Energy Engineering and Energy Technology
Renewable energy engineering (solar energy, bioenergy, wind energy, nuclear energy, hydrogen, etc.)
Traditional energy engineering (traditional electricity such as coal, oil, and natural gas)
Energy materials
Energy storage technology
Energy saving technology
Energy Chemical Engineering
Energy security and clean use
Energy equipment and technology
Thermophysics and Thermal Energy Engineering
Microbial fuel cell
Microbiology
Chemical engineering
Environmental engineering
Material science 
Bioelectrochemistry
Energy Science
Electrical engineering, etc