Based on our years of experience, McCullough Heating & Air Conditioning has developed a rule of thumb that works well in most cases. Here it is: If your home has an efficient heating and cooling system and is properly weatherized, your highest Summer electric bill should be about $0.06 times your square footage. For example, if you live in a 2,000 square foot home your highest summer electric bill should be about $120. Be careful to deduct some money, perhaps $50, from your electric bill if you have a swimming pool or other extra electrical demands, and remember that some Austin Energy bills include water, which should be subtracted.
If your highest Summer electric bill is much higher than $0.06 per square foot, it would be worthwhile to have a Home Energy Audit performed by McCullough. As an Austin Energy Registered Contractor, McCullough personnel have been specially trained to perform Home Energy Audits, and we provide this service FREE to homeowners.