1. A plant meets the requirements in this Schedule where it is certified under—
(a)the Microgeneration Certification Scheme as installed in accordance with a relevant installation standard in that scheme, or
(b)a scheme where—
(i)installers are certified to that scheme’s standards by a certification body or organisation accredited by UKAS to the standard approved by the Secretary of State under regulation 4(1)(a),
(ii)the plant is installed in accordance with the installation requirements applicable to the plant under that scheme when the plant is first commissioned and which are equivalent to a relevant installation standard, and
(iii)that scheme is equivalent to the Microgeneration Certification Scheme.