European shares higher, helped by Wall Street
* FTSEurofirst 300 index up 0.85 percent
* German energy companies fall sharply
* Autos gain after strong car sales data (Updates with closing prices)
By Atul Prakash and Danilo Masoni
LONDON/MILAN, Sept 15 (Reuters) - European shares closed higher on Tuesday, helped by a positive start at Wall Street, but with German energy firms RWE and E.ON lower after a report they needed to set aside more money to shut down nuclear power plants.
Volumes remained thin as investors were reluctant to make big bets before the Federal Reserve decides on Thursday whether to raise U.S. interest rates for the first time since 2006.
Shares in RWE and E.ON fell 3.3 percent and 6.2 percent respectively after Spiegel Online said they were short as much as 30 billion euros ($34 billion) of the money they need to set aside to build a safe disposal site for nuclear waste as part of Germany's exit from nuclear power.
E.ON said that nuclear provisions were adequate.
By the close the pan-European FTSEurofirst 300 index was up 0.85 percent at 1,405.49 points, helped by a rise in U.S. stocks. Continuación...