Energy Efficiency Analyst II ($63,860 - $79,830): Must possess a working knowledge of business principles and theory at a level normally acquired through the completion of a four-year degree in accounting, business, finance, economics, building science, engineering, or related field; and. Energy Efficiency Analyst I ($57,110 - $71,390): Must possess a working knowledge of business principles and theory at a level normally acquired through the completion of a four-year degree in accounting, business, finance, economics, building science, engineering, or related field.