Okay, let’s tackle this. So Robert Sousa has a degree from California Polytechnic State University-San Luis Obispo, which is a reputable institution. His skills in HVAC, engineering, and project management are in demand, especially in the Greater Sacramento area. However, without specific industry benchmarks or salary data for this location and role, it’s challenging to estimate a precise hourly rate. Generally, mechanical engineers with similar skills can charge between $75-$125 per hour, depending on the industry, experience, and location. Considering Robert’s education and skills, I’ll estimate a lower end of this range, around $100 per hour.