(1) Title 90, chapter 4, part 1, MCA, provides grant and loan funding through the department to stimulate research, development, demonstration, and commercialization of renewable energy sources.   The policy and purpose of this subchapter are to provide criteria and guidelines to aid in implementing the law; to prescribe the form and content of applications; to provide policies and procedures for the preparation, evaluation and administration of those applications; to prescribe the terms and conditions for making grants and loans; and to establish interest charges for loans.