Centrica subsidiary, British Gas Trading, has put in place a large multi-season winter weather hedge that uses a daily collar structure, rather than the more traditional heating degree-day index, to determine season-end payouts. Gearoid Lane, head of electricity supplies at Centrica, who helped put together the deal, says the collar structure allows coverage to be much more concentrated in particular high risk months, such as January. "We were able to sculpt the coverage much more to our risk," he adds. One weather official says collar structures are gaining popularity because of that flexibility.
November 10, 2002