Catalog · Geothermal Energy Networks: Transforming Our Thermal Energy System Lecture 14 of 26 Session 4-4: Expanding Geothermal Energy Networks at a Global Scale ← Previous Session 4-3: Business Models for Community Networked Geothermal Heating and Cooling Next → Session 5-1: Introduction to Geothermal Heat Pumps ✓ Mark complete Materials Transcript (PDF) ↗ transcript