If its 6% I would be pleasantly surprised, said CPI director of business affairs, Graham Barnard.
Any higher and Barnard said this would lead to electricity firms profiting as a result of further price increases on industry overheads.
Energy minister Steven Timms said that household electricity bills may rise by 3% and industry sectors may have to pay 6% more.
Business leaders have said that the European-wide emissions trading scheme, starting in 2005, would make them uncompetitive.
Industry has to compete internationally, and unlike the electricity groups it cannot just pass on costs to its customers, Barnard said.
Have your say in the Printweek Poll
Related stories
Latest comments
"Thank you for the opportunity to comment on this Jo, and PrintWeek!
Please feel free to get in touch with the Howden Print Team to arrange your own Free of Charge Cyber Micro-Penetration Test to help..."
"I never quite understand the statements such as "achieved such a positive outcome for this well-established business".
The established business unfortunately failed and no longer exists, a..."
"Genuinely sorry to read this."
Up next...

Protocols being strengthened
Software Circle hit by suspected payment fraud

'Precision and reliability'
EBB sets up new publishing wing

Continued investment
Bakers ups BakPac capacity with double Galaxy Packtech install

"Committed to building a stronger Stora Enso"