This excerpt taken from the XEL 10-K filed Feb 27, 2009.
to Designate. Each Top Hat Participant may designate upon a Beneficiary Designation Form furnished by and filed with the Committee, one or more primary Beneficiaries or alternative Beneficiaries to receive all or a specified part of such Top Hat Participants benefit in the event of such Top Hat Participants death. The Top Hat
Participant may change or revoke any such designation from time to time without notice to or consent from any Beneficiary. No such designation, change or revocation shall be effective unless executed by the Top Hat Participant and received by the Committee during the Top Hat Participants lifetime.