An evaporative cooler is much cheaper to operate than a standard air conditioner. It uses less energy, and can be a good alternative in dry areas.
Since an evaportive cooler operates in a much simpler way compared to traditional air conditioning, it doesn't require as much electricity or energy to operate. In desert-like areas, people can save as much as 80% by ditching the air conditioner and using a swamp cooler instead.
In some areas where the temperatures are known to soar, it doesn't make much sense to use an evaporative cooler all the time. Still, many people will experience savings by switching between the swamp cooler and the air conditioner. In parts of the country that experience cooler nights, the air conditioner can be turned off and the swamp coolers turned on in the evenings. This can save an average of 30% on monthly utility bills.
Another way to rack up the savings is to use the air conditioner only when the temperatures reach unbearable levels outside. When it's under 90 degrees, a swamp cooler can be very effective in cooling a home, and saving money at the same time.