European shares higher, helped by Wall Street
* FTSEurofirst 300 index up 0.73 percent
* German energy companies fall sharply
* Autos gain after strong car sales data
By Atul Prakash and Danilo Masoni
LONDON/MILAN, Sept 15 (Reuters) - European shares were slightly higher in late trading 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 both fell more than 4 percent 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.
"Uncertainty about the Fed's likely decision continues. If there is no rate hike on Thursday, it could also give a signal that the Fed has some concerns about the health of the economy," said Christian Stocker, strategist at UniCredit in Munich. Continuación...