Biofuels from Solar Energy and Bacteria

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Amherst, Massachusetts
Project Term:
07/01/2010 - 06/30/2014

Technology Description:

The University of Massachusetts at Amherst (UMass Amherst) is feeding renewable electricity to bacteria to provide the microorganisms with the energy they need to turn carbon dioxide (CO2) directly into liquid fuels. UMass Amherst's energy-to-fuels conversion process is anticipated to be more efficient than current biofuels approaches in part because this process will leverage the high efficiency of photovoltaics to convert solar energy into electricity. UMass Amherst is using bacteria already known to produce biofuel from electric current and CO2 and working to increase the amount of electric current those microorganisms will accept and use for biofuels production. In collaboration with scientists at University of California, San Diego, the UMass Amherst team is also investigating the use of hydrogen sulfide as a source of energy to power biofuel production.

Potential Impact:

If successful, UMass Amherst would create a liquid transportation fuel that is cost competitive with traditional gasoline-based fuels and 10 times more efficient than existing biofuels.


Cost-competitive electrofuels would help reduce U.S. dependence on imported oil and increase the nation's energy security.


Widespread use of electrofuels would help limit greenhouse gas emissions and reduce demands for land, water, and fertilizer traditionally required to produce biofuels.


A domestic electrofuels industry could contribute tens of billions of dollars to the nation's economy. Widespread use of electrofuels could also help stabilize gasoline prices—saving drivers money at the pump.


ARPA-E Program Director:
Dr. Ramon Gonzalez
Project Contact:
Dr. Derek Lovley
Press and General Inquiries Email:
Project Contact Email:


University of Massachusetts, Amherst
University of California, San Diego

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