Date: November 2024

Arizona Public Service (APS) has built one of the largest VPPs in North America, comprising over 90,000 devices that consistently deliver over 100 MW of load shed. To leverage this resource, APS has pioneered a unique “pre-cooling” dispatch strategy that maximizes renewable generation resources, reduces customer time-of-use (TOU) costs, and creates a flatter load shape. But the grid benefits don’t stop there; APS’s VPP also provides value to CAISO through its participation in the Western Energy Imbalance Market (WEIM). Learn how APS’s DSM and Markets teams work together to execute advanced VPP management strategies, including meeting daily during the peak summer season to determine if they should call a conservation event. We will explore real examples of when APS’ Cool Rewards program benefited the greater WEIM with this strategy, such as when they called three consecutive events over Labor Day weekend in 2022 to keep California’s grid running.

Speakers:
Erika Diamond, EnergyHub
Kerri Carnes, Arizona Public Service
Elizabeth Goodman, Arizona Public Service