We just moved into a new home with a Goodman. We are receiving astronomical electric bills. Our previous home was all electric and we didn't have this problem. We called back the contractor and they didn't find anything wrong. I have since found that the thermostat was set to "Comfort" for the auxiliary heat and I have changed it to economy. The system also seems very loud when it is running. Does anybody have any other suggestions, these electric bills are killing me off.

Is the heat pump is running as it should and the air filter is clean there is not much you can do to the system to make it run cheaper.

Lower thermostat setting
Do not use emergency/aux heat
Check all duct work for tightness and no leaks
Make sure the heat pump is running as it should. (call the company that put it in)
Look for air leaks in and around the house. Just because it is a new house means nothing today. Some new houses have many problems with HVAC since the contractor can cheat there and it will never be seen by the average person.
Do not use a set back thermostat. It will cause the expensive emergency/aux heat to come on during the recovery process.
Get on even billing to help round out your electric bill and spread the higher cost over the year.
Your new house might be bigger than your old house. For every square foot of space you have to pay to heat so take that into consideration