英文關鍵字
average
energy
hightech
batteries
building
electricity
source
technology
generator
electric
standard
american
sunlight
ecological
supply
sustainable
station
autonomous
top
tile
renewable
solar
medium
grid
sun
green
home
cells
roof
rooftop
development
photovoltaic
recycling
installation
alternative
normal
clean
electrical
usa
fuel
ordinary
power
regular
equipment
panels
innovation
house