; and (2) in calendar year 2035 and each subsequent calendar year, such percentage shall not be less than 100 percent of the total electric energy sold at the retail level in the United States. (b) Consultation The Secretary shall carry out this section in consultation with the Administrator of the Environmental Protection Agency. (c) Rule of construction Nothing in this section shall be construed to preempt or limit State actions to enhance renewable energy generation or energy efficiency. . II Energy efficiency 201. National energy efficiency standard (a) In general Title VI of the Public Utility Regulatory Policies Act of 1978, as amended by section 101 of this Act, is further amended by adding at the end the following: 611. National energy efficiency standard (a) In general The Secretary shall promulgate regulations in accordance with this section setting end-user— (1) electricity savings targets for retail electric energy suppliers