When temperatures don’t drop in the evening, it’s hard to get any sleep without a nice cool breeze. Many people leave their air conditioning running all night. But when it comes to the bill, the question arises: how much does this nighttime comfort really cost? Spoiler: the bill can quickly add up… unless you know a few simple tricks!
Freshness that comes at a price… by the kilowatt

A quick calculation? With an average rate of €0.20 per kWh in 2025 :
- For 2 kWh , count around €0.40 per hour
- Over an 8-hour night , this comes to around €3.20
- What if you leave the air conditioning running 24/7 ? That can amount to €9.60 per day, or almost €70 per week!
Suffice to say that over a whole summer, the bill can quickly become unpleasant…
Smart air conditioning: consume less without suffocating
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