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  • ATLAS REFERENCE
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  • REPORT DEFINITION
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  • PRICES
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  • TRANSMISSION
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  • SYSTEM DEMAND
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  • ENERGY
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  • ANCILLARY SERVICES
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  • CONGESTION REVENUE RIGHTS
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  • PUBLIC BIDS
  • |
  • RESOURCE ADEQUACY

Welcome to the California ISO Open Access Same-time Information System (OASIS)
site.  On OASIS you will find real-time data related to the ISO transmission system
and its Market, such as system demand forecasts, transmission outage and capacity
status, market prices and market result data.
System Help
• All technical specifications and artifacts for OASIS are available on the
Self-registration is required to access the site.
• To download data without using the OASIS interface, see
on the
ISO Developer site.
• Access non-technical OASIS reference documents on