03 Apr 2026
33m

Service Request #4: How Does the Grid in Phoenix Work?

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99% Invisible

The podcast explores the complexities of Phoenix's electrical grid, focusing on how the city manages to maintain a reliable power supply in extreme heat. It highlights the intricate balance between energy generation and consumption, emphasizing the role of the Salt River Project (SRP) in coordinating power from various sources across the Western grid. Angie Bond Simpson, Senior Director of Resource Management at SRP, explains the long-term and day-to-day planning involved, including forecasting, resource stacking, and real-time adjustments. The discussion also covers potential threats to the grid, from mundane events like car accidents and gender reveal parties to the larger challenges posed by climate change and rapid population growth, and how SRP prepares for the hottest day of the year to ensure the grid's reliability.

Outlines

Part 1: Context, Grid Basics

Part 2: Mechanics, Supply and Demand

Part 3: Challenges, Future Resilience

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