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.
1 Cost to Run an AC â Your monthly power bill depends on local rates, but there are a couple of ways to estimate your costs. 2  Energy Star says the average homeowner spends about $1,000 per year on heating and cooling costs, or about 50 percent of their total energy bills. Choosing an AC â Rather than selecting an air conditioner based on wattage, choose the unit thatâs right for the size of the space you need to cool. 2  Buying a model thatâs too small is as much of a mistake as buying one thatâs too large.