EUROPE POWER-Spot slides on increased renewable wind power supply

* Wind power output offsets increased demand

* Oil fall weighs on other energy prices

PARIS, July 19 (Reuters) - European spot electricity prices for day-ahead delivery fell on Tuesday on increased supply from renewable wind power sources, while forward prices declined on oil glut concerns.

Wind power availability in Germany is expected to nearly double to 4.6 gigawatts (GW) on Wednesday from 2.4 GW the previous day, Thomson Reuters (Dusseldorf: TOC.DU - news) data showed.

Solar power (Other OTC: SOPW - news) supply in Germany will also rise by 560 megawatts (MW) day-on-day, while wind availability in neighbouring France will increase slightly by 280 MW during the same period, the data showed.

Power consumption in both countries is expected to be marginally firmer due to cooling demand as temperatures rise by an average 1.7 degree Celsius in Germany, and 0.3 degree Celsius in France on Wednesday.

German baseload power for day-ahead delivery fell 3.8 euros, or 11.18 percent, to 30.20 euros ($33.43) per megawatt-hour (MWh), while the equivalent French contract lost 2 euros or 4.88 percent, to 39.00 euros/MWh.

Rating agency Moody's said in a report on Tuesday that French wholesale electricity prices are likely to remain between 30-35 euros /MWh in the five years to 2021 in the absence of a carbon price floor.

France has said it will set a carbon price floor of about 30 euros a tonne in its 2017 finance bill in the absence of a Europe-wide action to lift prices, which are currently under 5 euros per tonne due to an oversupply of permits.

Along the forward power curve, price fell on Tuesday, tracking lower fuels which were kept lower by the fall in oil futures.

Oil prices eased as concerns over a crude and refined fuel glut outweighed an expected cut in U.S (Other OTC: UBGXF - news) . shale production and a probable further draw in U.S. crude inventories.

Benchmark German baseload power price for next year, Cal '17, was at 27.50 euros a megawatt-hour (MWh), 0.3 euro or 1.08 percent down. The equivalent French contract was at 32.85 euros/MWh, 0.3 euro or 0.9 percent down.

European coal prices for 2017 fell $0.5 or 0.83 percent to $59.85 a tonne. Front-year EU carbon allowances fell 0.12 euro or 2.47 percent to 4.73 euros a tonne.

In eastern European power, the Czech year-ahead position fell 0.17 percent to 28.65 euros, while the next day position fell 6.8 percent to 31.50 euros.

($1 = 0.9052 euros) (Reporting by Bate Felix; editing by Mark Heinrich)