The hidden energy vampires in your home

Right now, devices throughout your home could be quietly draining power. Your TV's standby mode, a phone charger, the microwave clock - they're all consuming electricity 24/7, even when you think they're "off."

It's called standby power, and it's more significant than most people realise.

What Is standby power?

When you press ‘off’ on your TV remote or shut down your computer, these devices aren't completely powered down. They're in standby mode - maintaining just enough power to keep certain functions running in the background. This allows them to start up quickly when you need them, keep apps ready to go, or store information in short-term memory.

Your TV keeps its remote sensor active so it can respond instantly when you press a button. Your computer stays partially awake to download updates or respond to wake commands. Your microwave keeps its clock running and settings stored. Even your phone charger draws a tiny amount of power when plugged in but not charging anything.

It's convenient - but it comes at a cost.

The real impact

According to the Australian Government's energy.gov.au, standby power can account for up to 3% of your household energy use and could cost you up to $100 a year [1]. Some estimates suggest it could be even higher - Red Energy reports standby power drawing an average of 6% of total household electricity use [2].

A 2006 Australian government study found that standby power accounted for around 10-12% of residential electricity consumption at that time [3]. While modern devices are more efficient thanks to regulations (most new devices are now limited to 1 watt in standby mode) [4], many Australian homes still have older appliances quietly consuming power.

Every watt of continuous standby power consumes about 9 kilowatt-hours of electricity per year - and when you have multiple devices, those watts add up fast [5].

The common culprits

Entertainment systems are often the biggest offenders. Gaming consoles, set-top boxes, and older home entertainment equipment can draw several watts continuously. While newer models are more efficient, older devices can use significant power even when "off."

Desktop computers and printers left on overnight continue drawing power in sleep mode. Even when you think they're off, many computers maintain a small current to enable quick start-up.

Appliances with digital displays - microwaves, coffee makers, washing machines - keep clocks and displays running constantly. Each might only use a small amount individually, but collectively they contribute to your standby power drain.

How to find your vampires

You don't need to guess. A plug-in energy monitor (available from hardware stores for around $20-40) lets you measure exactly what each device uses. Plug it in between the wall socket and your device to see real-time power consumption.

This small investment can quickly identify which devices are worth addressing first.

Practical solutions

Power boards with switches are your simplest defense. Plug multiple devices into one board, then flip one switch to cut all standby power when you're done. Perfect for entertainment centers or home office setups.

Smart power boards automatically cut power to peripheral devices when you turn off the main device. When your TV goes off, the game console and speakers power down too.

Simple habits make a big difference. Unplug phone chargers when not actively charging, turn off power boards when leaving for work, and shut down computers rather than leaving them in sleep mode overnight.

The renter's advantage

For renters and apartment dwellers with limited control over bigger efficiency improvements like insulation or appliance upgrades, tackling phantom power is one area where you have complete control. These solutions require minimal investment and zero landlord permission.

While modern devices are becoming more efficient, Australian homes with older appliances can still see meaningful savings by addressing standby power - and every bit helps when energy costs keep rising.

References:

1. Australian Government Department of Climate Change, Energy, the Environment and Water. (2025). Appliances - Standby Power. energy.gov.au/households/appliances 

2. Red Energy. (2024). How Much is the Average Electricity Bill in Australia? redenergy.com.au/living-energy/smart-homes/how-much-is-the-average-electricity-bil l

3. Energy Rating. (2006). Standby Power – Current Status October 2006, Report No 2006/10. energyrating.gov.au

4. International Energy Agency. (2010). One Watt Initiative - Standby Power Standards.

5. YESS. (2024). The Hidden Cost of Vampire Power.yess.net.au/free-standby-power-controller