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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 4.6

  • Available capacity is relabeled to Current capacity and represents all capacity on the system, loaded and unloaded.
  • Updated capacity status to include 1 hour available capacity and 4 hour available capacity.
  • Updated capacity status to include reserves. Reserves is included in 1 hour available capacity.
  • Added Current reserves to Demand screen overview.
  • Added forecasted peak time to Demand screen overview.
  • Added Demand response events to demand line. This will turn the Demand line red when Demand response significantly affects demand during emergencies.
  • Removed Historical peak from demand screen overview. It is still available in the information screen.
  • Removed Today’s peak from demand screen overview for clarity.



  • Monitor available resource adequacy capacity to identify when energy supply might be tight, up to 7 days in advance.
  • View grid status and available capacity measured against the current demand and the forecasted peak.

  • Users can receive Flex Alerts to notify them when conservation is needed, get energy system notifications, along with ability to add ISO meetings and events to their calendar.

  • Compare demand and net demand plus historic data.

  • View wholesale energy prices on the price map. Use the slider to easily filter out nodes based on Location Marginal Prices (LMP).

  • Monitor emissions.

  • View breakdown of supply and renewables serving the ISO.

  • View peak and daily production data for past dates on the renewables trend graph.

  • View renewables and supply graphs as stacked charts.

Version 4.6 of ISO Today is compatible with iOS13 and Android 7.0 (Nougut) and up for smart phones and tablets. Apple devices with the iOS 12 operating system can still download Version 4.3 from the App Store.