Wilful blindness

The ignorance which occurs when a person deliberately and wilfully refrains from inquiring into a situation or deliberately disregards a situation in the hope of profiting from it. It applies to assignees for value who seek to gain advantage by giving notice of an assignment under the Policies of Assurances Act 1867 ahead of previous assignees they know or suspect to exist who have not yet given notification. This conduct is not permitted as a means of an assignee gaining priority.

Wind risk

The risk that wind speed variations will reduce the volume of electricity generated by wind farms and therefore sales for wind power companies. The risk can be managed by a weather derivative based on wind power indices (WPIS). The average value of the index over any 12-month period is 100 in a normal year. An annual value of 95 indicates that the index is 5 per cent below normal for the region and leads to a payout. Wind farm developers, operators and financiers may all hedge against the wind risk.