PARIS, Sept 25 (Reuters) - European prompt electricity prices for day-ahead delivery slid on Wednesday on the back of forecasts showing a slip in French demand, increased nuclear power availability, and a sharp rise in German wind generation.
* German over-the-counter baseload power price for Thursday delivery lost 3.4% to 41.50 euros ($45.65) a megawatt hour (MWh) by 0900 GMT.
* The equivalent French contract for day-ahead delivery was down 7.8% at 38 euros/MWh.
* German wind power supply is expected to jump by 3.7 gigawatts (GW) day-on-day on Thursday to 11.7 GW, according to Refinitiv Eikon data. Solar power output will fall by 450 megawatts (MW) to 3.2 GW.
* French wind power will add 160 MW on Thursday to 6.1 GW, while solar production will increase by 90 MW to around 1 GW, the data showed.
* French nuclear reactor supply availability rose 3 percentage points to 67% of the maximum following the restart of EDF’s Chooz 1 reactor after an unplanned outage.
* On the demand side, French power consumption is projected to drop by 250 MW on Thursday to 46.8 GW. The average temperature in France will rise by 1.4 degrees Celsius.
* In Germany, electricity consumption is expected to rise by 170 megawatts day-on-day to 65 GW, Refinitiv data showed.
* On the front month, the German October delivery contract fell 2.6% to 39.40 euros/MWh. The French equivalent was at 44.25 euros/MWh, down 1.8%.
* In the year-ahead market, the German 2020 delivery baseload was down 1.2% at 48.4 euros/MWh, a two-week low, tracking a fall in coal and carbon emissions permit prices.
* The French contract was untraded at its 52 euros/MWh close from the previous session, its lowest level since Sept. 10.
* European CO2 permits for December 2019 were down 1.4% at 25.18 euros a tonne.
* Hard coal for northern European delivery in 2020 lost 1.3% to $66.8 a tonne.
* In eastern Europe, the Czech day-ahead baseload contract was a tick higher at 48 euros/MWh, up 0.5%. The year-ahead contract dropped 1.7% to 51.50 euros/MWh. ($1 = 0.9091 euros) (Reporting by Paris Newsroom Editing by Gus Trompiz)