Archive: BBC reports California's 2001 energy blackouts

The Labour leader Ed Milband has pledged to freeze gas and electricity bill for 20 months, if he wins the 2015 election.

Energy firms claimed the plan could lead to blackouts as happened in California in 2001, when energy deregulation left many power companies bankrupt.

This video contains excerpts of BBC reports from May 2001, covering the California blackouts.