Calculation of eligible metered heat generated by biomass plants
30.—(1) The eligible metered heat in kWh for an accredited domestic plant which is a biomass plant for any quarterly period is calculated in accordance with the following formula—
where—
A is calculated in accordance with paragraph (2);
B is calculated in accordance with paragraph (3);
C is calculated in accordance with paragraph (5);
D is calculated in accordance with paragraph (7); and
E is calculated in accordance with paragraph (8).
(2) A is—
(a)1 if the accredited domestic plant is a biomass boiler; or
(b)1.2 if the accredited domestic plant is a biomass stove.
(3) Subject to paragraph (4), B is the heat in kWh recorded by eligible meters positioned in accordance with regulation 15 generated by—
(a)the accredited domestic plant; or
(b)the accredited domestic plant and any additional plants if the heat generated by the accredited domestic plant is recorded together with the heat generated by such additional plants.
(4) Where any heat referred to in paragraph (3) is recorded at the point where it leaves a domestic hot water cylinder, the heat recorded at that point is multiplied by 1.43 before being included (with the heat recorded at any other point) in B.
(5) C is—
(a)subject to paragraph (6), the heat in kWh generated by any additional plants included in B if the relevant metering statement specifies that eligible meters must be positioned in accordance with regulation 15(3); or
(b)0 in any other case.
(6) Where any heat generated by any additional plants included in B is generated by an air source heat pump for the purposes of defrosting, all heat generated by that air source heat pump is multiplied by 0.97 before being included in C.
(7) D is—
(a)the electricity consumption in kWh by any additional plants if the relevant metering statement specifies that eligible meters must be positioned in accordance with regulation 15(4); or
(b)0 in any other case.
(8) E is—
(a)if B includes heat generated by any additional plants which use a fuel when generating heat, the energy content of that fuel in kWh if the relevant metering statement specifies that eligible meters must be positioned in accordance with regulation 15(4); or
(b)0 in any other case.
(9) In this regulation, “relevant metering statement” means the metering statement for the accredited domestic plant.