Solar Panels

History of solar modules

Solar power technology is not a recent advent; in fact, it dates back over 100 years to the industrial revolution where solar power plants were developed to heat water which created steam to drive machinery. In 1839 Alexandre Edmond Becquerel discovered the photovoltaic effect which explains how electricity can be generated from sunlight. He claimed that "shining light on an electrode submerged in a conductive solution would create an electric current." However, even after a lot of research and developments after this discovery, photovoltaic power continued to be very inefficient and photovoltaic cells were used mainly for the purposes of measuring light. Over 100 years later, in 1941, Russell Ohl invented the solar cell, shortly after the invention of the transistor. These days, solar modules are becoming increasingly efficient due to improvements in design technology.

How solar power works

Light (photons) striking certain compounds, in particular metals, causes the surface of the material to emit electrons. Light striking other compounds causes the material to accept electrons. It is the combination of these two compounds that can be made use of to cause electrons to flow through a conductor, and thereby create electricity. This phenomenon is called the photo-electric effect. Photovoltaic means sunlight converted into a flow of electrons (electricity)

Solar power is a rapidly developing energy source in Australia and around the world. The potential for using the sun to directly supply our power needs is huge, every day Earth. This is due to the development of technology such as the solar module, which utilizes the energy channeling capacity of the Photovoltaic Cell.

Solar modules can generate electricity without any waste or pollution, or dependence on the Earths natural resources. Solar modules have no moving parts so they are very reliable and have a long life span. Solar modules are relatively easy to install and are very low maintenance

A useful characteristic of solar photovoltaic power generation is that it can be installed on any scale as opposed to conventional forms of power generation which require large scale plant and maintenance. Solar modules can be installed to generate power where it is needed which removes the need to transport and distribute power over long distances to remote areas.

Read our 10 tips for getting a solar power system, or tips for choosing solar panels.