煤矿不只产煤,未来还将“反向充电”?矿区绿电替代正加速
Zhong Guo Neng Yuan Wang·2025-12-05 00:43

Core Insights - The coal mining industry has significant electricity consumption across various production stages, with large mines consuming tens of millions to over a hundred million kilowatt-hours annually [1][2] - The introduction of high-end equipment and the promotion of renewable energy are expected to lead to cleaner and more efficient coal production, enhancing profitability for coal companies [1][4] Electricity Consumption in Coal Production - Coal mining involves substantial electricity usage in processes such as underground transportation, ventilation, and equipment operation, with annual consumption for a mine like Zhongmei Shaanxi Dahuai reaching 82.16 million kilowatt-hours [2][3] - In 2022, the comprehensive electricity consumption for large coal enterprises in China was 23.7 kilowatt-hours per ton of raw coal, marking a 3% increase year-on-year [2] Energy Efficiency and Technological Advancements - Energy-saving transformations in coal mining should focus on low-carbon electricity alternatives, equipment upgrades, and optimized management systems to reduce overall energy consumption [3][4] - Despite an increase in electricity consumption, the comprehensive energy consumption for raw coal production decreased by 12.2% to 7.9 kilograms of standard coal per ton, indicating improvements in energy efficiency [3][4] Transition to Electrification and Automation - The shift towards electrification and automation in coal mining is leading to a transformation in energy consumption patterns, moving from traditional fuel-intensive methods to more electric-driven processes [4][5] - The rise in electricity usage reflects a growing reliance on electric equipment and transportation systems within coal production [4] Renewable Energy Integration - Coal companies are increasingly exploring opportunities in wind and solar energy, with firms like China Shenhua establishing multiple renewable energy companies [4][5] - By the end of 2024, approximately 2 million hectares of land from coal mining subsidence areas will be available for renewable energy projects, facilitating the integration of green electricity into mining operations [5] Challenges in Renewable Energy Adoption - While the transition to renewable energy is underway, the current reliance on green electricity in mining operations remains low, primarily supporting transportation and heating needs [6] - Further optimization of power supply stability and continuity is necessary to meet the high-load demands of mining production [6]