Market Access Login

Sandbox Market Access Logins

In response to Market Participant feedback, the NYISO is providing a permanent Sandbox testing site for select NYISO applications.

The Sandbox environment will remain open and available to Market Participants on a best available effort basis. NYISO's goal is to provide best available access to the Sandbox 24x7 with the following limitations:

  • Daily refreshes beginning at 23:00 each day, lasting approximately 90 minutes
  • Planned and unplanned system maintenance

Priority of service is to NYISOs production platforms and systems; Sandbox service disruptions will be restored as resources are available during normal business hours.

Please Note:
A Valid NAESB or NYISO Digital Certificate is Required for All Sandbox Links.

Need Help? Got a Question? Should you require any assistance - you may email NYISOStakeholder Services.

 Marketplace Sandbox Links   Joint Energy Scheduling System (JESS) Sandbox Links   ICAP Automated Markets   Demand Response Information System (DRIS)   TCC Automated Market   Change Password (SSAM)

The NYISO sandbox will be down for approximatively 3 weeks starting 6/20 as we prepare the environment with production quality data. We will notify the marketplace when the NYISO sandbox becomes available again. As a reminder, the NYISO sandbox is available on a best available effort basis as our priority is provided to our Production systems. Please contact NYISO Stakeholder Services with any questions or join the TIE list to receive notification updates.