Full project score: overview and determination of post-project SAP rating
53.—(1) This article applies to an ECO4 project that meets the requirements of article 49.
(2) Where this article applies—
(a)the Administrator must determine the SAP rating of the domestic premises in accordance with paragraph (3) (“the post-project SAP rating”);
(b)the Administrator must then determine the annual cost savings of the ECO4 project in accordance with a methodology published in accordance with article 54; and
(c)finally, the Administrator must calculate the full project score in accordance with the formula in article 55(2).
(3) The post-project SAP rating is to be determined—
(a)either—
(i)pursuant to any post-project energy efficiency assessment referred to in article 49(3);
(ii)where the ECO4 project includes the installation of a data light measure or a standard alternative methodology measure to which article 51(2) applies, by using the energy cost rating equations and the adjusted cost savings for the data light measure or standard alternative methodology measure to calculate the change in the SAP rating of the domestic premises following the installation of the measure; and
(iii)where the ECO4 project includes the installation of a DHC alternative methodology measure, by using the energy cost rating equations and the result of the following formula to calculate the change in the SAP rating of the premises following the installation of the measure—
DHCalt – DHCstandard; or
(b)where the ECO4 project consists solely of data light measures to which article 51(2) does not apply, by treating the post-project SAP rating as being the same SAP rating as the pre-project SAP rating.