IT Notices

ISO New England will be performing a maintenance outage of CROW Outage Scheduler on Wednesday, August 5, 2026, from 19:00 to 21:00 Hrs

2026-08-04T19:24:37Z

When: Wednesday August 5, 2026 7:00 PM

ISO New England will be performing a maintenance outage of CROW Outage Scheduler on Wednesday, August 5, 2026, from 19:00 to 21:00 Hrs. During this time, the Production and Sandbox CROW web application and web services will be intermittently unavailable.

ISO New England will perform a maintenance outage in the Production and Sandbox environments on Thursday, July 30th, 2026, between 15:00 and 16:00.

2026-07-29T19:50:39Z

When: Thursday July 30, 2026 3:00 PM

ISO New England will perform a maintenance outage in the Production and Sandbox environments on Thursday, July 30th, 2026, between 15:00 and 16:00.

During this time, Production and Sandbox WPF & SPF web services may be unavailable for up to 60 minutes.

ISO New England will be performing a maintenance outage of the CROW Outage Scheduler in Production and Sandbox on Wednesday, July 29, 2026, from 14:00 to 16:00 Hrs

When: Wednesday July 29, 2026 2:00 PM

ISO New England will be performing a maintenance outage of the CROW Outage Scheduler in Production and Sandbox environments on Wednesday, July 29, 2026, from 14:00 to 16:00 Hrs. During this time, the CROW web application and web services will be intermittently unavailable.

On Thursday July 30th, 2026, between 12:30 and 14:30, ISO New England will be performing an outage in Sandbox environment to migrate FERC 2222 changes.

2026-07-28T19:28:18Z

When: Thursday July 30, 2026 12:30 PM

On Thursday July 30th, 2026, between 12:30 and 14:30, ISO New England will be performing an outage in Sandbox environment to migrate FERC 2222 changes. During this outage Sandbox eMKT, eFTR and DRMUI users may experience intermittent connectivity issues.

ISO New England will be performing a maintenance outage of eMarket, eFTR, and DRMUI in Production and Sandbox on Tuesday, July 28, 2026, from 15:00 to 16:30 Hrs

2026-07-28T00:01:50Z

When: Tuesday July 28, 2026 3:00 PM

ISO New England will be performing a maintenance outage of the eMarket, eFTR, and DRMUI applications on Tuesday, July 28, 2026, from 15:00 to 16:30 Hrs, in both Production and Sandbox environments. During the outage, eMarket and eFTR users may experience intermittent connectivity issues; DRMUI will be unavailable.

ISO New England will be taking a maintenance outage of the DDMS application on Wednesday, July 22, 2026, from 16:00 Hrs to 17:30 Hrs

2026-07-22T16:24:36Z

When: Wednesday July 22, 2026 4:00 PM

ISO New England will be taking a maintenance outage of the DDMS application on Wednesday, July 22, 2026, from 16:00 Hrs to 17:30 Hrs. The DDMS application will be intermittently unavailable during the outage window.

ISO New England will be performing a maintenance outage of the Customer and Asset Management System (CAMS) on Wednesday, July 22, 2026, from 17:05 to 17:25 Hrs.

2026-07-21T23:58:17Z

When: Wednesday July 22, 2026 5:05 PM

ISO New England will be performing a maintenance outage of the Customer and Asset Management System (CAMS) on Wednesday, July 22, 2026, from 17:05 to 17:25 Hrs. The CAMS production environment will be unavailable intermittently during the outage.

ISO New England will be performing a maintenance outage of the Customer and Asset Management System (CAMS) on Wednesday, July 21, 2026, from 17:05 to 17:25 Hrs.

2026-07-21T23:57:05Z

When: Wednesday July 22, 2026 5:05 PM

ISO New England will be performing a maintenance outage of the Customer and Asset Management System (CAMS) on Wednesday, July 21, 2026, from 17:05 to 17:25 Hrs. The CAMS production environment will be unavailable intermittently during the outage.

UPDATED: ISO New England will be taking maintenance outages of ISO Express, Web Services, and the ISO-NE homepage on Thursday, July 16, 2026, from 17:00 to 18:00 Hrs

2026-07-16T18:55:44Z

When: Thursday July 16, 2026 5:00 PM

UPDATED: ISO New England will be taking maintenance outages of ISO Express and Web Services, and the ISO-NE homepage (www.iso-ne.com), on Thursday, July 16, 2026, from 17:00 to 18:00 Hrs. During this window, all real-time data publishing will be delayed, and users may experience intermittent connectivity issues. There will be no data loss.

ISO New England will be taking a maintenance outage of ISO Express and Web Services on Thursday, July 16, 2026, from 17:00 to 18:00 Hrs

2026-07-16T17:24:03Z

When: Thursday July 16, 2026 5:00 PM

ISO New England will be taking a maintenance outage of ISO Express and Web Services on Thursday, July 16, 2026, from 17:00 to 18:00 Hrs. During this window, all real-time data publishing will be delayed, and users may experience intermittent connectivity issues. There will be no data loss.