China has made significant strides in the adoption of ground-source heat pumps for district heating, with over 77 GW of installed capacity by 2019. This massive expansion showcases the country's commitment to sustainable and efficient energy solutions. The deployment of tens of thousands of systems across various sectors demonstrates the practicality and scalability of geothermal technology. Unlike traditional heating methods, ground-source heat pumps circulate water underground, tapping into the Earth's constant temperature and eliminating the need for combustion. This results in reduced emissions, long-lasting infrastructure, and substantial energy savings over time. Examples like Ball State University in Indiana highlight the impressive efficiency gains of geothermal systems, with a seasonal coefficient of performance of 3.7 and significant cost savings. Geothermal systems at a district level offer operational advantages like scale-based efficiency, diversity of load, and smoother operation, making them an attractive option for large-scale heating projects. Innovations such as energy piles and deep boreholes are making geothermal systems more feasible in various geographies, including dense urban areas, by utilizing building foundations for heat exchange. The future of geothermal technology looks promising, with continuous advancements driving its accessibility and practicality in diverse settings.