; or (VI) taking a combination of actions described in subclauses (I) through (V); and (ii) if the evaluation of the crediting system under paragraph (1)(A)(ii) describes a more-effective method of issuing Federal clean energy credits to clean energy resources, may make other modifications and improvements to the standard based on, and consistent with, the recommendations under paragraph (1)(F)(ii) that would have the effect of decreasing economy-wide emissions. (B) Requirement In making the compensatory adjustments under subparagraph (A)(i), the Secretary shall ensure that retail electricity suppliers that have exceeded the proportionate share of the reductions of the retail electricity suppliers required under paragraph (1)(A)(i)(II) shall not bear significant additional costs under this paragraph. (o) Regulations Not later than 1 year after the date of enactment of this section, the Secretary shall promulgate regulations to implement this section. . (b) Conforming amendment The table of contents of the Public Utility Regulatory Policies Act of 1978 (16 U.S.C. prec. 2601) is amended by adding at the end of the items relating to title VI the following: 609. Rural and remote communities electrification grants. 610. Federal clean energy standard. . 3. Clean energy research, development, demonstration, and deployment program (a) Establishment The Secretary of Energy shall establish a cross-cutting national program within the Department of Energy for the research, development, demonstration, and deployment of clean energy technologies and portfolios for the purpose of meeting the requirements established under section 610 of the Public Utility Regulatory Policies Act of 1978 (as added by section 2(a)). (b) Requirements In establishing the program under subsection (a), the Secretary of Energy shall— (1) identify and coordinate, across all relevant program offices throughout the Department of Energy, key areas of existing and future research with respect to a portfolio of technologies and approaches