; (D) installation of equipment, service, and support; (E) operating the demonstration project for not less than the minimum period required to fully assess the results and objectives of the project, as determined by a peer-reviewed process; and (F) validation of technical, economic, and environmental assumptions and documentation of lessons learned. (4) Solicitation Not later than 90 days after the date of enactment of this Act, and annually thereafter, the Secretary shall conduct a national solicitation for applications for grants described in paragraph (1). (5) Organic photovoltaic cell technologies At least 1 grant awarded under paragraph (1) during fiscal year 2020 shall be for a project to demonstrate organic photovoltaic cell technologies. (d) Next generation solar energy manufacturing initiative (1) Grants In carrying out the program, the Secretary shall award multiyear grants to eligible entities for research, development, and demonstration projects to advance new solar energy manufacturing technologies and techniques, including to manufacture solar cells, hardware, and enabling devices. (2) Priority In awarding grants under paragraph (1), to the extent practicable, the Secretary shall— (A) follow the recommendations in the report described in paragraph (3)(B)(ii); and (B) give priority to solar energy manufacturing projects that— (i) reduce capital expenditures or provide lower-cost manufacturing options; (ii) eliminate manufacturing process steps; (iii) reduce energy, water, and material inputs; (iv) establish alternative supply chains for materials and components; (v) are located on land owned by Indian tribes; (vi) are located on land in economically distressed areas