Annual Maintenance Schedule

Download the Annual Maintenance Schedule for New England's generating facilities, with planned outages and an operable capacity analysis. This is an assessment of the margin between available resources and expected demand plus required operating reserves. The file can be opened via the CSV link, or an enhanced version can be opened by downloading and using this Microsoft Excel based tool.

 

Instructions for tool use (macros will need to be enabled):

  • Download and open the CSV file which will be viewed
  • Open the tool above
    • The tool can be saved to a local folder (it does not need to be downloaded for each use)
  • With the CSV file open on your desktop, click the Load New Data button and select the file to load
  • Click the Load File button
  • Additional instructions can be found in the tool

 

Annual Maintenance Schedules for days prior to April 2021 can be found on the Annual Maintenance Schedule Archive page.

 

 
Annual Maintenance Schedule
Description Timestamp Download
AMS Operable Capacity Analysis - April 01, 2026 04/01/2026 08:05 AM EDT CSV
AMS Operable Capacity Analysis - March 18, 2026 03/18/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 19, 2026 03/19/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 20, 2026 03/20/2026 08:05 AM EDT CSV
AMS Operable Capacity Analysis - March 21, 2026 03/21/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 22, 2026 03/22/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 23, 2026 03/23/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 24, 2026 03/24/2026 08:05 AM EDT CSV
AMS Operable Capacity Analysis - March 25, 2026 03/25/2026 08:07 AM EDT CSV
AMS Operable Capacity Analysis - March 26, 2026 03/26/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 27, 2026 03/27/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 28, 2026 03/28/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 29, 2026 03/29/2026 08:09 AM EDT CSV
AMS Operable Capacity Analysis - March 30, 2026 03/30/2026 08:06 AM EDT CSV
AMS Operable Capacity Analysis - March 31, 2026 03/31/2026 08:06 AM EDT CSV