Overview

• A split AC unit run for ten hours daily consumes about 13 kWh, translating to roughly €1.95 per day at current average electricity prices in Spain.
• Experts warn that cooling can account for as much as 40% of a household’s electricity bill during the hottest months, intensifying pressure on consumer budgets.
• Keeping thermostats set within recommended ranges—24 °C to 26 °C in summer and 20 °C to 21 °C in winter—helps balance comfort with efficiency since each degree change can increase power use by up to 7–8%.
• Specialists advise against repeated on/off cycling and automatic pre-start features because compressor restarts trigger energy-intensive consumption spikes.
• Proper unit sizing, high energy-rating equipment, dedicated high-voltage outlets and routine filter cleaning are key to preventing unnecessary energy waste and safety hazards.