Emergency System Operations

Special Request for Security Energy Transactions.

Tue, 20 Oct 2026 08:01:57 GMT

When: Tuesday October 20, 2026 12:00 AM
ISO New England is experiencing deficiencies in New Brunswick to New England tie flow requirements and is expecting this condition to exist for the following date and hours; Starting: October 20, 2026 00:00 Ending: October 20, 2026 23:59 ISO New England is requesting the submittal of Security Energy Transactions on the New Brunswick to New England tie lines during this time period. The estimated amount of SETs necessary to satisfy the requirements is 175 MW.

Special Request for Security Energy Transactions.

Mon, 19 Oct 2026 08:06:57 GMT

When: Monday October 19, 2026 12:01 AM
ISO New England is experiencing deficiencies in New Brunswick to New England tie flow requirements and is expecting this condition to exist for the following date and hours; Starting: October 19, 2026 00:01 Ending: October 19, 2026 23:59 ISO New England is requesting the submittal of Security Energy Transactions on the New Brunswick to New England tie lines during this time period. The estimated amount of SETs necessary to satisfy the requirements is 175 MW.

Special Request for Security Energy Transactions.

Sun, 18 Oct 2026 08:06:57 GMT

When: Sunday October 18, 2026 12:00 AM
ISO New England is experiencing deficiencies in New Brunswick to New England tie flow requirements and is expecting this condition to exist for the following date and hours; Starting: October 18, 2026 00:00 Ending: October 18, 2026 23:59 ISO New England is requesting the submittal of Security Energy Transactions on the New Brunswick to New England tie lines during this time period. The estimated amount of SETs necessary to satisfy the requirements is 175 MW.

Special Request for Security Energy Transactions.

Sat, 17 Oct 2026 08:51:58 GMT

When: Saturday October 17, 2026 6:00 AM
ISO New England is experiencing deficiencies in New Brunswick to New England tie flow requirements and is expecting this condition to exist for the following date and hours; Starting: October 17, 2026 06:00 Ending: October 17, 2026 23:59 ISO New England is requesting the submittal of Security Energy Transactions on the New Brunswick to New England tie lines during this time period. The estimated amount of SETs necessary to satisfy the requirements is 175 MW.

M/LCC 2 Cancelled

Sat, 08 Aug 2026 06:56:57 GMT

When: Friday August 7, 2026 11:00 PM
ISO New England is cancelling Master Local Control Center Procedure No. 2 (M/LCC 2), Abnormal Conditions Alert, on Friday, August 07, 2026 at 23:00 in ALL OF NEW ENGLAND.

M/LCC 2 Implemented on Friday, August 07, 2026 at 09:00 in ALL OF NEW ENGLAND

Fri, 07 Aug 2026 16:51:57 GMT

When: Friday August 7, 2026 9:00 AM
ISO New England is implementing Master Local Control Center Procedure No. 2 (M/LCC 2), Abnormal Conditions Alert, on Friday, August 07, 2026 at 09:00 in ALL OF NEW ENGLAND due to Capacity Deficiency. Master Local Control Center Procedure No. 2 requests that you will not engage in activities that may jeopardize the availability of resources or transmission under your control.

Curtailment of External Transactions STOP 07/08/2026, 20:00

Thu, 09 Jul 2026 03:56:57 GMT

When: Wednesday July 8, 2026 8:00 PM
ISO-NE is no longer curtailing external transactions as defined in OP-9 as of 07/08/2026, 20:00

Curtailment of External Transactions START 07/08/2026, 18:45

Thu, 09 Jul 2026 02:41:57 GMT

When: Wednesday July 8, 2026 6:45 PM
ISO-NE has begun curtailing external transactions as defined in OP-9 in order to mitigate an existing or anticipated Operating Reserve deficiency starting at 07/08/2026, 18:45

::: Notice updated ::: Curtailment of External Transactions START 07/03/2026, 18:20

Sat, 04 Jul 2026 06:01:57 GMT

::: Notice updated ::: When: Friday July 3, 2026 6:20 PM
ISO-NE has begun curtailing external transactions as defined in OP-9 in order to mitigate an existing or anticipated Operating Reserve deficiency starting at 07/03/2026, 18:20

M/LCC 2 Cancelled

Sat, 04 Jul 2026 05:51:57 GMT

When: Friday July 3, 2026 10:00 PM
ISO New England is cancelling Master Local Control Center Procedure No. 2 (M/LCC 2), Abnormal Conditions Alert, on Friday, July 03, 2026 at 22:00 in ALL OF NEW ENGLAND.