The global market for distributed generation technologies reached nearly $65.8 billion in 2015. This market is expected to increase from nearly $69.7 billion in 2016 to $109.5 billion in 2021 at a compound annual growth rate (CAGR) of 9.5% for 2016-2021.
Electricity is the set of physical phenomena associated with the presence and flow of electric charge. Electricity gives a wide variety of well-known effects, such as lightning,static electricity, electromagnetic induction and electrical current. In addition, electricity permits the creation and reception of electromagnetic radiation such as radio waves.
In electricity, charges produce electromagnetic fields which act on other charges. Electricity occurs due to several types of physics: