Emily Warren is an American chemical engineer who is a staff scientist at the National Renewable Energy Laboratory.

[1] Warren was an undergraduate student at Cornell University, where she studied chemical engineering and became aware of the energy industry.

[6] Warren joined the National Renewable Energy Laboratory in 2014, where she started working on electrochemical measurements of semiconductor materials.

[citation needed] Warren has worked on tandem solar cells, multi-layer devices that combine various photovoltaic materials of narrow and wide badgaps to form efficient multi-junction devices.

[8] Warren used computational modelling to demonstrate that a three-terminal device,[10] consisting of a top cell in series with an interdigitated back contact silicon cell with a conductive top contact, was more efficient than a two- or four-terminal device.