PNNL

Stephanie DiRaddo joined Pacific Northwest National Laboratory in 2024 as an Earth scientist. She is a geoscientist focused on CO₂ sequestration and Environmental Protection Agency Class VI permitting, with 12 years of subsurface experience specializing in geocellular modeling, reservoir characterization, and large-scale field development. DiRaddo spent her early career focused on hydrocarbon exploration with SLB (formerly Schlumberger). Over the past 5 years, she has worked with industry partners to evaluate over 50 sites across the U.S. and abroad for geologic carbon storage feasibility. Most recently, she managed large-scale commercial field development of several CO₂ sequestration sites in the Midwest. She is originally from Pennsylvania, where she received her B.S. in geobiology (everything from geomicrobiology to vertebrate paleontology) at The Pennsylvania State University.

• CO₂ Mineralization
• Geologic Carbon Storage
• UIC Class VI Permitting
• Monitoring, Measurement, Verification
• Geocellular Modeling
• Reservoir Engineering
• Reservoir Characterization
• Large-Scale Field Development

• Carbon Sequestration
• Collaborative Project Management
• Community Engagement
• Geology
• Qualitative and Quantitative Research Methodologies
• Regulatory Compliance
• Regulatory Guidelines
• Regulatory Permitting
• Structural Geology

• BS, Geosciences, The Pennsylvania State University

Find Ms. DiRaddo’s publications on her OrcID: https://orcid.org/0009-0003-5105-4957

2024

• Kreuzer R.L., M.L. Rockhold, C.A. Duberstein, X. He, S.G. DiRaddo, T. Steeves, and S. Simmons. 2024. "Hot Springs and Geysers: Exploring Historical and Modern Impacts of Geothermal Energy Production on Associated Natural Surface Systems and Standardizing Management Practices." In Transactions - Geothermal Resources Council: Geothermal Rising Conference: Using the Earth to Save the Earth, (GRC 2024), October 27-30, 2024, Waikoloa, HI, 48, 2731 - 2744. Palm Springs, California:Geothermal Resources Council. PNNL-SA-202954.