; and (C) develop a set of voluntary industry standards to maximize interoperability of electric grid components, systems, and technologies that meet the goals described in paragraph (2). (c) Authorization of appropriations There are authorized to be appropriated to the Secretary of Energy to carry out this section $5,000,000, to remain available until expended. (d) Definition In this section, the term Transmission Organization has the meaning given such term in section 3(29) of the Federal Power Act ( 16 U.S.C. 796 ). 206. Aggregator bidding into organized wholesale electric markets (a) In general Notwithstanding any prohibition established by a relevant electric retail regulatory authority with respect to who may bid into an organized wholesale electric market, each Transmission Organization shall, with respect to the organized wholesale electric market controlled by the Transmission Organization, allow any bid from an aggregator of retail customers that aggregates the demand flexibility of the customers of utilities that distributed more than 4 million megawatt-hours in the previous fiscal year. (b) Rulemaking Not later than 12 months after the date of enactment of this section, the Commission shall promulgate a final rule pursuant to subsection (a). (c) Definitions In this section: (1) Commission The term Commission means the Federal Energy Regulatory Commission. (2) Electric retail regulatory authority The term electric retail regulatory authority means an entity that establishes retail electricity prices and retail competition policies for customers. (3) Transmission Organization The term Transmission Organization has the meaning given such term in section 3 of the Federal Power Act ( 16 U.S.C. 796 ). 207. Expansion of community solar (a) Establishment of community solar consumer choice program (1) In general Not later than 12 months after the date of enactment of this Act, the Secretary shall establish a program to increase the opportunities for participation in community solar programs by— (A)