The global solar energy market is in a stage of rapid growth, mainly due to various factors. First, the cost of solar technology has dropped significantly, making solar energy an economically viable energy option in many countries and regions. Second, there is increasing global demand for renewable energy, especially in combating climate change and reducing greenhouse gas emissions. In addition, many countries realize that developing clean energy is not only an effective way to deal with climate change but also a long-term solution to energy security issues.

The grid is a network that connects electric power generation plants to high voltage lines which carry electricity over some distance to substations - "transmission". When a destination is reached, the substations decrease the voltage for "distribution" to medium voltage lines and then further to low voltage lines. Finally, a transformer on a telephone pole reduces it to a household voltage of 120 volts.