In the event of a covered event that may produce losses in excess of funds that may be immediately available to the association, or in the event that the association determines that it will otherwise have a claim deficit or any other deficit, then the association, with consent of the commissioner, shall have the power to levy recoupable and nonrecoupable assessments against assessable insurers based upon their percentage of participation. The minimum reserve, as set forth in the plan of operation, shall not be considered as funds available to the association in determining whether to levy a recoupable or nonrecoupable assessment.