第四届可再生能源与环境保护国际学术会议(ICREEP 2019)接收原创论文和未发表论文。征稿主题如下（但不限于以下主题）：
2019 4th International Conference on Renewable Energy and Environmental Protection (ICREEP 2019) accepts original and unpublished papers. The papers may include but are not limited to:
(I) 能源工程和能源技术
(01) 可再生能源工程(太阳能、生物能、风能、核能、氢、等等)
(02) 传统能源工程(煤炭、石油、天然气等传统的电力)
(03) 能源材料
(04) 能源存储技术
(05) 节能技术
(06) 能源化学工程
(07) 能源安全和清洁使用
(08) 能源设备和技术
(09) 热物理学和热能工程
(10) 暖通、空调和制冷
(II) 环境科学和环境工程
(11) 环境材料
(12) 环境安全与健康
(13) 环境分析和评价
(14) 环境工程
(15) 污染控制项目(空气、水、固体)
(16) 废物处理和回收
(17) 清洁生产过程
(18) 水土保持和沙漠化控制
(19) 地理信息和遥感科学
(III) 电力供应系统
(20) 高电压与绝缘技术
(21) 电力电子与电力驱动
(22) 电力系统管理
(23) 电力系统自动化
(IV) 资源勘探与利用和可持续发展
(24) 矿产资源和矿业工程工程
(25) 石油和天然气资源
(26) 冶金工程
(27) 机器和设备资源处理
(28) 水文与水资源工程
(29) 土地资源环境和城市规划
(30) 林业工程
(31) 可持续发展的理论和实践
(V) 能源经济与管理
(32) 能源开发与环境保护
(33) 能源产业经济
(34) 能源战略管理
(35) 能源产业与城市发展
(36) 能源企业管理
(37) 能源工程项目管理
(38) 能源市场分析
(39) 能源贸易
(I) Energy Engineering and Energy Technology
(01) Renewable Energy Engineering(Solar, Biomass, Wind, Nuclear, Hydrogen, etc.)
(02) Traditional Energy Engineering(coal, oil, natural gas, etc. no traditional electrical power)
(03) Energy Materials
(04) Energy Storage Technology
(05) Energy-Saving Technology
(06) Energy Chemical Engineering
(07) Energy Security and Clean Use
(08) Energy Equipment and Technology
(09) Thermophysics and Thermal Engineering
(10) HVAC, Air Conditioning and Refrigeration
(II) Environmental Science and Environmental Engineering
(11) Environmental Materials
(12) Environmental Safety and Health
(13) Environmental Analysis and Assessment
(14) Environmental Engineering
(15) Pollution Control Project (Air, Water, Solid)
(16) Waste Disposal and Recycling
(17) Clean Production Process
(18) Soil and Water Conservation and Desertification Control
(19) Geographic Information and Remote Sensing Science
(III) Electricity Supply Systems
(20) High Voltage and Insulation Technology
(21) Power Electronics and Power Drives
(22) Power System Management
(23) Automation in Power Systems
(IV) Exploration and Utilization of Resources and Sustainable Development
(24) Mineral Resources and Mining Engineering
(25) Oil and Gas Resources Engineering
(26) Metallurgical Engineering
(27) Machines and Equipments for Resource Processing
(28) Hydrology and Water Resources Engineering
(29) Land Resources Environment and Urban Planning
(30) Forestry Engineering
(31) Theory and Practice of Sustainable Development
(V) Energy Economy and Management
(32) Energy Development and Environmental Protection
(33) Energy Industry Economy
(34) Energy Strategy Management
(35) Energy Industry and Urban Development
(36) Energy Enterprise Management
(37) Energy Engineering Project Management
(38) Energy Market Analysis
(39) Energy Trade
