IT Notices

ISO New England will conduct an outage of Production Settlement Applications from on Tuesday, November 3rd from 14:00 to 16:00 hrs. for Annual Server Certificate renewal.

Tue, 03 Nov 2026 19:40:57 GMT

When: Tuesday November 3, 2026 2:00 PM

ISO New England will conduct an outage of Production Settlement Applications from on Tuesday, November 3rd from 14:00 to 16:00 hrs. for Annual Server Certificate renewal. During the outage users will not be able to connect to the following Production SMD Applications: Internal Transactions, Submit Meter Reading, Submit Peak Contribution, Submit Monthly Regional Network Load, and Financial Assurance Management. MIS Operational reports are delayed.

ISO New England will conduct an outage of the Sandbox NX Application on Thursday, November 5, 2026, from 11:00 to 13:00.

Tue, 03 Nov 2026 18:59:07 GMT

When: Thursday November 5, 2026 11:00 AM

ISO New England will conduct an outage of the Sandbox NX Application on Thursday, November 5, 2026, from 11:00 to 13:00.

During the outage users will not be able to connect to the Sandbox NX application.

The NX Application on the production system will undergo maintenance on Tuesday, 11/10/2026.

Mon, 02 Nov 2026 18:41:51 GMT

When: Tuesday November 10, 2026 11:00 AM

The NX Application on the production system will undergo maintenance on Tuesday, 11/10/2026.

Users can expect the application to be unavailable between 11:00 and 13:00.

ISO New England will conduct an outage of Sandbox SMD Applications on Tuesday, November 3, 2026, from 14:00 to 16:00.

Wed, 28 Oct 2026 23:49:17 GMT

When: Tuesday November 3, 2026 2:00 PM

ISO New England will conduct an outage of Sandbox SMD Applications on Tuesday, November 3, 2026, from 14:00 to 16:00.

During the outage users will not be able to connect to the following Sandbox SMD Applications: Internal Transactions, Submit Meter Reading, Submit Peak Contribution, Submit Monthly Regional Network Load, and Financial Assurance Management.

ISO New England will be performing maintenance on its Sandbox environments on 10/29/2026, from 11:00 to 13:00.

Wed, 28 Oct 2026 17:17:46 GMT

When: Thursday October 29, 2026 11:00 AM

ISO New England will be performing maintenance on its Sandbox environments on 10/29/2026, from 11:00 to 13:00.

During this outage, eMKT sandbox, eFTR sandbox and DRMUI sandbox applications will be unavailable.

ISO New England will be performing a maintenance outage of CROW Outage Scheduler in Production and Sandbox environments on Wednesday, October 28, 2026 between 14:00 and 16:00 EST.

Tue, 27 Oct 2026 23:46:00 GMT

When: Wednesday October 28, 2026 2:00 PM

ISO New England will be performing a maintenance outage of CROW Outage Scheduler in Production and Sandbox environments on Wednesday, October 28, 2026 between 14:00 and 16:00 EST. During this time, Production and Sandbox CROW web application and web services will be intermittently unavailable.

ISO New England will be taking a maintenance outage of the Markets and SMD SSO homepages on Thursday October 29th from 19:00 to 19:15 hrs.

Tue, 27 Oct 2026 20:36:21 GMT

When: Thursday October 29, 2026 7:00 PM

ISO New England will be taking a maintenance outage of the Markets and SMD SSO homepages on Thursday October 29th from 19:00 to 19:15 hrs. During this time the sites will be unavailable.

ISO New England will conduct an outage of SMD Settlement Applications on Tuesday October 27, 2026 from 14:10 to 17:00 for software maintenance.

Mon, 26 Oct 2026 20:42:31 GMT

When: Tuesday October 27, 2026 2:00 PM

ISO New England will conduct an outage of SMD Settlement Applications on Tuesday October 27, 2026 from 14:10 to 17:00 for software maintenance. During this time, users will not be able to connect to the following SMD Applications: Internal Transactions, Submit Meter Reading, Submit Peak Contribution, Submit Monthly Regional Network Load, Submit Energy Inventory and Financial Assurance Management (FAM). MIS Operational reports will be delayed.

The NX Application on the production system will undergo maintenance on Wednesday, 11/04/2026.

Mon, 26 Oct 2026 17:19:04 GMT

When: Wednesday November 4, 2026 11:00 AM

The NX Application on the production system will undergo maintenance on Wednesday, 11/04/2026.

Users can expect the application to be unavailable between 11:00 and 13:00.

ISO New England will conduct an outage of Sandbox Settlement Applications on Wednesday, October 21, 2026, from 14:00 to 18:00 for software maintenance.

Wed, 21 Oct 2026 22:59:43 GMT

When: Wednesday October 21, 2026 2:00 PM

ISO New England will conduct an outage of Sandbox Settlement Applications on Wednesday, October 21, 2026, from 14:00 to 18:00 for software maintenance.

During this outage users will not be able to connect to the following Sandbox SMD Applications: Internal Transactions, Submit Meter Reading, Submit Peak Contribution, Submit Monthly Regional Network Load.

The Financial Assurance Management application will also be unavailable.