Do you ever wonder what’s secretly chewing away at your wallet every month—without leaving even a thank-you note? If your answer is “My teenager’s phone bill,” you’re close! But when it comes to household electricity, most of us have a silent energy hog right under our noses. Let’s pull back the curtain and see which device is the real culprit behind sky-high electricity bills (spoiler: it’s probably not your humble microwave).
The High Price of Home Comfort
Our homes are overflowing with electrical devices and appliances that, while super handy, can rack up an impressive (read: terrifying) electricity bill. On average, the combined electricity consumption of household equipment climbs to a hefty 7,187 kWh per year. If you’re doing the math in your head—or just glancing at your annual statement—that equates to a bill of €1,808 (according to My Energy Manager). Ouch!
Hellio, in partnership with recommendations from Ademe (the French Agency for Ecological Transition), emphasizes the importance of identifying your energy-guzzling devices. Once you know where your electricity is going, you can get strategic about practicing eco-friendly habits, saving precious euros and electrons alike.
And the Energy Guzzler Award Goes To…
Who’s the biggest electricity spender at home? In the ultimate showdown—heaters, hot water systems, ovens, refrigerators, dishwashers—who wins?
Based on data from Ademe and My Energy Manager, a home’s total electricity use can skyrocket depending on the types, power, models, and age of your devices. But not all appliances are created equal!
- Heating systems (radiators and electric water heaters) take a whopping lead, accounting for an average of 47% of your annual electricity bill. That’s almost half your costs spent on staying warm and having a hot shower.
- Cooling and refrigeration devices come in second, eating up 11% of the average bill.
- Audio-visual equipment, as much as we love them, account for 7%.
- Washing and drying appliances contribute 6%.
To put things into perspective, those appliances you use daily without much thought—like your fridge or TV—may not seem like much individually, but together, they can represent a sizeable chunk of your bill.
Not All Devices Are Villains
Before you unplug everything in a fit of energy-saving zeal, let’s give credit where it’s due: some gadgets are pretty reasonable. The least energy-consuming items in your home include:
- The trusty fan (5 kWh/year, €1.26 per year)
- Your beloved coffee maker (42 kWh/year, €10.56 per year)
- The microwave oven (39 kWh/year, only €9.81 per year)
Making better choices can be as simple as checking the energy label when shopping. These labels are a genuine helping hand when you’re comparing devices and want to prioritize savings—and maybe even the planet!
The Hidden Army of Devices—and the Role of Isolation
According to Ademe, the average household has a jaw-dropping 99 devices! If you’re French, you likely possess up to 15 digital gadgets (computers, tablets, screens, internet boxes, and the rest). When you tally up these digital soldiers, they can account for up to 10% of your total electricity bill. Individually, they seem innocent; side by side, they turn into a quiet, consistent drain.
But here’s a twist: high consumption isn’t always just about having energy-hungry gear. A home with poor insulation can also dramatically increase your energy demands and, by extension, your bill. Sometimes, you’re not just combating bad device behavior—you’re battling the building itself!
Our team of journalists and writers covers every energy topic you can imagine: energy renovation, financial aid, new laws… and we’re always striving to keep you informed and up-to-date. Got a question or a doubt about anything you’ve read? Don’t hesitate to reach out to us—we’d love to put your mind (and your electricity bill) at ease!
In short: If your electricity bill is making you sweat, don’t rush to blame the coffee maker—focus first on the big-ticket items like heating systems, and always check energy labels before buying. Simple actions and mindful choices can shrink that eye-watering bill, all while keeping your home comfortable and your coffee hot. That’s what we call a win-win!

Based in New York, Josh is the creative mind behind Lanco Handmade Furniture.
Passionate about timeless design and fine craftsmanship, he transforms high-quality materials into pieces that are both functional and artful.
With a keen eye for detail and a love for natural textures, Josh creates furniture meant to bring warmth, character, and lasting beauty to any space.




