Topic 1: Low Carbon Development
Clean energy
Natural gas
Water pollution prevention and control engineering
Carbon emissions and haze pollution
Air pollution prevention and control engineering
Environmental Protection Engineering
New energy vehicle
Hybrid electric vehicle
Electric Rail Transit
Urban Electric Railway
Solar powered buildings
Energy-efficient building
Energy saving industrial structure
Industrial technology energy conservation
Low carbon logistics and intelligent informatization
Sustainability of Society and Environment
Topic 2: Statistics Energy Conservation and Emission Reduction
Industrial energy efficiency
Building energy efficiency
Energy saving appliances and equipment
Transportation energy efficiency
Energy saving policies
Carbon Capture, Utilization, and Storage (CCUS)
Green hydrogen and clean fuels
Low carbon energy system
Reduce methane emissions
Circular economy application
Cross departmental electrification
The Application of Artificial Intelligence in Emission Reduction
Carbon Neutral Negative Electrode Technology
Emission reduction in the supply chain
Energy saving in urban planning
Changes in emission reduction behavior
Feasibility of energy investment
Topic 3: Clean Energy
Renewable energy technologies and systems
Renewable energy storage technology
Energy efficiency
Solar thermal energy
Solar powered seawater desalination
Solar Materials
Photovoltaic
Wind energy technology
Hydrogen energy production
Hydrogen storage
Fuel cell
Biomass and biofuels
Waste to energy conversion
Nuclear energy
Energy management
Energy Security and Clean Utilization
Energy Management Control System
Bioenergy
Passive solar building 
Sustainable architecture
Energy and Architecture
Economic feasibility of renewable energy systems, etc