How much does it cost to run a smart power strip?
Smart power strips are surge-protected outlets with built-in intelligence that detect when devices enter sleep or standby mode, then automatically cut power to those outlets rather than letting them drain electricity indefinitely. While the strip itself draws a small amount of power continuously to run its monitoring circuits, the energy it saves by eliminating phantom loads from multiple devices typically far outweighs this overhead.
Smart Power Strip running cost calculator
- Per day
- $0.06
- Per month
- $1.86
- Per year
- $22.34
- CO₂ / year
- 52.6 kg
Based on 131.4 kWh per year. Adjust the price per kWh to match your latest electricity bill for an exact figure.
At 15 watts used 24 hours a day, a smart power strip costs about $0.06 per day, $1.86 per month and $22.34 per year on an average rate of 17¢ per kWh — roughly 131.4 kWh and 52.6 kg of CO₂ over a year. Enter your own electricity rate and usage in the calculator above for a figure matched to your bill.
The core energy cost of a smart power strip comes from its always-on control electronics—the processor, sensors, and wireless components that monitor your devices and decide when to switch outlets on or off. Unlike a basic surge protector, a smart strip never truly sleeps; it needs power to watch for activity from plugged-in devices and respond to commands from your smartphone or automation routine. This is why the strip's own consumption matters even when you're not actively using the devices it controls. The real payoff arrives when you consider what it prevents: a single entertainment center with a TV, soundbar, streaming device, and gaming console might draw 5 to 15 watts continuously just sitting idle, day after day. Multiply that across even three such stations in a home, and the phantom drain adds up quickly.
Placement strategy makes a practical difference in how much value you'll actually get. A smart power strip makes the most sense in rooms where devices genuinely enter true standby states—think home offices with monitors and printers, bedroom entertainment setups, or media cabinets. These are places where you might not use the equipment for 12 to 18 hours daily but the devices would previously consume power the entire time. Conversely, putting a smart power strip under your refrigerator or charging a continuously-used computer makes less sense; those devices either need constant power or don't have meaningful standby drain. The sweet spot is anywhere you have a cluster of devices that all go unused together—when you turn off your desktop computer at night, the monitor, speakers, external drives, and desk lamp ideally all power down simultaneously rather than sitting in partial-draw limbo.
When evaluating a smart power strip model, look for outlets grouped into separately controlled zones rather than one on/off switch for everything. This prevents the strip from cutting power to devices that shouldn't sleep, like a printer or external hard drive you want instantly available. Check the control method too: some strips rely entirely on smartphone apps and cloud connectivity, which means they're useless if your internet goes down or if you just want a simple timer-based schedule. The best models offer both smart features and physical buttons, plus a mix of always-on outlets and controllable ones. Power requirements vary by brand—some sophisticated models with Wi-Fi and voice control draw slightly more than bare-bones strips, but the difference is typically minor. Energy guides or spec sheets should list the strip's own power draw explicitly; compare this against the phantom load figure for devices you'd actually plug in.
One common misconception is that smart power strips are fire hazards or create electrical problems. Modern smart strips include the same surge protection and thermal safeguards as traditional ones, and their switching happens at microsecond speeds with no perceptible pop or surge. Another mistake is over-reliance on automation: if your strip's automation rules are poorly configured—say, cutting power to a network-attached storage drive every night, then leaving it powered on all day—you may not see the savings you expected. Periodically audit your strip's outlets and usage patterns to make sure the devices that are powered off are genuinely the ones causing phantom drain, not devices that need 24/7 availability. Also consider compatibility: if your strip uses a proprietary app or ecosystem incompatible with your other smart home devices, you'll end up managing it separately rather than as part of a unified routine.
Frequently asked questions
- Does a smart power strip use enough power itself to make it pointless?
- No. While the strip's internal electronics do consume power continuously, a typical smart strip draws far less than a single idle device—think about 15 watts compared to the 5 to 25 watts a entertainment system might waste standing idle. The break-even point is usually reached within days if you have even two or three devices that spend significant time in standby. If you're controlling a single low-drain device, the math shifts, but for clusters of electronics, the savings easily justify the strip's own consumption.
- What's the difference between a smart power strip and a regular surge protector?
- A regular surge protector passively blocks voltage spikes but delivers power to any plugged-in device all the time—so devices can still draw phantom power. A smart power strip actively monitors devices and can cut power to selected outlets when those devices aren't needed, plus it typically offers app control, timers, or automation. You get surge protection plus active energy management. The trade-off is that smart strips cost more and require setup, whereas surge protectors are plug-and-play.
- Can I plug any device into a smart power strip?
- Most devices, yes—but not all should be. Refrigerators, always-on security cameras, medical equipment, and servers need continuous power, so smart outlet control would break them. Printers and external drives benefit from being plugged into always-on outlets on the strip so they're available instantly. The strip itself can handle the total load listed on its label, but connecting a space heater or other high-draw appliance to a smart outlet defeats the automation since that device shouldn't be cut off. Read the manufacturer's guidance and use your judgment about which outlets to set to automatic control.
- Do I need Wi-Fi or a smart home hub for a smart power strip to work?
- It depends on the model. Some smart strips are purely local—they use a physical remote or buttons to switch outlets on and off, plus simple timer functions, with no internet required. Others rely on cloud connectivity and app control, meaning they need Wi-Fi to function. A few work with Bluetooth for nearby control, or ZigBee/Z-Wave for a smart home hub. If reliability and independence from internet outages matter to you, choose a model that offers local control or basic timer functions that work without connectivity.
- How do I know which devices on my strip are actually wasting power?
- Some smart strips include individual outlet energy metering so you can see real-time or historical power draw per outlet. If your model doesn't, use a plug-in power meter (or phone app-enabled meter) to check phantom draw on each device individually, then sum them up to see the total standby load your cluster represents. Devices like laser printers, gaming consoles, cable boxes, and audio equipment tend to have the highest phantom draws, while LED lights and USB chargers tend to be minimal. The bigger the phantom load, the stronger the case for smart outlet automation on that device.
- Should I leave the smart power strip on all the time?
- Yes, the strip's monitoring electronics need continuous power to function. If you switch off the strip at night using a traditional power switch, it becomes a dumb surge protector and can't automate or cut power to devices anymore. Some people do choose to completely power down high-cost electronics via the strip during long periods of non-use—like turning it off before a two-week vacation—but day-to-day operation works best when the strip itself stays powered so it can manage the plugged-in devices automatically.