The Secretary shall promptly establish, develop, acquire, and maintain a central source of information on all energy resources and technology in furtherance of the research, development, and demonstration mission carried out directly or indirectly under this chapter. When the Secretary determines that such information is needed to carry out the purposes of this chapter, the Secretary may acquire proprietary and other information (a) by purchase through negotiation or by donation from any person, or (b) from another Federal agency. The information maintained by the Secretary shall be made available to the public, subject