Unexpected mechanical issue that will require extensive repairs and downtime to Rio Unit #1.
Update 8/31
The turbine bearing should be back to the Rio Powerhouse the week of September 15th or 22nd and installation and rebuilding of the unit will begin. It will be a lengthy process, but I should know more of a definitive timeline, once the bearings are back onsite. The contractor is scheduled to be onsite for delivery and will immediately begin rebuilding.
Update 8/13:
Mongaup Rio Powerhouse with 1 barrel.
The Rio turbine bearing has been removed and should be at the machine shop for a complete overhaul.
We won’t have a definitive timeline on the repair until they complete their assessment and know exactly what is needed.
Original message July 25th. Due to the complexity and scope of the necessary repairs, there will be an unavoidable impact on our operations, including any 2-unit release events, such as Sunday, 8/17 and Saturday, 8/30. …The unit outage has been extended until August 30, 2025, at the earliest. Our operation and civil teams are working together to assess the full extent of the issue and to implement a comprehensive repair plan as quickly and safely as possible.
We sincerely apologize for any disruption or inconvenience this outage causes to your group’s planned events. Please know that we are committed to keeping you informed throughout the repair process and will provide updates as we make progress.
from
Rebecca Vicaretti-Serrano, Property Compliance Supervisor – Mongaup
