; (2) Indian Tribes; (3) regional entities and regulators; (4) units of local government; (5) institutions of higher education; and (6) private sector entities. (d) Report Not later than 180 days after the date of the enactment of this Act, and annually thereafter until calendar year 2026, the Secretary shall submit to the Committee on Energy and Natural Resources of the Senate and the Committee on Energy and Commerce of the House of Representatives a report on the efforts to implement the program established under subsection (b)(1) and the status of the strategy developed under subsection (b)(2)(B). 6. Electric grid architecture, scenario development, and modeling (a) Grid architecture and scenario development (1) In general Subject to paragraph (2), the Secretary shall establish and facilitate a collaborative process to develop model grid architecture and a set of future scenarios for the electric grid to examine the impacts of different combinations of resources (including different quantities of distributed energy resources and large-scale, central generation) on the electric grid. (2) Market structure The grid architecture and scenarios developed under paragraph (1) shall account for differences in market structure, including an examination of the potential for stranded costs in each type of market structure. (3) Findings Based on the findings of grid architecture developed under paragraph (1), the Secretary shall— (A) determine whether any additional standards are necessary to ensure the interoperability of grid systems and associated communications networks