The purpose of this paper is to describe a three-year limited-run offer of an energy science certificate in the University of Hawaii at Hilo campus, along with lessons learned that can be of use to other institutions considering comparable programs. Energy science is a loosely defined discipline that traditionally straddles physics and mechanical, electrical, and chemical engineering, and that can be offered based in any one or a combination of the above programs. Significant components in the life sciences and social sciences can be included as well. With the global trend to switch to clean or renewable energies, a significant number of job openings in this field is expected.