Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines that facilitate this movement form a transmission network.

Energy transmission is the most basic function of global energy interconnection. Electric energy transmission is an important mode of energy transport, with the flow of electricity generated from coal as well as hydro, nuclear, wind, and solar energy all transmitted through power grids.

The electricity supply chain consists of three primary segments: generation, where electricity is produced; transmission, which moves power over long distances via high-voltage power lines; and distribution, which moves power over shorter distances to end users (homes, businesses, industrial sites, etc.) via lower voltage lines.

California’s transmission system transports large quantities of electricity from generation sites to homes and businesses across the state. California is enhancing its transmission system to facilitate the transition to a reliable, clean, and affordable energy system.

California Energy Commission develops and maintains maps and spatial information on California’s energy infrastructure and related activities. Explore maps, applications, and geographic datasets to uncover valuable insights and support informed decision-making across the commission.

A modernized transmission system—the vital network of power lines and infrastructure used to deliver electricity—is an imperative link between a rapidly changing power generation sector and increasing demand from end-users.

2025年1月21日 · Thanks to our transmission network, when demand for electricity spikes, we can fire up far-flung power plants, letting huge regions rely on a shared electric grid. Transmission and the shift to clean energy. Our modern energy system is only possible with a …

2024年4月30日 · Studies of clean electricity futures in the United States have shown that transmission is likely to play a substantial role in a cost-effective transition to a decarbonized grid. In some cases, transmission capacity may need to increase by more than double to move the large quantities of low-cost renewable electricity to where people need it.

A more closely connected and integrated grid opens up power markets and helps to lower costs to consumers. Building new transmission that connects renewable energy projects spurs job creation up and down the supply chain.

Electrical transmission is the process of delivering generated electricity - usually over long distances - to the distribution grid located in populated areas. An important part of this process includes transformers which are used to increase voltage levels to make long distance transmission feasible.