Geothermal HVAC Design for Estate

I'm seeking a skilled mechanical engineer to design a geothermal HVAC system for a large estate. The property is currently in new construction planning stages, and the primary goal is to lower energy costs.

Key Requirements:
- Expertise in geothermal HVAC systems
- Experience with large residential properties
- Ability to integrate system into new construction

Ideal Skills and Experience:
- Mechanical engineering degree
- Proven track record in HVAC design
- Knowledge of energy efficiency and cost-saving technologies
- Strong project management skills to coordinate with construction team

Please provide relevant experience and approach to the project.