it is rated at 134w normal, 146w HDR, however in normal usage it tends to move around in an 60-120w window and averages 68w when in HDR use (at 4k HDR 120hz it will go higher). The biggest difference really is in standby and this is the same with all modern TVs, they are rated at 0.5w, but that is with WiFi turned off, with WiFi on and wake on app etc. in the background mine uses 25w and that seems pretty standard, they tend to drop to around 15w with WiFi off but still networked and smart, although they will drop back to their specified 0.5w (mine drops to 0.3w) with WiFi off and all smart wake, wake on app etc. turned off. 

Spoonie_Turtle

Our 43" 4K LED LG smart TV draws 40-60W (tends to be higher when streaming than when watching broadcast TV).  It's G rated for efficiency, says 66kWh/1000hrs or 85 in HDR.  But on standby our monitor doesn't register any power draw, which if correct means it's <0.1W.  It connects very quickly to the internet once turned back on, but we don't have peripherals connected or voice mode enabled which probably helps lower the power draw.

Qyburn

We have a Sony 43" LED TV, it was a warranty replacement this year but I think actually a 2021 model. Measured power consumption is 40W, but we don't use any "smart" features.

Coffeekup

Jami74 said:

Thanks to Tapo110 and a bit of Googling I'm realising that our TV is possibly quite energy heavy. Partner has it on a lot and I don't think any amount of negotiating/nagging is going to change that, so it is in my best interests to find the most cost effective way of satisfying his TV need.

The TV is a 40inch LED and the sticker on the back says Power Consumption 190W. Tapo110 says each day we use between 1kWh and 2.5kWh (depending on work patterns) and a daily average of 1.8kWh. We're on E7 with non-consecutive hours. Day rate (EDF, inclusive of VAT) is 54.97p and most of the watched hours are on the day rate putting the daily cost at about 99p (£30 a month!).

A Samsung 40inch LED TV on Argos says in HDR mode power demand is 95W. Would I be right in thinking that it would use 50% less energy? In which case at todays energy prices it would save about £15 a month and pay for itself in much less than two years? 

You are correct... I replaced my 46" 11 year Samsung (145w) with a 40" Panasonic (65w) a few months ago.. glad I did it's saved between 5-15 kwh's a month. As you say it'll pay for itself in a couple of year's, sooner with the price p/unit going up.

I did as others have said in this thread and turned down brightness, vividness, and other tweaks it made little difference to usage and the picture quality was was so poor it was hard to watch.

Another thing to look into is if you have a sky HD box, they can rack up energy use just in standby.

Lorian

Turning down the backlighting is usually the most fruitful for savings. Followed by turning off any wake from WIFI options.