Temporary power supplier APR Energy is in talks to be bought out by a consortium that includes its largest shareholder, Fairfax Financial Holdings.

Shares of the company, which rents out turbines and generators to cover electricity shortfalls, rose as much as 66 per cent on Monday.

Jacksonville, Florida-based APR Energy had a market value of about £88 million based on the roughly 94 million shares it had outstanding as of Friday's close.

APR said there was no certainty that any firm offer would be made by the consortium, which also includes ACON Investments LLC and Albright Capital Management LLC.

Fairfax, ACON and Albright were not immediately available for comment.

APR's stock has fallen about 83 per cent in the past year.

The company, a rival to Scottish temporary power supplier Aggreko, has been hit by the termination of a key contract in Libya and increasing political tensions in some of the emerging markets in which it operates.