IT NoticesIT NoticesºÚÁÏÍø will be performing a series of software upgrades on the Limit Exchange Portal (LEP) Sandbox application from 9:00 on Monday, 08/31/2026 through 17:00 on Friday, 09/04/20262026-08-29T00:20:30Z2026-08-29T00:20:30Z<strong>When:</strong> Monday August 31, 2026 9:00 AM<br/><p>ºÚÁÏÍø will be performing a series of software upgrades on the Limit Exchange Portal (LEP) Sandbox application from 9:00 on Monday, 08/31/2026 through 17:00 on Friday, 09/04/2026. The LEP Sandbox application will be intermittently unavailable during this timeframe.</p>2026-08-29T00:20:30ZISO-NE will be performing routine maintenance on the Foreword Capacity Tracking System, WPF and SPF System Environments  and the eMarket, eFTR, DRMUI, Wind Integration, and WPF system Sandbox environments on from 14:00 to 16:00.2026-08-27T00:00:18Z2026-08-27T00:00:18Z<strong>When:</strong> Thursday August 27, 2026 2:00 PM<br/><p>ISO-NE will be performing routine maintenance on the Foreword Capacity Tracking System, Wind Power Forecasting System Production, and Solar Power Forecasting System Environments on 8/27/26 from 14:00 to 15:00 and the eMarket, eFTR, DRMUI, Wind Integration, and Wind Power Forecasting system Sandbox environments on from 15:00 to 16:00. Foreword Capacity Tracking System, Wind Power Forecasting System Production environments, Solar Power Forecasting System production Environments and eMarket, eFTR, DRMUI, Wind Integration, WPF and SPF sandbox environments will not be available during this time.</p>2026-08-27T00:00:18ZºÚÁÏÍø will be taking a maintenance outage of VAR Capability Tracking (VARCT) on Wednesday, August 26, 2026, from 18:30 to 19:30 Hrs.2026-08-26T22:40:42Z2026-08-26T22:40:42Z<strong>When:</strong> Wednesday August 26, 2026 6:30 PM<br/><p>ºÚÁÏÍø will be taking a maintenance outage of VAR Capability Tracking (VARCT) on Wednesday, August 26, 2026, from 18:30 to 19:30 Hrs.</p>
<p>During the outage, users will have intermittent periods of being unable to connect to VARCT.</p>2026-08-26T22:40:42ZºÚÁÏÍø will conduct an outage of Sandbox Settlement Applications from August 25, 2026 14:00 to August 26, 2026 23:59 hrs. for software maintenance.2026-08-25T22:14:45Z2026-08-25T22:14:45Z<strong>When:</strong> Tuesday August 25, 2026 2:00 PM<br/><p>ºÚÁÏÍø will conduct an outage of Sandbox Settlement Applications from August 25, 2026 14:00 to August 26, 2026 23:59 hrs. for software maintenance.</p>
<p>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.</p>2026-08-25T22:14:45ZºÚÁÏÍø will be performing maintenance of Unit Dispatch Scheduling software in Production and Sandbox environments on Wednesday, August 26, 2026, from 11:00 to 16:00 Hrs2026-08-25T00:51:35Z2026-08-25T00:51:35Z<strong>When:</strong> Wednesday August 26, 2026 11:00 AM<br/><p>ºÚÁÏÍø will be performing maintenance of Unit Dispatch Scheduling software in Production and Sandbox environments on Wednesday, August 26, 2026, from 11:00 to 16:00 Hrs. During this window, there may be missing 5-minute locational marginal prices (LMPs) and Regulation Clearing Prices (RCPs), and generating units may receive stale DDPs/DNEs to the RTUs.</p>2026-08-25T00:51:35ZºÚÁÏÍø will be performing maintenance on Production servers between approximately 14:30 to 16:30 hours on Tuesday, August 25th, 2026.2026-08-25T00:01:38Z2026-08-25T00:01:38Z<strong>When:</strong> Tuesday August 25, 2026 2:30 PM<br/><p>ºÚÁÏÍø will be performing maintenance on Production servers between approximately 14:30 to 16:30 hours on Tuesday, August 25th, 2026.</p>
<p>During this outage window:</p>
<ul>
<li>There might be missing 5-minute locational marginal prices (LMPs) and Regulation Clearing Prices (RCPs).</li>
<li>The generating units might receive stale DDPs/DNEs (to the RTUs).</li>
<li>eMkt, eFTR, and DRMUI users may experience intermittent connectivity issues.</li>
</ul>2026-08-25T00:01:38ZºÚÁÏÍø will be performing a maintenance outage of the NX Production, Sandbox and LEP Sandbox environments, on 8/26/2026 from 14:00 to 15:00 Hrs.2026-08-24T21:06:36Z2026-08-24T21:06:36Z<strong>When:</strong> Wednesday August 26, 2026 2:00 PM<br/><p>ºÚÁÏÍø will be performing a maintenance outage of the NX Production, Sandbox and LEP Sandbox environments, on 8/26/2026 from 14:00 to 15:00 Hrs. The NX Production, Sandbox and LEP Sandbox environments will be unavailable during the outage.</p>2026-08-24T21:06:36ZºÚÁÏÍø will be taking a maintenance outage of various SMD Applications in Sandbox environments, on Thursday, August 20, 2026, from 14:00 to 16:00 Hrs2026-08-20T00:08:30Z2026-08-20T00:08:30Z<strong>When:</strong> Thursday August 20, 2026 2:00 PM<br/><p>ºÚÁÏÍø will be taking a maintenance outage of various SMD Applications in Sandbox environments, on Thursday, August 20, 2026, from 14:00 to 16:00 Hrs. During the outage, users will not be able to connect to the following applications in Sandbox environments: eMarket, eFTR, DRMUI, NEXTT, Internal Transactions, Submit Meter Reading, Submit Peak Contribution, Submit Monthly Regional Network Load, Submit Energy Inventory, Forward Reserve Market Auction, Forward Reserve Assignment and Financial Assurance Management.</p>2026-08-20T00:08:30ZºÚÁÏÍø will be performing a maintenance outage in  eMKT and eFTR Production environments on Thursday August 20th, 2026, between 15:30 and 17:30.2026-08-19T23:55:58Z2026-08-19T23:55:58Z<strong>When:</strong> Thursday August 20, 2026 3:30 PM<br/><p>ºÚÁÏÍø will be performing a maintenance outage in eMKT and eFTR Production environments on Thursday August 20th, 2026, between 15:30 and 17:30. During this outage, eMKT and eFTR application users may experience intermittent connectivity issues. DRMUI application will be unavailable.</p>2026-08-19T23:55:58ZISO-NE will be performing routine maintenance on the Foreword Capacity Tracking System, Wind Power Forecasting System Production environmenrts  and the eMarket, eFTR, DRMUI, Wind Integration, and WPF system Sandbox environments on from 14:00 to 16:00.2026-08-19T20:24:59Z2026-08-19T20:24:59Z<strong>When:</strong> Thursday August 27, 2026 2:00 PM<br/><p>ISO-NE will be performing routine maintenance on the Foreword Capacity Tracking System, Wind Power Forecasting System Production environments on 8/27/26 from 14:00 to 15:00 and the eMarket, eFTR, DRMUI, Wind Integration, and Wind Power Forecasting system Sandbox environments on from 15:00 to 16:00. Foreword Capacity Tracking System, Wind Power Forecasting System Production environments and eMarket, eFTR, DRMUI, Wind Integration, and WPF sandbox environments will not be available during this time.</p>2026-08-19T20:24:59Z