; (B) understanding the technical and economic characteristics of energy storage or microgrid projects; (C) understanding financing alternatives; (D) permitting and siting issues; (E) obtaining case studies of similar and successful energy storage or microgrid projects; (F) reviewing and obtaining computer software for assessment, design, and operation and maintenance of energy storage or microgrid systems; and (G) understanding and utilizing the reliability and resiliency benefits of energy storage and microgrid projects. (2) External contracts In carrying out subsection (a)(2), the Secretary may enter into contracts with third-party experts, including engineering, finance, and insurance experts, to provide technical assistance to eligible entities relating to the activities described in subparagraphs (A) through (G) of paragraph (1), or other relevant activities, as determined by the Secretary. 4. Authorization of appropriations (a) In general There is authorized to be appropriated to carry out this Act $5,000,000 for each of fiscal years 2020 through 2025. (b) Administrative costs Not more than 5 percent of the amount appropriated under subsection (a) for each fiscal year shall be used for administrative expenses.