Electronics feel like small potatoes next to heating and cooling, and usually they are. But a living room with a big TV, a console left in instant-on mode, a cable box, a soundbar, and a gaming PC upstairs that never sleeps can quietly add $100–$300 a year in some households. We’ll go through what each device draws, how standby sneaks up on you, how to measure your own setup in a week, and three example households, along with the free settings that do most of the work. The honest answer up front: the screen and the gaming hours are what they are — the cheap wins are idle and standby watts.
The only formula you need
Cost = watts ÷ 1,000 × hours × your rate ($/kWh).
Find your rate on your bill: total supply + delivery charges ÷ kWh used. We use $0.17/kWh as an illustrative US average below; yours may be well above or below. If you’re on a time-of-use plan, evening gaming and TV hours often land in the expensive peak window, so use your peak rate for active hours.
Two kinds of hours matter:
- Active hours — screen on, game running, PC working.
- Idle/standby hours — everything else. That’s usually 16–24 hours a day, so a small idle draw multiplies fast: 1 W around the clock ≈ 8.8 kWh a year ≈ $1.50. A 15 W idle draw ≈ $22 a year. A 50 W idle draw (a PC that never sleeps plus a receiver) ≈ $75 a year.
A quick mental shortcut: every watt that runs 24/7 costs about $1.50 a year at $0.17/kWh. Multiply your late-night idle reading by 1.5 and you have your standby bill in dollars.
Ballpark numbers (illustrative, measure yours)
| Device | Typical active draw | Typical idle/standby | Example yearly cost at $0.17/kWh |
|---|---|---|---|
| 55” LED TV | ~60–120 W | <0.5 W (true standby) | 100 W × 5 h/day ≈ $31 |
| 65”+ TV, HDR/bright mode | ~120–250 W | <0.5–3 W | 180 W × 5 h/day ≈ $56 |
| Current-gen console, gaming | ~100–220 W | ~0.5 W energy-saving; several W to ~15 W rest/instant-on | 200 W × 2 h/day ≈ $25, plus 10 W × 22 h ≈ $14 |
| Console streaming video | ~30–80 W | — | 60 W × 3 h/day ≈ $11 |
| Streaming stick / box | ~2–7 W | <1–3 W | 5 W × 3 h/day ≈ $1 |
| Gaming PC (load / idle) | ~300–600 W / ~60–120 W | ~1–5 W sleep | 450 W × 4 h + 90 W × 20 h ≈ $223 if never sleeps |
| Office PC / laptop dock | ~30–90 W | ~1–3 W sleep | 60 W × 8 h workday ≈ $21 |
| Laptop (charging, in use) | ~20–65 W | <1 W | 40 W × 8 h ≈ $14 |
| Monitor (27”) | ~20–40 W | <0.5 W (more if USB/charging stays on) | 30 W × 8 h ≈ $15 |
| AV receiver / soundbar / sub | ~20–100 W | ~0.5–30 W | 15 W “off” all year ≈ $22 |
| Cable / satellite DVR box | ~15–30 W | often nearly the same | 20 W × 24 h ≈ $30 |
| Wi-Fi router + modem | ~8–20 W combined | always on | 15 W × 24 h ≈ $22 (leave it on) |
These are ranges drawn from manufacturer specs and typical meter readings, not a lab test. Your model, settings, and habits decide your number — which is why the next section exists.
Device-by-device notes
TVs. Screen size and brightness drive the number. A bigger panel at the same brightness draws more, and HDR content pushes LED backlights and OLED pixels harder than standard video. LED/LCD sets with full-array local dimming can use less on dark scenes; OLEDs vary scene by scene. Older plasma TVs and CCFL-backlit LCDs from the late 2000s are the real power hogs and often meter at 200–400 W. The yellow EnergyGuide label on a new TV lists an estimated yearly cost based on 5 hours a day, which makes it easy to compare two models side by side — just remember the label uses a national average rate, not yours.
Game consoles. Draw depends on the game: a demanding title can sit near the top of the range while a menu or an indie game is far lower. Streaming video on a console uses much less than gaming but still far more than a streaming stick. Handheld-style consoles typically draw just a few watts to under 20 W on their dock. The setting that matters most is standby: rest/instant-on modes trade a few watts all day for faster boots, background downloads, and voice wake.
Desktop PCs. The graphics card and processor decide load draw; idle draw depends on how well the system clocks down, how many drives and fans are spinning, and whether RGB lighting and USB devices stay powered. A higher-efficiency power supply wastes a bit less as heat, but on a typical home PC the yearly difference is small compared with simply letting the machine sleep. Laptops are dramatically more efficient than desktops for the same office work.
Monitors. Most draw 15–40 W in use depending on size, brightness, and refresh rate; high-refresh gaming monitors and very bright HDR modes push higher. Built-in USB hubs and USB-C charging can keep a monitor drawing several watts in standby.
AV receivers, soundbars, and subwoofers. Receivers with network or “quick start” features can idle at 10–30 W while looking off. Powered subwoofers with auto-standby usually drop low after a few minutes of silence, but some stay awake if they hear line noise. Soundbars are often under 2 W in standby. These are the devices an advanced power strip handles best.
Check your home before you buy
- Group the cluster. Put everything in the entertainment center (or desk) on one strip.
- Plug the strip into a plug-in energy meter like a Kill A Watt, and reset its kWh counter.
- Live normally for 7 days. Don’t change habits — you want the real baseline.
- Read kWh and hours. kWh ÷ 7 × 365 × rate = yearly cost.
- Measure idle separately. Late at night with everything “off,” read live watts. That number × 8,760 h ÷ 1,000 × rate is your standby bill.
- Unplug devices one at a time while watching live watts to find the offender (often the console, receiver, sub, or cable box).
- Repeat at the desk. Meter the PC, monitors, speakers, and dock as one cluster, then check what happens after the PC has been idle for an hour. If live watts don’t drop, it isn’t sleeping.
- Write the numbers down. Keep a note of the weekly kWh and idle watts so you can confirm a fix actually worked after you change a setting.
If you’d rather leave something in place permanently, an energy-monitoring smart plug or the Kasa HS300 strip reports per-outlet watts in an app. Accuracy is fine for relative decisions, not utility-grade billing. A whole-home monitor can also spot a desk or living room that spikes at odd hours, but it’s overkill for this job alone.
Reading your results
- Weekly kWh mostly comes from active hours? Your bill is driven by screen time and gaming. Settings (picture mode, frame caps) are your only lever short of playing less — and that’s a lifestyle choice, not an efficiency problem.
- Idle watts above ~15–20 W? That’s the cheap win. Find the offender and fix its setting, or put it on a schedule.
- PC idle draw never drops overnight? Fix sleep first; it’s often the single biggest number in the house’s electronics.
- Everything already under ~5 W idle? Congratulations — there’s almost nothing left to chase here. Move on to heating and cooling.
Worked examples: three typical households
These are illustrative scenarios at $0.17/kWh to show where the money usually is. Your meter will tell you which one you resemble.
1. The living-room-only household. A 55” LED TV (90 W, 4 h/day), a streaming stick, a soundbar (2 W standby), and a cable DVR box (18 W around the clock).
- TV: 90 W × 4 h × 365 ÷ 1,000 ≈ 131 kWh ≈ $22
- DVR box: 18 W × 8,760 h ÷ 1,000 ≈ 158 kWh ≈ $27
- Soundbar standby + stick: ≈ $4
- Total ≈ $53 a year. The surprise: the box nobody watches most of the day costs more than the TV. Fix: ask the provider about an eco mode or newer box, or drop it if you mostly stream anyway.
2. The console household. A 65” TV in a bright mode (160 W, 5 h/day), a current console (190 W, 2 h/day gaming plus 1 h/day streaming at 60 W) left in rest/instant-on mode (~10 W the other 21 hours), and an AV receiver that idles at 20 W “off.”
- TV: ≈ 292 kWh ≈ $50
- Console active: ≈ 161 kWh ≈ $27
- Console rest mode: 10 W × 21 h × 365 ÷ 1,000 ≈ 77 kWh ≈ $13
- Receiver idle: 20 W × ~20 h × 365 ÷ 1,000 ≈ 146 kWh ≈ $25
- Total ≈ $115 a year. Free fixes: TV to Standard/Filmmaker mode (often trims a meaningful slice of its draw), console to energy-saving standby (
$12 back), and an advanced power strip so the receiver shuts off with the TV ($20–$25 back). Realistic savings: $30–$50 a year with no change to how much anyone watches or plays.
3. The gaming-PC household. A gaming PC that never sleeps: 450 W for 3 h/day of play and 100 W idle for the other 21 hours, two 27” monitors (60 W combined while the PC is in use, plus 6 W combined because their USB features keep them awake), and desk speakers (5 W always on).
- PC gaming: ≈ 493 kWh ≈ $84
- PC idling 21 h/day: ≈ 767 kWh ≈ $130
- Monitors: ≈ 110 kWh ≈ $19
- Speakers: ≈ 44 kWh ≈ $7
- Total ≈ $240 a year. The idle PC is the biggest line — bigger than the gaming. Setting sleep after 20 minutes could recover most of that $130; turning off monitor USB charging in standby and putting speakers on the PC’s switched strip adds a little more. Realistic savings: $100+ a year from settings alone.
Room-by-room: where the standby hides
- Living room / entertainment center: cable or satellite box, AV receiver, powered subwoofer, soundbar, game console in rest mode, older Blu-ray players. The TV itself is usually innocent in standby unless quick-start is on.
- Gaming den or bedroom: console in rest mode, a second TV, RGB lighting controllers, charging docks, and a PC left on for downloads.
- Home office / desk: desktop PC that won’t sleep, monitors with USB-C charging or hubs that stay powered, powered speakers, printers that idle warm, docking stations, and external drives.
- Kids’ rooms: handheld consoles left on docks, small TVs, and night lights are usually tiny; the exception is a console or PC used late and never shut down.
- Leave alone: router and modem, security cameras, medical devices, smoke/CO alarm power, and anything that must record or update overnight.
Free settings that cut kWh (do these before buying anything)
- TV picture mode: switch from Vivid/Dynamic/Store to Standard, Movie, or Filmmaker mode; lower backlight in a dim room. Turn on the auto-brightness / ambient light sensor if offered.
- TV “quick start” / instant-on: turning it off restores true sub-watt standby on many sets, at the cost of a few seconds of boot time.
- TV sleep timer and “no signal” auto-off: set the TV to turn off after a period with no input, so it doesn’t run all night after someone falls asleep.
- Console power mode: choose energy-saving standby instead of rest/instant-on if you don’t need background downloads or voice wake. Set auto-off after inactivity (e.g., 1 hour) and controller auto-off.
- Console “keep USB powered in rest mode”: turn it off unless you charge controllers overnight that way.
- PC sleep: set sleep after 15–30 minutes idle and display off after 5–10. Check that sleep actually happens (some peripherals and apps block it). A PC left mining, rendering, or downloading overnight is a choice — price it.
- PC power plan: a balanced plan lets the CPU and GPU idle down; a “maximum performance” plan can keep idle draw needlessly high.
- Frame-rate cap / V-sync: capping frames at your monitor’s refresh rate can cut GPU power during play without a visible difference. Many games also have a menu frame cap; a lower cap in menus and lobbies costs nothing.
- Monitor standby features: disable USB charging or “always-on” USB-C power delivery in standby if you don’t need it.
- Streaming on a console vs. a stick: a streaming stick or the TV’s built-in app typically draws a few watts versus a console’s tens of watts for the same show.
- HDMI-CEC: set it so the TV turning off also turns off the soundbar/receiver — or confirm it’s not waking everything back up.
- Cable box: ask about eco/low-power modes or a newer model.
Troubleshooting: when the fix doesn’t stick
| Symptom | Likely cause | What to try |
|---|---|---|
| PC never goes to sleep | A mouse, game controller, or app (game launcher, sync client, media player) is keeping it awake | Check what’s blocking sleep in your OS power settings; stop the mouse from waking it; close launchers that hold “awake” requests |
| PC wakes up in the middle of the night | Network wake, scheduled maintenance, or update timers | Turn off wake-on-LAN if you don’t use it and set maintenance to a time the PC is on anyway |
| Console misses updates after you switch to energy-saving standby | Background downloads need rest mode | Let it update while you play, or turn rest mode back on only before a big release |
| Soundbar or receiver turns back on by itself | HDMI-CEC from the TV, console, or streaming box waking the chain | Turn CEC off on the device that’s waking things, or leave CEC on and make sure the TV is the only “power on” source |
| Advanced power strip cuts the soundbar while the TV is on | The TV’s draw in a dim mode falls below the strip’s sensing threshold | Adjust the strip’s sensitivity if it has a dial, or move the soundbar to an always-on outlet |
| Smart strip schedule turned off the router | Router plugged into a scheduled outlet | Move the router and modem to an always-on outlet or a separate plug |
| Cable box shows “no guide data” each morning | Box powered off overnight and slow to reload | Use the provider’s eco mode instead of a hard cut, or accept the reload time |
| Meter shows higher idle than expected | Something with a bright standby light, a warm power brick, or a sub that never auto-sleeps | Unplug devices one at a time while watching live watts |
Which one should you buy?
- Haven’t measured? → Buy a plug-in meter first (about the cost of a pizza). Skip everything else until you know idle watts.
- Cluster idles under ~5 W? → Stop. You’re done; there’s no money left to chase here.
- Idle 5–20 W and you’ll actually flip a switch? → A plain switched strip you turn off at bedtime is enough.
- The TV is the “boss” of the cluster? → An advanced (autoswitching) power strip that cuts the soundbar, console, and player when the TV goes off — no app, no schedule.
- Idle 20 W+ or you won’t remember? → A smart strip with individually switched outlets (keep the router/streaming box on, schedule the console, receiver, and sub off overnight).
- One big offender (old receiver, DVR, PC that won’t sleep)? → A single energy-monitoring smart plug on a schedule, or fix the device’s settings.
- Gaming PC is the big number? → Fix sleep, cap frames, and accept that play hours cost what they cost. Don’t buy a new PSU or GPU “to save power” — the payback is usually many years.
- Thinking about a new TV to save energy? → Only replace a working set if it’s an old plasma or CCFL LCD that meters 200 W+. Compare the yellow EnergyGuide label yearly cost on new models.
Payback math for common purchases
| Purchase (approx. price) | What it saves when it fits | Rough payback at $0.17/kWh |
|---|---|---|
| Plug-in meter (~$15–$25) | Nothing by itself — it tells you where to act | Pays back the first time it finds a 10 W+ offender |
| Advanced power strip (~$25–$35) | Cuts a 15–25 W cluster for ~18 h/day ≈ $17–$28/year | ~1–2 years |
| Smart plug with energy monitoring (~$12–$30) | Schedules one 15 W offender off 10 h/night ≈ $9/year | ~1.5–3 years |
| Smart strip with per-outlet control (~$50) | Schedules a 30 W cluster off 10 h/night ≈ $19/year | ~2.5–3 years |
| New efficient TV ($400+) | Replacing a 250 W old set with a 100 W one at 5 h/day ≈ $47/year | 8+ years — buy for picture, not for savings |
| New PSU or GPU ($100–$600+) | A few to tens of watts at load | Usually many years; not an energy move |
Our picks
We checked these listings exist on Amazon as of October 2026; specs and prices change, so confirm details on the product page.
- P3 Kill A Watt P4400 plug-in electricity usage monitor (meter your entertainment center or desk for a week) Check price on Amazon
- Smart Strip ECG-7MVR energy-saving surge protector with autoswitching (TV-controlled cluster shutoff; check the listing for which outlets are control, switched, and always-on) Check price on Amazon
- Kasa Smart Wi-Fi Power Strip HS300 (6 individually controlled outlets, per-outlet energy monitoring, 3 USB, 15 A total) Check price on Amazon
- Kasa Matter KP125M energy-monitoring smart plug, 2-pack (if you use Apple Home / mixed ecosystems) Check price on Amazon
- Emporia energy-monitoring Wi-Fi smart plug (budget single-outlet option with timers) Check price on Amazon
Amazon links may earn us a commission as an Amazon Associate at no extra cost to you (disclosure).
Do-nots
- Don’t cut power to your router, modem, or a DVR mid-recording on a schedule unless you’ve accepted the trade-off.
- Don’t hard-cut a console during a system update — schedule outages for times it’s idle, or use its own energy-saving mode instead.
- Don’t hard-cut a desktop PC that’s running. Let it sleep or shut down first; cutting power can corrupt files.
- Don’t daisy-chain power strips or overload a strip; respect the total amp rating.
- Don’t plug space heaters into smart strips or smart plugs meant for electronics.
- Don’t buy new hardware purely to save electricity without doing the payback math first.
What this won’t fix
- Our numbers are illustrative. Models vary widely; your meter reading wins.
- Plug meters can’t see hardwired or 240 V loads, and cheap smart-plug meters are approximate.
- Standby savings are real but small per device. The win comes from a cluster or one bad actor.
- Advanced power strips depend on sensing the TV’s draw; very efficient TVs or dim picture modes can confuse some models.
- In winter, electronics’ waste heat isn’t totally wasted — it slightly offsets heating; in summer your AC has to remove it.
Quick checklist
- Find your real $/kWh on your bill (and your peak rate if you’re on time-of-use)
- Meter the entertainment center for 7 days
- Meter the desk and confirm the PC actually sleeps
- Read late-night idle watts; find the offender
- Fix TV picture mode, quick-start, and auto-off settings
- Set console energy-saving standby and auto-off
- Turn off monitor and console USB power in standby if you don’t need it
- Schedule or switch off clusters idling 20 W+
- Re-meter a week later to confirm the fix
Bottom line
Measure the cluster → fix free settings → cut only the idle watts that measure high → leave play hours alone. For most homes that’s $20–$100 a year with almost no lifestyle change; for a house with a never-sleeping gaming PC and an old DVR, more. Then go after the bigger heating and cooling moves on Start Here. Amazon links may earn a commission as an Associate (disclosure).
Some links on this page go to Amazon, and we earn a commission if you buy, at no extra cost to you. Prices and savings vary by home and utility rate. More in our disclosure.
