Okay, let’s tackle this. So Tom Barlow has 39 years of experience in mechanical engineering, with a focus on energy programs and project management. He’s worked at Lawrence Livermore National Laboratory for most of his career, which is a high-profile research institution. His experience spans multiple areas, including mechanical engineering, facilities management, and project management. Given his extensive experience and the fact that he’s worked in a high-profile research institution, I’d estimate his hourly rate to be around $200. This is slightly lower than what I’d expect for someone with his level of experience working in industry, but it’s still a good rate considering his background and the fact that he’s retired. Some mechanical engineers with similar experience might charge higher rates, but $200 seems reasonable for this particular profile.