UK GAS-Prices mixed on lower wind, weaker carbon and warm weather

June 2 (Reuters) - British wholesale gas prices were mixed
on Wednesday morning, with the day-ahead rising on lower wind
forecasts but other contracts weakening as warm weather curbed
demand and carbon prices fell.

* The day-ahead contract rose by 0.30 pence to
63.75
pence per therm by 0834 GMT.

* The September contract was down 0.90 pence at
63.10
p/therm, and the Q3 gas was 0.75 pence lower at
62.75 p/therm.

* UK gas for power demand is forecast to adjust 8 mcm/d up
for the
day-ahead due to weaker wind power generation, Refinitiv
analysts said.

* Peak wind generation is forecast at 7.9 gigawatts (GW) on
Wednesday and 6.3 GW on Thursday, out of total metered capacity
of around 20 GW, Elexon data showed.

* The UK system was around 16 million cubic metres (mcm)
over-supplied, with demand forecast at 139 mcm and supply at 154
mcm/day, National Grid data showed.

* Local distribution zone (LDZ) demand remained low due to
the
warm weather, at 75 million cubic metres (mcm), Refinitiv said.

* The milder weather allowed for more injection into
depleted
storage, providing some relief to prices further out on the
curve, a trader said.

* The Dutch day-ahead gas contract was down by
0.28
euro at 25.85 euros per megawatt hour (MWh), and the July
contract was 0.05 euro lower at 25.75 euros per
megawatt hour.

* The carbon market and Wednesday's UK auction should also
continue to impact gas markets, analysts said.

* "The UK auction today might add bearish pressure, serving
as a
reminder of the expected unwinding of UK companies EUA hedging,"
Refinitiv analyst Anders Nordeng said.

* The benchmark Dec-21 EU carbon contract was down
by
0.86 euro at 51.55 euros a tonne.

* The equivalent Dec-21 British carbon contract
was down
0.65 pounds at 47.50 pounds per tonne.
(Reporting by Nora Buli; editing by Barbara Lewis)