4.—(1) Renumber regulation 5 as paragraph (1) of that regulation.
(2) In regulation 5(1) as so renumbered—
(a)after sub-paragraph (d) omit “and”;
(b)after sub-paragraph (e) insert—
“; and
(f)if it is a heat pump for which the RHI date is on or after the second relevant date, it meets the requirements specified in paragraph (2).”.
(3) After regulation 5(1), insert—
“(2) The requirements specified in this paragraph are—
(a)that one or more eligible electricity meters or on-board meters are installed to record separately any—
(i)electricity supplied to the plant which is used to generate heat;
(ii)electrical input into any supplementary electric heater controlled by the same control system which governs the heat pump; and
(iii)electrical input into any immersion heater for a domestic hot water cylinder where the immersion heater is controlled by the same control system which governs the heat pump;
(b)that, in respect of any eligible electricity meter installed in accordance with sub-paragraph (a)—
(i)in the case of a meter installed before the second relevant date, a certified installer was responsible for installing it or for checking that it was properly installed;
(ii)in the case of a meter installed on or after the second relevant date, a certified installer was responsible for installing it;
(iii)the meter is properly calibrated, properly installed and in good working order; and
(iv)the meter has a label which identifies the plant or other components being metered.”.