Component Descriptions of a Solar Electric Power System

F undamental Elements of Photovoltaic Systems
Solar systems begin with the solar module. Modules gather solar energy in the form of sunlight and convert it into direct current (DC) electricity. The more sunlight they receive, the more electricity they produce. Solar modules are the heart of the system.
They are the power generators.
Components such as charge regulators, batteries and inverters regulate, store, condition and deliver the electricity. Other elements connect the different components of the system.
Solar systems have to meet high standards of reliability and economic efficiency. This can only be guaranteed by the use of field-proven quality components that are well matched.

Sunlight

Sunlight is energy in the form of light. It is the fuel of a solar (photovoltaic) system. 

Solar Modules

Solar modules generate DC electricity directly from sunlight. Use one or more modules depending on your power needs and the amount of sunlight available. Solar modules generate DC electricity directly from sunlight. Use one or more modules depending on your power needs and the amount of sunlight available.

Charge Regulator

Charge regulators are the link between the modules, battery and load. They protect the battery from overcharge or excessive discharge.

Battery

Batteries store the energy generated by the solar modules. Batteries store the energy generated by the solar modules.

Inverter

Inverters convert DC (direct current)
electricity into AC (alternating current) to run many common appliances and equipment. Inverters convert DC (direct current)
electricity into AC (alternating current) to run many common appliances and equipment.

Mounting Structure

Mounting structures hold the solar modules securely in place. Ground, roof and pole mounting versions are available. Mounting structures hold the solar modules securely in place. Ground, roof and pole mounting versions are available.

Load

The appliances, lights and equipment being powered are called electrical 'loads'. Energy-efficient loads contribute to overall system efficiency and economy.

Wiring / Interconnects

Proper wiring and connections must be specified for every segment of the system to assure best performance.

Back-up Generator

Compatible generators (e.g. diesel) may be used as back-up for excessive power demands or during unanticipated long sunless periods.

Space

Solar modules should be installed in an area that is generally free from shade and receives as much direct sun exposure as possible. Solar modules should be installed in an area that is generally free from shade and receives as much direct sun exposure as possible.

Maintenance

Solar systems are one of the easiest and most reliable ways to generate electricity.
Regular maintenance to check wiring, connections, batteries, and overall system condition will help assure long-term trouble-free operation.