Solar energy can be converted into heat or electricity using various
technologies. Solar water heating and solar photovoltaic technologies
are suitable for application in Hong Kong. Other than these two types
of technologies, other solar technologies are also available and are applied
in other parts of the world.
- Solar Water Heating
Solar heating technologies are well developed and are widely used
in many places throughout the world. Solar water heating is suitable
for application in Hong Kong, while solar space heating is uncommon
at this latitude.
- Solar Photovoltaic
Photovoltaic (PV) modules are made up of semiconductor devices (solar
cells) capable of directly converting light energy into electricity.
PV modules can be connected to form small or large arrays, from several
hundred watts capacity to hundreds of kilowatts.
- Other Solar Technologies
Concentrating solar power technologies use reflective materials such
as mirrors to concentrate the sun's energy to convert it to high-temperature
heat. The heat is then used for generating electricity using conventional
electricity generation equipment. Other technologies include solar
space heating, solar cooling, and solar lighting.