20. After article 24 insert—
24A.—(1) The Administrator must publish a methodology for the purposes of determining the carbon saving to be attributed to a deemed score qualifying action.
(2) The Administrator must publish—
(a)a methodology for the purposes of determining the cost saving to be attributed to a deemed score qualifying action falling within paragraph (3), and under that methodology, the calculation of the cost saving must be based on the absence of a working heating system in the premises where the repaired or replaced boiler or electric storage heater is situated; and
(b)a methodology for the purposes of determining the cost saving to be attributed to a deemed score qualifying action not falling within paragraph (3).
(3) A deemed score qualifying action falls within this paragraph if it is—
(a)the repair or replacement of a qualifying boiler;
(b)the repair of a qualifying electric storage heater; or
(c)the replacement of a qualifying electric storage heater by another electric storage heater.
(4) Before publishing a methodology under this article, the Administrator must have regard to—
(a)the Standard Assessment Procedure;
(b)the Reduced Data Standard Assessment Procedure; and
(c)the desirability of the methodology being easy to use.”.