2. Features
To reduce green effect
To threat the environment less than traditional skills
To bring workforce into blossom
To be inexhaustible in supply and always available for
use
9. Ocean energy application
Tidal power generation
Wave power generation
Current power generation
Thermoelectric power generation
10. Green energy development limited
# Solar energy have lower density ,needing exaggerate land scale to
collect more energy
# Geothermal utilization is limited to areas with more
frequent crustal activity
#The efficiency of ocean energy utilization remains
uncertain
#Biomass energy scale is small, which easy effect by
weather
