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Staff Directory

Dr. Fadl Saadi

Dr. Fadl Saadi currently serves as an ARPA-E Fellow, with interests in renewable fuels and transportation, advanced materials for energy storage, and building efficiency.

ARPA-E Program Director Rachel Slaybaugh

Dr. Rachel Slaybaugh currently serves as a Program Director at the Advanced Research Projects Agency-Energy (ARPA-E). Her focus at ARPA-E includes a wide range of technologies to enable advanced nuclear reactor systems. 

Betsy Snell

Betsy Snell currently serves as a Contract Specialist at the Advanced Research Projects Agency-Energy (ARPA-E). Snell performs full lifecycle administration of financial assistance awards. 

Dr. Grigorii Soloveichik, Program Director, Advanced Research Projects Agency-Energy (ARPA-E)

Dr. Grigorii Soloveichik currently serves as a Program Director at the Advanced Research Projects Agency-Energy (ARPA-E). His focus at ARPA-E includes developing electrochemical processes and advanced materials for energy storage and conversion.

ARPA-E Contracting Specialist Renee Sperling

Renee Sperling currently serves as a Contract Specialist at the Advanced Research Projects Agency - Energy (ARPA-E). Sperling performs cradle-to-grave administration of a variety of financial assistance and acquisition awards. Prior to ARPA-E, Sperling provided grants administration and data analysis for Bush-Clinton Katrina Fund and United Nations Foundation.

Dr. Addison Killean Stark, ARPA-E Fellow

Dr. Addison Killean Stark currently serves as an ARPA-E Fellow focusing on advanced thermochemical conversion to fuels and chemicals, energy innovation in agricultural systems, and intensification of energy conversion reactor designs.

David Tew Headshot

Dr. David Tew currently serves as a Program Director at the Advanced Research Projects Agency – Energy (ARPA-E). His focus at ARPA-E includes combined heat and power systems, industrial processes, and transportation energy efficiency.

ARPA-E Senior Commercialization Advisor John Tuttle

Dr. John Tuttle is a Senior Commercialization Advisor at the Advanced Research Projects Agency-Energy (ARPA-E). He assists ARPA-E's Technology-to-Market effort, which focuses on preparing breakthrough energy technologies for the transition from lab to market.

ARPA-E Program Director Marc von Keitz

Dr. Marc von Keitz currently serves as a Program Director at the Advanced Research Projects Agency-Energy (ARPA-E). His focus at ARPA-E includes biological energy conversion processes, sustainable biomass production and utilization, as well as energy-efficiency.

Donna C. Williams

Donna C. Williams currently serves as a Contracting Officer at the Advanced Research Projects Agency – Energy (ARPA-E). As a Contracting Officer, Williams is responsible for the award and administration of financial assistance contracts in accordance with federal laws and regulations. Prior to ARPA-E, Williams served as a Contracting Officer/Team Leader within the U. S. Department of Energy’s Office of Headquarters Procurement Services.

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