Topic 1: Clean Energy
Renewable energy technologies and systems
Renewable energy storage technology
Energy efficiency
Solar thermal energy
Solar powered seawater desalination
Solar energy 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
Topic 2: Advanced Energy Storage Systems
Lithium ion batteries, solid-state batteries, and next-generation battery technology
Flow batteries, sodium batteries, and other electrochemical energy storage devices
Pumped storage, compressed air storage, and flywheel storage
Thermal/Cold Storage Materials and Systems
Safety, lifespan prediction, and recycling of energy storage systems
Integration technology of energy storage and renewable energy grid connection
Topic 3: Carbon Neutrality and Low Carbon Technologies
Carbon Capture, Utilization, and Storage (CCUS) technology
Deep decarbonization and zero carbon technology in industrial processes
Low carbon transformation path and modeling of energy system
Carbon Market, Carbon Trading, and Carbon Asset Management
Low carbon cities, zero carbon parks, and building energy efficiency
Life cycle assessment and green low-carbon standards