(1) Subject to the provisions of this Chapter and any regulations made under it, a duty of excise, to be known as electricity tax, shall be charged, levied and paid at the rates specified in Schedule 2 on all electricity supplied in the State to consumers.
(2) Subsection (1) shall apply to all electricity supplied by a supplier, for consumption by such supplier, where the average quantity so supplied in a calendar year exceeds 50 units.