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ISO Today

Monitor California ISO real-time power grid conditions, receive alerts and track calendar events with this free application. ISO Today makes our top web features available at your touch.



What's New in Version 4.0

  • Updated user interface with revised navigation.
  • View grid status and available capacity measured against the current demand and the forecasted peak.
  • View historical data, starting from 4/10/2018, on all trend graphs.
  • Compare today's demand against historical demand.
  • View the net demand afternoon ramp as it occurs.
  • Added breakdown of supply and renewables.
  • View batteries and imports trend.
  • Monitor emissions.
  • Revised price map nodes with greater granularity. Added ability to filter out nodes based on price.
  • Added Daily Briefing replacing market notices.
  • Filter Daily Briefing and calendar based on categories.
  • Added access to additional reports under demand, supply and emissions. 



  • Monitor prices with the interactive price map that depicts the current hour's wholesale energy prices with zoom in to specific price details, including cost breakdowns, for thousands of price points across the grid.
  • View near real-time demand of electricity, including the amount of green energy helping to “keep the lights on” at any given time. The app offers advanced graph features, including automatic graph resizing based on the device and screen orientation, flexible zoom capability, individual line on and off toggle and new data displays of output at any point in time and hourly.
  • Receive ISO issued Flex Alerts when conservation is needed and Alerts, Warnings and Emergency notifications when operating reserves or transmission capacity limitations threaten our ability to safely and reliably operate the grid.
  • Stay informed by accessing market notices and ISO tweets directly in the app.
  • View the ISO public meeting schedule and add meetings in your mobile phone calendar​.

Version 4 of ISO Today is compatible with iOS9 and Android 5.0 (Lollipop) and up for smart phones and tablets. Apple devices with the iOS 8 operating system can still download Version 3 from the App Store. Android devices with Android 4.4 (KitKat) can still download version 3 from Google Play.