; and (D) a plan for leveraging existing market product offerings. (d) Authorization of appropriations (1) In general There are authorized to be appropriated to carry out this section— (A) for projects relating to light-duty consumer vehicles, $20,000,000; and (B) for projects relating to fleet and municipal vehicles and transit vehicles, $20,000,000. (2) Availability Amounts made available under paragraph (1) shall remain available for a period of 10 years following the fiscal year for which the amounts were appropriated. 6. Granular retail electricity pricing grant program (a) Definitions In this section: (1) Eligible entity The term eligible entity means an electric utility, such as— (A) an investor-owned electric utility; (B) a publicly owned utility; and (C) an electric cooperative. (2) Program The term program means the granular retail electricity pricing grant program established under subsection (b)(1). (b) Establishment (1) In general The Secretary shall establish a program under which the Secretary shall provide grants to support projects described in subsection (d) for the voluntary deployment of granular retail electricity pricing, with the goal of producing more efficient economic signals for transactions conducted on the electric grid. (2) Requirement In developing the program, the Secretary shall take into consideration lessons learned from granular electricity pricing demonstration and pilot projects, if any. (c) Application and selection (1) In general To be eligible to receive a grant under the program, an eligible entity shall submit to the Secretary an application at such time, in such manner, and containing such information as the Secretary determines to be appropriate, including— (A) a description of the granular pricing mechanisms to be implemented; (B) a description of any enabling technology proposed to be used by the eligible entity, which shall include, at a minimum, advanced metering infrastructure