Emergency System Operations

Curtailment of External Transactions STOP 08/14/2025, 21:00

2025-08-15T04:51:57Z

When: Thursday August 14, 2025 9:00 PM
ISO-NE is no longer curtailing external transactions as defined in OP-9 as of 08/14/2025, 21:00

Curtailment of External Transactions START 08/14/2025, 16:44

2025-08-15T00:46:57Z

When: Thursday August 14, 2025 4:44 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 08/14/2025, 16:44

Curtailment of External Transactions STOP 08/10/2025, 20:00

2025-08-11T04:16:57Z

When: Sunday August 10, 2025 8:00 PM
ISO-NE is no longer curtailing external transactions as defined in OP-9 as of 08/10/2025, 20:00

Curtailment of External Transactions START 08/10/2025, 17:30

2025-08-11T01:21:57Z

When: Sunday August 10, 2025 5:30 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 08/10/2025, 17:30

Curtailment of External Transactions STOP 07/29/2025, 20:00

2025-07-30T04:06:57Z

When: Tuesday July 29, 2025 8:00 PM
ISO-NE is no longer curtailing external transactions as defined in OP-9 as of 07/29/2025, 20:00

Curtailment of External Transactions START 07/29/2025, 16:45

2025-07-30T00:46:57Z

When: Tuesday July 29, 2025 4:45 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 07/29/2025, 16:45

Curtailment of External Transactions STOP 07/28/2025, 19:30

2025-07-29T03:36:57Z

When: Monday July 28, 2025 7:30 PM
ISO-NE is no longer curtailing external transactions as defined in OP-9 as of 07/28/2025, 19:30

::: Notice updated ::: Curtailment of External Transactions START 07/28/2025, 17:45

2025-07-29T01:41:57Z

::: Notice updated ::: When: Monday July 28, 2025 5:45 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 07/28/2025, 17:45

::: Notice deleted. Event posted in error. ::: Curtailment of External Transactions START 07/28/2025, 17:45

2025-07-29T01:36:57Z

::: Notice deleted. Event posted in error. ::: When: Monday July 28, 2025 5:45 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 07/28/2025, 17:45

M/LCC 2 Cancelled

2025-07-18T04:46:57Z

When: Thursday July 17, 2025 9:00 PM
�� is cancelling Master Local Control Center Procedure No. 2 (M/LCC 2), Abnormal Conditions Alert, on Thursday, July 17, 2025 at 21:00 in ALL OF NEW ENGLAND.