* Within-day gas prices were down 1.80 pence to 29.00 p/therm

* Day-ahead gas prices fell 1.5 pence to 28.50 p/therm

* Prices fell due to a "balanced system again after all these short days", a gas trader said.

* The British gas system is expected to be largely balanced, with demand forecast at 207.1 million cubic metres (mcm)  and supply seen at 207.4 mcm, according to National Grid data.

* In previous days the system faced undersupply. On Tuesday morning the supply gap was 31.4 mcm, but demand for gas fell on Wednesday, assisting the price move.

* Demand was still 47 mcm higher than the seasonal norm, down from 65 mcm the previous day.

* Norwegian gas flows to Britain are seen at 73 mcm/day on Wednesday, flat from Tuesday.

* Peak wind generation is expected to be 2.9 gigawatts (GW) on Wednesday and to rise to 5.8 GW on Thursday, out of a total metred capacity of 12 GW.

* Strong power production from wind turbines typically reduces demand for electricity from gas-fired power stations.

* Average daily temperatures in Britain are expected to reach 14.9 degrees Celsius on Wednesday and are seen falling to 13.4C on Thursday.

* Four Qatari liquefied natural gas (LNG) cargoes are expected at the South Hook terminal till July 5.

* The July gas contract fell by  0.30 pence to 27.40 p/therm.

* The day-ahead gas price at the Dutch TTF hub fell 0.42 euro to 10.68 euros per megawatt hour.

* Benchmark Dec-19 EU carbon contracts rose 0.07 euro to 25.19 euros per tonne.