The committee claims in order to hit the targets, there could be a 25 per cent rise in electricity prices by 2022.
In addition, gas prices may increase by between 18 and 37 per cent by 2020.
Mr Turner told the news agency: "I cannot deny that there will be higher electricity and gas prices.
"But that adverse impact can be offset by energy efficiency improvement subsidies."
This Is Money reported that the firm had set some 300 staff aside to deal with queries about the gas or electricity tariffs.
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