; and (II) certified by the Secretary or the Commission. (iii) Operational changes The calculation of the Federal renewable energy credits for incremental hydropower shall not be based on any operational change at the hydroelectric facility that is not directly associated with the efficiency improvements or capacity additions. (C) Indian land The Secretary shall issue 2 renewable energy credits for each new kilowatt hour of electric energy generated and supplied to the grid in a calendar year through the use of a renewable energy resource at an eligible facility located on Indian land. (D) Impacted communities The Secretary shall issue 2 renewable energy credits for each new kilowatt hour of electric energy generated and supplied to the grid in a calendar year through the use of a renewable energy resource at an eligible facility located in an impacted community. (E) Combination of renewable and nonrenewable energy resources If both a renewable energy resource and a nonrenewable energy resource are used to generate the electric energy, the Secretary shall issue the Federal renewable energy credits based on the proportion of the renewable energy resources used. (F) Compliance with State renewable portfolio standard programs Payments made by a retail electric supplier, directly or indirectly, to a State for compliance with a State renewable portfolio standard program, or for an alternative compliance mechanism, shall be valued at 1 credit per kilowatt hour for the purpose of subsection (b)(2) based on the quantity of electric energy generation from renewable resources that results from the payments. (f) Renewable energy credit trading (1) In general Except as provided in paragraph (2), a Federal renewable energy credit may be sold, transferred, or exchanged by the entity to whom the credit is issued or by any other entity that acquires the Federal renewable energy credit. (2) Limitation A Federal renewable energy credit may not be sold, transferred, or exchanged under paragraph (1) if the credit was issued to an