UPDATED to reflect the new timeframe. ISO New England will be performing a maintenance outage of SMD Applications and Web Services on Tuesday, October 20, 2026, from 14:00 to 23:00 Hrs.
To support readiness for the FERC Order No. 2222 Key Project, ISO New England will be performing updates to SMD Settlement Applications. Please see below for the specific applications and data that will be affected at this time.
During the outage, the following applications will be unavailable in the Production environment: Internal Market Monitoring Asset Characteristics (IMMAC), Settlement Market System (SMS), Customer and Asset Management System (CAMS), Financial Assurance Management (FAM), Bids & Offers (eMarket), Financial Transmission Rights (eFTR), Demand Resource Market User Interface (DRMUI), Internal Transactions, Submit Meter Reading, Submit Peak Contribution, and Submit Monthly Regional Network Load.
The following applications will be unavailable in the Sandbox environment: Financial Assurance Management (FAM), Internal Transactions, Submit Meter Reading, Submit Peak Contribution, and Submit Monthly Regional Network Load.
MIS operational reports will be delayed.
There may be missing 5-minute Locational Marginal Prices (LMPs) and Regulation Clearing Prices (RCPs). DDPs/DNEs for the generating units and Demand Response Resources (DRRs) might not be available; generating units and DRRs may receive stale DDP/DNE signals (on the RTUs) during this time.
The Web Services API and CSV reports will still be accessible during the outage, but will not receive new data from 15:30 to 17:30 Hrs. Data from 15:30 to 17:30 Hrs will be processed and available after the outage has concluded.
