【咸阳】地热梯级综合开发愈来愈“热”

Core Insights - Geothermal energy is recognized as a green, low-carbon, and renewable energy source, crucial for energy structure adjustment, energy conservation, and environmental improvement [1] - Shaanxi province, particularly Xi'an, has significant geothermal resources and has been designated as a national demonstration zone for comprehensive geothermal resource development [1][2] - The "Heat-Electricity-Helium" co-production pilot project by Sinopec New Star Green Source in Shaanxi is the first geothermal power generation experiment in the province, showcasing professional and large-scale geothermal energy utilization [1][3] Geothermal Resource Development - As of now, the area heated by geothermal energy in Xi'an exceeds 20.5 million square meters, accounting for over 32% of the city's total heating area [2] - The project utilizes a deep geothermal well reaching 3,000 meters, providing clean heating for an area of 170,000 square meters [1][3] - The project aims to establish a foundation for high-quality, large-scale geothermal energy development in the Guanzhong Basin, focusing on heating and wellness applications [3] Technological Innovations - The project employs Organic Rankine Cycle (ORC) technology for power generation, which is characterized by long operational life, low temperature requirements, and a wide capacity range [3][4] - Innovations include the extraction of helium, with the geothermal well's helium content exceeding 2.6%, and the project can achieve helium purity over 99.999% through advanced separation techniques [4] - The project is expected to generate approximately 700,000 kilowatt-hours of electricity annually and extract 1,300 cubic meters of helium each year [4] Future Development Goals - The Xi'an municipal government aims to replace 5 million square meters of gas heating with geothermal energy in the main urban area, promoting geothermal resource development to meet urban heating demands [5] - The city has established a development pattern centered around the urban area, with surrounding regions contributing to geothermal resource utilization [5] - Continuous technological innovation and the expansion of application scenarios are anticipated to enhance the role of geothermal energy in urban development and improve residents' quality of life [5]