So as to provide for an orderly transition with respect to the rate-making effect of this section, those electric light and power companies which, as of the effective date of this section, are permitted by the West Virginia Public Service Commission to utilize deferred accounting for purposes of recovery from ratepayers of any portion of business and occupation tax expense under this article shall be permitted, until the time that action pursuant to a rate application or order of the commission provides for appropriate alternative rate-making treatment for that expense, to recover the tax expense imposed by this section by means of deferred accounting to the extent that the tax expense imposed by this section exceeds the level of business and occupation tax under this article currently allowed in rates.
W. Va. Code § 11-13-2o