UK GAS-Prices rise on oil, carbon support

LONDON, Aug 28 (Reuters) - British wholesale gas prices rose on Wednesday morning, supported by bullish oil and carbon emission prices.

* Day-ahead gas rose by 0.30 pence to 28.00 p/therm by 0900 GMT.

* The September contract rose by 0.72 pence to 29.00 p/therm.

* "The main driver seems to be September," said Oliver Sanderson, a gas analyst at Refinitiv. "It is up and pulling the day-ahead with it."

* The month-ahead rise is largely driven by bullish oil and carbon emission prices, gas traders said.

* The benchmark Dec-19 EU carbon contract rose by 0.62 euros to 26.03 euros per tonne.

* Brent crude futures rose after an industry report showed stockpiles in the United States, the world's biggest oil user, fell more than expected.

* Traders said they expect volatility, however, as gas fundamentals remain bearish.

* UK within-day price was down by 0.40 pence to 28 p/therm on increased flows via the Langeled pipeline from Norway.

* Flows via the Langeled pipeline into Britain more than doubled to 44 mcm on Wednesday due to a shutdown of Emden, a receiving terminal of Norwegian gas in Germany.

* Flows from Britain to the continent via the Interconnector pipeline remained low, however, meaning the additional Norwegian gas will stay in Britain on Wednesday.

* Emden is expected to partially reopen either later in the day or on Thursday, with Langeled flows falling on Thursday.

* But about half of the drop will be offset by a drop in gas demand for power generation on stronger wind production, Sanderson said.

* UK wind output was predicted to rise to 9.7 Gigawatt (GW) on Thursday from 4.4 GW on Wednesday, Elexon data showed.

* In the Dutch market, day-ahead gas at the TTF hub was down 0.20 euros at 10.25 euros per megawatt hour.

* The TTF September contract rose by 0.15 euros to 10.35 euros/MWh. (Reporting by Ekaterina Kravtsova, editing by Deepa Babington)