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Which? home >
Energy >
Energy saving products >
Energy-saving appliances >
Energy-efficient TVs

Energy-saving appliances Energy-efficient TVs

TVs with energy-saving features like ambient light sensors can help reduce bills

If you love watching TV, energy costs can rack up – especially if you go for a model with a big screen. As a rule, the bigger the TV, the more energy it's likely to use.

However, even TVs the same size can vary in energy use. Our tests show that annual energy costs for 40-inch TVs range from £14 to £42.

LCD TVs use less energy than a plasma screen of the same size, but for even lower bills look out for LED TVs. These are even more energy efficient.

Read our LED, LCD and plasma TV reviews, based on in-depth testing, to discover the best and worst models. Use our TV energy running costs calculator to compare how much different models costs to run.

Best energy-saving TVs

Below, we've picked out four great Energy Savers - Best Buy TVs that score five stars for energy use when switched on, taking screen size into account. Plus we've selected other energy-efficient 32 and 40-inch Best Buy TVs. Which? members can log in to reveal our recommendations in the table below.

If you're a Which? member, make sure you're logged in to unlock the table data. If you aren't, try a trial membership for £1 to get instant access to all our online content.

Energy Saver TVs
TV model	Type & Size	Annual energy cost	Score	Pros and Cons

Other energy-efficient Best Buy models
TV model	Type & Size	Annual energy cost	Score	Pros and Cons

Save energy watching TV

Keep an eye out for these useful energy-saving features.

Ambient light sensors

Ambient light sensors - the most ingenious of all energy-saving TV features - can help you make big energy savings, and are now featured on most TVs of 32 inches and over. The sensor adjusts the backlight of the TV according to how dark or light the room is. If you watch the TV with the lights off, they can slash power use by around 30-50%.

Screen blanking

Most new TVs can blank the screen when tuned in to digital radio channels, and switch themselves off if left idle for too long. Sony has also developed energy-saving presence sensors that turn the picture off if it senses that nobody is in the room. There is even a screen warning to alert particularly static couch potatoes.