An economist is warning the Victorian Government's restrictive wind farm planning guidelines could increase electricity bills by up to $2 billion over the next decade.

The State Government introduced new planning rules in August last year that banned the construction of wind farms in much of the state and gave households the power to veto turbines within two kilometres of their homes.

In order to meet its 20 per cent emissions reductions target the State Government will need to roll out extensive new renewable energy projects over the next decade.

Modelling by Bloomberg New Energy Finance predicts the decision could force up the price of electricity for Victorians by up to $2 billion over the next decade.

Energy analyst, Kobad Bhavnagri, says wind power is the cheapest and most reliable way to reach emission reduction targets.

"If you are not building the most economical plants, you have to build more expensive plants instead, and in the end consumers are the ones that will have to pay the price," he said.

No new wind energy projects have been announced since the rules were introduced.

Planning Minister Matthew Guy did not respond the the ABC's request for comment.