The earliest sunrise of the month in Dublin is 5:41 AM on August 1 and the latest sunrise is 51 minutes later at 6:32 AM on August 31. The latest sunset is 9:20 PM on August 1 and the earliest sunset is 1 hour, 4 minutes earlier at 8:16 PM on August 31.
1.2 kWh x $0.25 = $0.30 per hour to run your window air conditioner. At 8 hours a day for 125 days of summer, your window air conditioner will have an annual running cost of $300 a year.
A 5.0kW system running for 5 hours a day at 24 degrees will cost $130.33 per year to run or $1.55 per day. - If air conditioner users set temperatures below the recommended 24 degrees, they will add 5-10 per cent running costs to their air conditioner per hour/day/year.