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7.1. Maintenance

March 29, 2018: Unavailability confirmation - HD measurements
In accordance with the previous announcement and article 22.4. of the Storage code, due to the HD measurements on the UGS Okoli, the storage service will be unavailable 96 h in the period from April 04, 2018 from 06:00 h till April 08, 2018 till 06:00 h. In the same period the Operator will conduct activities that will be a result of disconnection of UGS Okoli from the transport system.


March 23, 2018: Change regarding the storage service unavailability time period
Regarding the previous announcement about the storage service unavailability, we hereby inform You that the activities that can not be rescheduled will be partially carried out in the period from March 28, 2018. from 06:00 h till March 30, 2018. till 06:00 h, in which time the storage service will be unavailable. HD measurement activities on the UGS Okoli will be postponed till April 2018, about which you will be informed in due time.
 

March 23, 2018: Unavailability confirmation - HD measurements:
In accordance with the previous announcement and article 22.4. of the Storage code, due to the HD measurements on the UGS Okoli, the storage service will be unavailable in the period from March 27, 2018. from 06:00 h till March 31, 2018. till 06:00 h. In the same period the Operator will conduct activities that will be a result of disconnection of UGS Okoli from the transport system.


March 12, 2018: UGS Okoli - Storage service unavailability on the gas day March 14, 2018
We hereby confirmed that the storage service will be unavailable in the period from 6:00 am on March 14, 2018 (Wednesday) to 6:00 am to March 15, 2018 (Thursday) for the purpose of connecting the pressure collector on the UGS Okoli.


March 6, 2018:
1. Maintenance activities:

Due to maintenance activities it could be possible that the storage UGS Okoli will be unavailable in the period between March 13 and March 15, 2018 for a maximum of 24 hours. Final confirmation will by delivered to the storage Users at least 19 hours in advance.
2. HD measurements:
In accordance with the article 22.4. of the Storage Code, due to the HD measurements on the UGS Okoli, the storage service will be unavailable in the period from March 27 from 06:00 h till March 31, 2018 till 06:00 h. Final confirmation will by delivered to the storage Users at least 19 hours in advance.


October 24, 2017: Limited injection capacity till April 1, 2018.
In accordance with the article 22 of the Storage code, the Storage System Operator informs all users about limited injection capacity of the UGS Okoli after the change of direction in to withdrawal mode till April 1, 2018. 


Planned procedures which impact the use of the Gas Storage System's capacities:
  • Hydrodynamic (HD) measurements in the underground gas storage deposit: withdrawal capacity 0 m3/h  and injection capacity 0 m3/h with a constant duration of up to 96 hours.HD measurements are planned to be carried out no later than 15 days from the end of the injection cycle or rather the withdrawal cycle of which the users will be notified at least 44 hours in advance.  
  • Annual maintenance work on the motorcompressor units:  in the time period from the 1st of November until 1st of April injection capacity up to Qut ≤ 80,000 m3/h gas. 
  • The Storage System Operator revises as required the planned gas storage service termination deadlines and finally confirms them by delivering a notification to the Storage System Users at least 44 hours in advance
  • Other notifications which can have an impact onthe use of Gas Storage System's capacities can be seen on the web site Operational Data.
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