How It Works

Power plant image (source of electricity) Cal-ISO map board: controlling the transmission lines Power plant image
Transmission lines image: ISO controlled Open market electricity carried across a power grid that connects power plants to substations. Cal-ISO control center image: controlling the transmission lines Transmission lines image
High Voltage Transmission Lines: Buttressed by 100-150 foor towers spanning long distances. Transmission lines image Substation: Power is stepped down in voltage for distribution by local utilities to homes and businesses. spacer
Image of homes and businesses Distribution System: Transports electricity to neighborhoods. Power lines often supported by wooden poles. Sometimes they are built underground. Image of the Substation
Images of homes and businesses Images of local distribution lines on wooden poles.
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