How Much Power Does a TV Use? (Cost Breakdown)
Modern televisions have become remarkably energy efficient thanks to LED and OLED technology. A 55-inch LED TV today uses a fraction of the power that a similarly-sized plasma TV consumed a decade ago. However, the TV is rarely operating alone — it's typically surrounded by a soundbar, cable or satellite box, streaming device, and one or more gaming consoles, all of which contribute to a combined "phantom load" that runs 24/7. In this guide, we break down TV power consumption by size and technology, compare display types, and calculate the real cost of running your entire entertainment setup.
Calculate Your TV Running Cost
Pre-filled with average 55" LED TV wattage (100W)
Estimated Cost
TV Power Consumption by Display Technology
The type of display technology your TV uses is the biggest factor in its power draw. LED-backlit LCD TVs remain the most efficient mainstream option, while OLED TVs vary based on content brightness. If you're still using an old plasma, you're paying significantly more in electricity than you need to.
| Display Technology | Typical Size | Average Power Draw (Watts) | Description |
|---|---|---|---|
| LED/LCD (Edge-lit) | 55" | 60W – 90W | Most common and most efficient. Single backlight behind the entire panel. |
| LED/LCD (Full-Array) | 55" | 80W – 120W | Multiple backlight zones for better contrast. Slightly higher draw than edge-lit. |
| QLED (Samsung/TCL) | 55" | 90W – 140W | Quantum dot enhanced LED. Brighter colors push slightly higher power use. |
| OLED (LG/Sony) | 55" | 80W – 150W | Self-emissive pixels. Power varies hugely — dark content uses less, bright HDR content uses more. |
| Legacy Plasma | 50" | 300W – 500W | Obsolete technology. Draws 3–5x more than modern equivalents. |
TV Power Consumption by Screen Size
Larger screens require more backlighting (for LED/QLED) or have more self-emitting pixels (for OLED), which means higher power draw. Here's how size affects consumption for modern LED TVs.
| Screen Size | Average Power Draw (LED) | Annual Cost (5 hrs/day)* |
|---|---|---|
| 32 inch | 30W – 50W | ~$4 |
| 43 inch | 50W – 80W | ~$6 |
| 55 inch | 80W – 120W | ~$9 |
| 65 inch | 100W – 150W | ~$12 |
| 75 inch | 120W – 180W | ~$15 |
| 85 inch | 150W – 220W | ~$18 |
*Annual cost at $0.16/kWh US average.
Going from a 55-inch to a 75-inch TV increases power draw by roughly 40–60%. That translates to only about $5–$6 more per year in the US — a trivial amount. Screen size alone should not be a major electricity concern for modern LED TVs.
Cost to Run a TV Over Time
Here is the actual cost for a 55-inch LED TV (100W) at a US electricity rate of $0.16 per kWh.
| Timeframe | Cost at 3 Hours/Day | Cost at 5 Hours/Day | Cost at 8 Hours/Day |
|---|---|---|---|
| 1 Day | $0.05 | $0.08 | $0.13 |
| 1 Month (30 Days) | $1.44 | $2.40 | $3.84 |
| 1 Year | $17.52 | $29.20 | $46.72 |
Even a TV-heavy household watching 8 hours a day pays under $50 per year for the TV alone. The TV itself is genuinely one of the more efficient appliances in a modern home.
TV Running Cost by Country
Here's the annual cost of running a 55-inch LED TV (100W) at 5 hours/day by country.
| Country | Avg. Rate (per kWh) | Annual Cost (5 hrs/day) |
|---|---|---|
| United States | $0.16 | ~$29 |
| Canada | $0.13 | ~$24 |
| Australia | A$0.32 | ~A$58 |
| United Kingdom | £0.24 | ~£44 |
| Germany | €0.31 | ~€57 |
| Netherlands | €0.29 | ~€53 |
| France | €0.25 | ~€46 |
The Real Cost: Your Entire Entertainment Center
While the TV itself is efficient, the combined standby draw of an entire entertainment center is often overlooked. Here's what a typical setup draws when everything is "off" but still plugged in.
| Device | Standby Draw | Annual Standby Cost* |
|---|---|---|
| Smart TV | 0.5W – 1W | ~$1 |
| Cable/Satellite Box | 15W – 25W | ~$25 |
| Soundbar | 2W – 5W | ~$4 |
| Gaming Console (Instant-On) | 5W – 15W | ~$12 |
| Streaming Stick (Roku/Fire) | 2W – 3W | ~$3 |
| AV Receiver | 5W – 15W | ~$12 |
*Annual cost at $0.16/kWh, 24/7 standby.
A fully equipped entertainment center can draw 30–60W in standby around the clock. That's $40–$80 per year in phantom power — often more than the TV uses during actual viewing. A smart power strip that shuts everything off when the TV turns off is the easiest fix.
How to Reduce Your TV's Electricity Cost
Modern TVs are already quite efficient, but there are a few settings that can reduce power draw further.
Reduce backlight brightness. The backlight is the single biggest power consumer on LED/QLED TVs. Dropping brightness from 100% to 50% can reduce power draw by 20–30% with minimal visual impact in a normally-lit room.
Enable Eco mode or auto-brightness. Most modern TVs have an ambient light sensor that adjusts brightness automatically. This reduces power draw in dim rooms and can save 10–20% annually.
Use a smart power strip. Plug your entire entertainment center into a smart power strip that cuts standby power when the TV turns off. This eliminates $40–$80 per year in phantom loads from cable boxes, soundbars, and gaming consoles.
Turn off "Quick Start" on streaming devices. Many streaming sticks and smart TV features keep processors active for instant-on. Disabling this saves 2–5W of continuous draw per device.
Upgrade from plasma. If you're still using a plasma TV, upgrading to a modern LED or OLED will cut your TV's electricity consumption by 60–80%. At $30–$60 per year in savings, the new TV starts paying for itself within a few years.
Frequently Asked Questions
Modern smart TVs draw under 1W in standby — costing less than $1 per year. The TV itself isn't the problem. The bigger concern is the entire entertainment center: a TV, cable box, soundbar, and gaming console together can draw 30–60W in standby around the clock. Rather than unplugging individual devices, a smart power strip that cuts power to everything when the TV turns off is the most practical solution.
More, yes — but not as dramatically as you might expect. A 75-inch LED TV draws roughly 120–180W, while a 55-inch LED draws 80–120W. The relationship isn't perfectly linear because larger panels use more efficient backlighting zones. Going from 55 to 75 inches typically increases power draw by about 40–60%, which translates to only $5–$6 more per year in the US.
It depends entirely on what you're watching. OLED TVs are self-emissive — each pixel produces its own light and can be individually turned off. During dark scenes (movies, dark video games), OLEDs actually use less power than LED TVs because dark pixels consume zero electricity. During bright, colorful content like sports or HDR highlights, OLEDs can draw more than equivalent LED models. On average over mixed content, a 55-inch OLED draws roughly 80–150W.
A typical 55-inch LED TV watched for 5 hours a day costs roughly $9 per year in the US at average electricity rates. A larger 75-inch model costs about $15. Even the most power-hungry large OLED or QLED TVs rarely exceed $25 per year for typical viewing habits. The TV is one of the more efficient appliances in a modern home.
Yes. HDR (High Dynamic Range) content pushes the TV's backlight or pixel brightness significantly higher to produce brighter highlights and wider color ranges. On LED/QLED TVs with full-array local dimming, HDR can increase power draw by 20–40% during bright scenes. On OLED TVs, the increase is more modest at 10–20% because only the bright pixels ramp up.
Compared to modern alternatives, yes. A 50-inch plasma TV from the 2010s draws 300–500W — roughly 3 to 5 times more than an equivalent modern LED TV. If you still watch a plasma for 5 hours a day, it could be costing you $30–$60 per year in electricity alone. Upgrading to a modern 55-inch LED TV would cut that to roughly $9 per year — a saving that compounds every year you own the new set.
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