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UK GAS-Prices rise as Norway flows drop ahead of maintenance

June 7 (Reuters) - British wholesale gas prices rose on Friday as supplies from Norway fell ahead of maintenance on a large field, recouping some of the losses of recent days.

* Day-ahead gas was up 1.75 pence at 28.75 pence per therm by 0800 GMT.

* Within-day gas was up 1.35 pence at 28.25 p/therm.

* Norwegian gas flows were expected to be 18 million cubic metres (mcm) lower on Friday as production from the Troll field was reduced in preparation for maintenance on Saturday.

* "The reduction in Langeled makes Saturday tighter than previously expected," Refinitiv gas analysts said in a daily note.

* Maintenance at Troll, one of the North Sea's largest gas fields, is expected to reduce output by 22 mcm over the weekend and by 41.5 mcm from Monday until the end of the month.

* British and Dutch gas prices have been volatile in the past two weeks in the face of high LNG imports, a broader falling energy complex and the onset of the annual maintenance season.

* The system was more or less balanced on Friday, with demand seen at 177.2 mcm and supply forecast at 176.1 mcm.

* Send-out from LNG terminals is expected to be steady at 16 mcm on Friday, though such levels are far lower than last week's 60 mcm.

* Only one liquefied natural gas (LNG) tanker was confirmed to arrive in Britain, Refinitiv Eikon shipping data showed on Friday.

* Peak wind generation is expected to rise to 6.7 gigawatts (GW) on Friday from about 2.8 GW on Thursday, out of total metered capacity around 12.1 GW, Elexon data shows.

* Further along the curve, the July contract rose 1.35 pence to 28.35 p/therm.

* The day-ahead gas price at the Dutch TTF hub was up 0.47 euros at 10.90 euros per megawatt hour.

* The benchmark Dec-19 EU carbon contract rose 0.21 euros to 24.19 euros a tonne. (Reporting by Sabina Zawadzki Editing by David Goodman)