The study out today by economists Andrew Leach and Trevor Tombe concludes that consumers would face an additional $2.25 on their monthly power bills for the four remaining years of a group of coal power contracts that companies are trying to void.

The province has released new documents, dozens and dozens of pages, to make its public case in relation to legal action against several power companies.

The Alberta government is going to court to challenge a regulation it says will saddle consumers with billions of dollars in losses from coal-fired power agreements.