Navigate CAISO EDAM/DAME with a Trusted Partner
Schedule your demo today to see how our power market data solutions help you remain ahead.
On May 1, 2026, CAISO's Day-Ahead Market Enhancements (DAME) and Extended Day-Ahead Market (EDAM) initiatives will launch, significantly changing the west.
Be prepared from day one of the Western Expansion with expert-created resources designed to support you every step of the way.
Be prepared from day one of the Western Expansion with expert-created resources designed to support you every step of the way.
Have a question? Learn how we can help you navigate CAISO EDAM and DAME.
What EDAM & DAME Mean for the Market
PacifiCorp and CAISO will be the first EDAM participants upon go-live, with Portland General Electric joining EDAM in October 2026 and additional entities will join in 2027 and beyond.
EDAM (Extended Day-Ahead Market)
A voluntary regional program that expands CAISO’s day-ahead market across participating Western BAAs.
- Adds a day-ahead resource sufficiency evaluation (RSE) with tiered consequences and formalizes transmission pathways for EDAM transfers.
- Preserves BAA autonomy and enables unit commitment and scheduling with GHG compatibility.
DAME ( Day-Ahead Market Enhancements)
Introduces Imbalance Reserves (IRU/IRD), a new day-ahead product that procures flexible, deliverable capacity in the Integrated Forward Market.
- Addresses day-ahead and real-time uncertainty and ramping needs.
- Updates the RUC process to procure upward and downward reliability capacity to address real-time load deviations from day-ahead schedules.
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Market leadership
Market leadership
For more than 15 years, CAISO participants have relied on our expertise through major market changes. We’re focused on always providing trusted data and insights.
Quality data
As a leader in power market data and analytics, we empower customers with visibility into nodal prices, congestion, transmission constraints, outages, and system conditions across CAISO and the broader Western Interconnection.
Expert support
Our team provides ongoing guidance, resources, and hands-on support so you can adapt quickly and confidently—whether you're analyzing market conditions or managing operational processes.
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Backed by Proven CAISO & EDAM Experience
Backed by Proven CAISO and EDAM Experience
Deep experience supporting CAISO MRTU and WEIM participants, trusted by a majority of WEIM and EDAM market participants, and actively supporting customers through EDAM implementation and market transition.
Emily Merchant & Tim Hough | Webinar
What EDAM & DAME Mean for CAISO: Market Changes and Data Impacts
Join Yes Energy experts for a focused walkthrough of CAISO EDAM/DAME and how it will impact the way you analyze and interact with market data.
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Deepa Yerrabhommanahalli & Jason Hebert | Webinar
EDAM & DAME in Practice: What Utilities Must Do Now to Stay Ahead of Market Complexity
EDAM and DAME introduce new complexity across bidding, settlements, and reporting. Learn what’s changing, where utilities are most exposed, and how to prepare your workflows for day one
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