Electricity Transmission from the Edison Electric Institute

The U.S. electrical transmission grid consists of more than 200000 miles of high-voltage transmission lines (230 Kilovolts and bigger). Transmission lines carry electricity from power plants to areas where electricity is needed and necessary. Electricity travels at approximately the speed of light, arriving at the end user's home for consumption. Shareholder-owned electric firms invested about $49 billion in the state's transmission process from 2000 to 2007, and are expected to spend even more in the future. For electricity transmission over large areas, it must be ensurd dthat supply and demand for electricity keep balanced, otherwise it could be quite dangerous.

Electric Power Transmission

Electric power transmission or "high voltage electrical transmission" is the bulk transfer of electrical energy, from generating plants to the end user. The rapid industrialization within the 20th century made electrical transmission lines and grids an important half of the infrastructure in most industrialized nations. Long-distance transmission of electricity (thousands of kilometers) is reasonable and efficient, with costs of US$0.005-0.02/kWh. This is the way energy is transferred from the source to the final end user.