KOOP-REEL KAALAMAN ENTRY | ISABELA II ELECTRIC COOPERATIVE INC. (ISELCO II) The power supply chain is the journey electricity takes from its source to your home or business. Understanding this process can help you appreciate how energy is produced, transmitted, and delivered. Here’s a straightforward explanation of the main stages in the power supply chain. Generation - Power Plants: Electricity generation starts at power plants. These facilities use various energy sources such as fossil fuels (