Okay, let’s calculate this. Paul has skills in engineering, HVAC, and building automation, which are in demand. Project management, LEED, and leadership skills add to his value. Location is Baltimore, MD, which is a mid-sized city with a moderate cost of living. Industry standards for professionals with these skills in the US typically range from $100 to $200 per hour. Considering Paul’s skills and location, I estimate his hourly rate to be around $125, which is on the lower end of the range, but still reflective of his value.