How Much Electricity Does a TV Use?

Discover the energy consumption of TVs in the UK. Learn how much electricity a TV uses per hour, factors affecting their energy usage and more.

In the age of binge-watching and 24-hour news cycles, our televisions have become steadfast companions. But as energy prices climb higher than a kite on a blustery day, it's only natural to ponder, "How much electricity does a TV use?" Fear not, dear reader, for we're about to embark on an illuminating journey through watts, costs and screen sizes.

How Much Electricity Does a TV Use Per Hour

Televisions, much like the assortment of biscuits at a tea party, come in various shapes, sizes, and appetites for energy. To determine how much electricity your TV uses per hour, consider the following:

  • Power Rating (Watts): This indicates the energy consumption of your TV. For instance, a 55-inch LED TV might have a power rating of around 81 watts.​

  • Electricity Tariff (pence per kWh): The amount your energy provider charges per kilowatt-hour. As of January 2025, the average UK rate is approximately 24.86p per kWh.​

Calculation:

  1. Convert Watts to Kilowatts: 81 watts ÷ 1,000 = 0.081 kW​

  2. Determine Cost per Hour: 0.081 kW × 24.86p/kWh = approximately 2.01p per hour​

Therefore, watching your 55-inch LED TV for an hour would cost just over 2p.​

Factors Influencing TV Energy Consumption

Several elements can affect how much electricity your TV uses:

  • Screen Size: Larger screens generally consume more power. For example, a 65-inch LED TV may use around 124 watts, costing approximately 3.08p per hour to run.​

  • Display Technology: Different technologies have varying energy efficiencies. OLED and QLED TVs often consume less power than older plasma models.​

  • Usage Habits: The more hours you spend glued to the screen, the higher your energy consumption.​

  • Standby Mode: Even when turned off, TVs can draw a small amount of power in standby mode, typically between 0.5 to 3 watts. Over time, this can add up, costing around £12 annually.

Tips to Reduce Your TV's Energy Consumption

To keep your viewing experience delightful without dimming your finances:

  1. Turn Off When Not in Use: It sounds simple, but ensuring your TV is off when you're not watching can save a significant amount over time.​

  2. Adjust Brightness Settings: Lowering the brightness can reduce power consumption and be gentler on your eyes.​

  3. Utilize Energy-Saving Modes: Many modern TVs come equipped with eco-settings that optimize energy use.​

  4. Unplug or Use Smart Plugs: To combat standby power consumption, unplug your TV or use a smart plug to cut off power completely when not in use.​

Conclusion

So, how much electricity does a TV use? While individual consumption varies based on factors like screen size, technology, and viewing habits, understanding these elements can help you manage and potentially reduce your energy usage. By adopting energy-efficient practices and perhaps investing in a more efficient model, you can enjoy your favourite programmes without the shock of an inflated energy bill. Now, that's what we call must-see TV.​