Solar energy cells on the market today are more efficient than a decade ago, but the current level of cells’ efficiency in converting energy from the Sun into electricity is being significantly exceeded by a new cell developed by Zachary Holman, a Fulton Schools associate professor of electrical, computer and energy engineering, and his research collaborators. Chris Jones, an ASU associate professor of history and an expert in the history of the world’s energy transitions, says the progress by Holman and his colleagues definitely qualifies a big leap in energy technology advancement.