You turn off the light when you leave. You switch off the TV. You think you’re being careful.
And yet your electricity bill doesn’t come down.
That’s normal. Because the real sources of waste in a home aren’t the ones you can see. They’re silent, constant, and almost impossible to track with the naked eye.
Here are the 5 main culprits — and what home automation can do about each one.
1. The air conditioning that runs for nothing
It’s the number one culprit in the Caribbean, no contest.
You leave a room. The AC stays on. You head out without remembering to turn it off. You come back two hours later to an ice-cold house nobody was in.
Multiply that by 365 days and it’s a considerable amount of money going straight down the drain.
What Yubii does: The system detects your presence and adjusts automatically. Empty room — AC dialed down. You’re home in 20 minutes — it gradually picks back up. You stop thinking about it. It doesn’t.
2. The shutters that let the heat in
A poorly managed shutter is a silent enemy of your air conditioning.
In the Caribbean, the sun hits your facades from early morning. Without shutters closed at the right times, heat seeps in and forces your AC units to compensate constantly — using more energy just to maintain a bearable temperature.
Most homeowners open their shutters in the morning and forget about them until evening. In between, their home heats up needlessly.
What Yubii does: Your shutters adapt to the sunlight and the time of day. They close when the sun bears down. They open when the breeze picks up. Your air conditioning can finally breathe.
3. The water heater that heats at the wrong times
The water heater is one of the most energy-hungry appliances in the home — and one of the least monitored.
By default, it heats continuously or on a fixed schedule that doesn’t necessarily match your actual habits. Result: it keeps water hot all day long, even when nobody is using it.
On our islands, where electricity rates are high, that’s money evaporating hour after hour.
What Yubii does: The water heater is programmed around your real usage times and off-peak tariffs. It heats when it’s useful — and only then.
4. The lighting you forget about
Not the living room lights — those get switched off.
The hallway lights. The bathroom. The garden left on all night. The terrace nobody uses after 9pm but which glows until sunrise.
Individually, each forgotten bulb seems harmless. Collectively, they add up to a constant consumption that nobody monitors.
What Yubii does: Presence detection, automatic zone-based switching, scheduling at dusk and dawn. Your home only lights up for the people who are actually there.
5. Devices on standby — the ghost on your bill
Television, internet box, plugged-in chargers, devices in standby mode — each one draws power constantly, even when off.
It’s called phantom consumption. According to studies, it can account for up to 10% of your annual electricity bill, without you ever being aware of it.
What Yubii does: Smart plugs cut power to standby devices according to your scenes. At night, everything truly switches off. Not just in appearance.
What it adds up to
Taken together, these five items represent a significant share of your actual consumption — often between 20% and 35%, depending on the home’s profile and the occupants’ habits.
In the Caribbean’s rate environment, automating these specific points can add up to several hundred euros in annual savings. On a second home left vacant for several months a year, the return on investment is even faster.
Home automation doesn’t ask you to change who you are. It adapts to you — and takes care of the rest.
A certified [ART]IST can identify your main sources of waste and install the most impactful automations for your home.