Solar technologies
There are two main types of solar power technology: solar photovoltaic and solar thermal.
- Solar photovoltaic (also known as solar PV) absorbs sunlight and converts it into electricity.
- Solar thermal absorbs the sun’s heat and converts it into energy (also known as thermal energy). It is commonly used for rooftop solar hot water systems.
Solar PV is the more popular and widely adopted solar technology. It converts sunlight into electricity via a solar PV cell. The most common form of solar PV cell is encased in glass and an aluminum frame to form a solar panel. Then, when sunlight hits a solar panel, the light energy is converted into DC electricity.
Solar panels generate electricity from sunlight. While they produce the most energy on clear days, they can still operate and generate power when it’s cloudy.
Solar panels generate DC (direct current) electricity. DC electricity is also used to charge batteries and is discharged by a battery. AC (alternating current) electricity is used to power appliances in your home or business and is supplied by the electricity grid.