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The Renewable Heat Incentive Scheme and Domestic Renewable Heat Incentive Scheme (Amendment) (No. 2) Regulations 2017
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- UK Statutory Instruments
- 2017 No. 857
- PART 3
- Regulation 15
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Amendment to regulation 29 (calculation of deemed annual heat generation)
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15. In regulation 29, for paragraphs (2) to (5) substitute—
“(2) If the accredited domestic plant is a biomass plant which provides space heating, but not heating for domestic hot water, to the RHI property, the deemed annual heat generation is—
(a)for an accredited domestic plant with a tariff start date before the second relevant date, the heat demand for space heating specified in the relevant EPC for that property; or
(b)for an accredited domestic plant with a tariff start date on or after the second relevant date, the lower of—
(i)the heat demand for space heating specified in the relevant EPC for that property; or
(ii)25,000 kWh.
(3) If the accredited domestic plant is a biomass plant which provides both space heating and domestic hot water heating to the RHI property, the deemed annual heat generation is—
(a)for an accredited domestic plant with a tariff start date before the second relevant date, the heat demand for space heating and water heating specified in the relevant EPC for that property; or
(b)for an accredited domestic plant with a tariff start date on or after the second relevant date, the lower of—
(i)the heat demand for space heating and water heating specified in the relevant EPC for that property; or
(ii)25,000 kWh.
(4) If the accredited domestic plant is a heat pump which provides space heating, but not heating for domestic hot water, to the RHI property, the deemed annual heat generation is—
(a)for an accredited domestic plant with a tariff start date before the second relevant date, calculated in accordance with the following formula—
where—
(i)
A is the heat demand for space heating specified in the relevant EPC for that property; and
(ii)
B is the seasonal performance factor for the heat pump; or
(b)for an accredited domestic plant with a tariff start date on or after the second relevant date, the lower of—
(i)the result of the formula in sub-paragraph (a); or
(ii)the result of the following formula—
where—
(aa)
C is 20,000 kWh in the case of an air source heat pump, or 30,000 kWh in the case of a ground source heat pump; and
(aa)
B is the seasonal performance factor for the heat pump.
(5) If the accredited domestic plant is a heat pump which provides both space heating and domestic hot water heating to the RHI property, the deemed annual heat generation is—
(a)for an accredited domestic plant with a tariff start date before the second relevant date, calculated in accordance with the following formula—
where—
(i)
A is the heat demand for space heating and water heating specified in the relevant EPC for that property; and
(ii)
B is the seasonal performance factor for the heat pump; or
(b)for an accredited domestic plant with a tariff start date on or after the second relevant date, the lower of—
(i)the result of the formula in sub-paragraph (a); or
(ii)the result of the following formula—
where—
(aa)
C is 20,000 kWh in the case of an air source heat pump, or 30,000 kWh in the case of a ground source heat pump; and
(bb)
B is the seasonal performance factor for the heat pump.”.
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