; (x) to the maximum extent practicable— (I) seek to use any relevant preexisting research and ongoing work; and (II) avoid duplication of effort; and (xi) conduct estimates for the 5-, 10-, and 15-year periods beginning on the date of enactment of the Flexible Grid Infrastructure Act of 2017 . (2) Reports Not later than 18 months after the date of enactment of the Flexible Grid Infrastructure Act of 2017 , and not less frequently than once every 3 years thereafter, the Commission and the Secretary shall submit to Congress a report describing the results of the most recent assessment under paragraph (1) that includes— (A) a description of the details required under clauses (i) through (xi) of paragraph (1)(B); (B) data reported and analyzed— (i) on a nationwide basis; (ii) on a State basis, for each of the several States of the United States; (iii) by sector; (iv) by balancing authority; and (v) to reflect— (I) granular locational characteristics, such as load pockets and grid congestion; (II) granular temporal characteristics, such as hourly and subhourly electricity generation costs and electricity network costs; and (III) the specific electric grid services identified by the study under section 3(b) of the Flexible Grid Infrastructure Act of 2017 ; (C) macroeconomic data, including an analysis of any effects on job creation, economywide costs and benefits, energy productivity, retail rate impacts, and gross domestic product; (D) a description of the methodology used to conduct the assessment described in paragraph (1); and (E) policy recommendations— (i) to achieve the estimated potential identified by the assessment under paragraph (1)(A); (ii) to promote the development of competitive markets for distributed energy resources assessed under paragraph (1)(B)(vi)(II)