The answer to 'why is my heat pump high energy bills' is that there are several common causes, including inefficient operation, system age, and lack of maintenance. A high-efficiency heat pump should provide heating and cooling at a lower cost than traditional furnaces and air conditioners, but if it's not working properly, your energy bills can skyrocket.
Some of the most common causes of high energy bills with a heat pump include: an older, less efficient system; refrigerant leaks; clogged air filters; issues with the compressor or other components; and poor insulation or air sealing in your home. If your heat pump is more than 10-15 years old, it may be time to consider upgrading to a newer, more efficient model. Regular maintenance like changing air filters and having a professional tune-up can also help keep your system running efficiently.