Renewable Energy Engineers apply the theories of science and mathematics to solve practical technical problems. Careers in advanced energy include dozens of types of engineers - mechanical, electrical, structural, civil, environmental, etc.
Architects design and build structures such as power efficient homes and office buildings.
Chemists perform analytical and research work to develop things like synthetic fuels to power automobiles. Biochemists study the chemical composition of substances, some of which, such as animal wastes and plant materials, can be used as fuels to produce electricity. Physicists invent new energy applications. They conduct research into physical phenomena in order to describe, predict or explain the behavior of matter and energy. Economists compile, process and interpret economic and statistical data to create new energy applications, like solar power, affordable to large numbers of people.