W.S. § 39-23-105 — Exemptions

(a) No tax shall be imposed upon electricity which is
produced from any generating facility owned or operated by the
federal government, state of Wyoming or by any county or
municipality in this state.
(b) No tax shall be imposed upon electricity which is
produced for the personal consumption of the producer. For
purposes of this subsection, "electricity produced for the
personal consumption of the producer" shall include any excess
production of electricity that does not exceed five hundred
(500) kilowatt hours in any twenty-four (24) hour period.
(c) Except as otherwise provided in this subsection, no
tax shall be imposed on any advanced nuclear reactor operated in
accordance with W.S. 35-11-2101. Beginning July 1, 2035, a
taxpayer shall only qualify for the exemption authorized under
this subsection for any month that not less than eighty percent
(80%) of the advanced nuclear reactor's uranium used for
producing electricity was sourced from uranium mines located in
the United States. The burden shall be on the taxpayer to
establish entitlement to the exemption authorized under this
subsection. Not later than June 1 of each year, the department
of revenue shall report to the joint revenue interim committee
on the amount of taxes that were exempted under this subsection
during the prior tax year.