Skip to main content

Data Analysis and Visualization Group

The following includes summary bios of staff expertise and interests in analysis relating to geospatial analytics and integrated resource assessment; our energy efficiency and renewable energy data warehouse; advanced visualization; and market enabling applications.

Acting Team Lead: David Mooney
Administrative Support: Elizabeth Torres

Photo of Michael Bahl.

Michael Bahl

Senior Research Engineer

Areas of expertise

  • Software development and architecture of enterprise solutions
  • Process improvement and guidance
  • Scrum Master

Primary research interests

  • Analysis and management of large data sets

More information on Michael Bahl

Photo of Debbie Brodt-Giles.

Debbie Brodt-Giles

Digital Assets Supervisor

Areas of expertise

  • Advanced transportation and alternative fuels
  • Information resources
  • Data management and visualization
  • Online tools

Primary research interests

  • Open energy data
  • International energy data connections and participation
  • Semantic Web technologies
  • Smart Grid analysis and technologies
  • Website design and usability

More information on Debbie Brodt-Giles

Photo of Trish Cozart.

Trish Cozart

Senior Web Project Leader

Areas of expertise

  • Web strategy
  • Web analytics and impact metrics
  • User interface design
  • User experience
  • Project management

Primary research interests

  • Web and program impact metrics
  • Data visualizations and story mapping of historical data

More information on Trish Cozart

Photo of Jon Duckworth.

Jon Duckworth

Scientist II - GIS

Areas of expertise

  • Web Interface Development
  • Spatiotemporal Data Visualization

Primary research interests

  • Client– & server-side JavaScript programming
  • Interactive data visualization

More information on Jon Duckworth

Pamela Gray-Hann

Project Support Specialist

Areas of expertise

  • Internet map server applications
  • GIS web page
  • PVWatts®
  • Outreach

More information on Pamela Gray-Hann

Nick Grue

Scientist II - GIS

Areas of expertise

  • Geospatial analysis
  • Web GIS

Primary research interests

  • Open source energy data
  • Web visualization of energy data
  • Renewable energy policy

More information on Nick Grue

David Harrison

Software Engineer

Areas of expertise

  • Data design and database administration
  • Custom software solutions
  • Full systems development life cycle

Primary research interests

  • Oracle and PostgreSQL database management
  • Open source NoSQL implementations
  • Geographic data design, maintenance, and analysis

More information on David Harrison

Photo of Donna Heimiller.

Donna Heimiller

Senior GIS Analyst

Areas of expertise

  • Geospatial analysis and modeling supporting multiple resource assessment technologies, regional-scale site evaluation, and energy system modeling
  • Electricity infrastructure analysis
  • Data visualization

Primary research interests

  • Renewable resource development opportunities and issues, within a spatial context (multiple technologies)
  • Renewable resource characterization (multiple technologies)

More information on Donna Heimiller

Photo of Dylan Hettinger.

Dylan Hettinger

GIS Programmer Analyst

Areas of expertise

  • Information design
  • Spatial analysis and cartography

More information on Dylan Hettinger


Photo of Jay Huggins.

Jay Huggins

Web Developer

Areas of expertise

  • OpenEI
  • Multi-language coder (Perl, PHP, JavaScript, Java, Python)
  • MySQL, Apache, Bash

Primary research interests

  • LAMP web development and data manipulation
  • Optimization and automation
  • Human-powered renewable energy sources
  • Electronic design

More information on Jay Huggins

Photo of John Krueger.

John Krueger

Web Developer

Areas of expertise

  • UX/UI Web development
  • Front end data visualization
  • Javascript
  • Ruby

More information on John Krueger

Ted Kwasnik

Scientist II

Areas of expertise

  • Architecture/Implementation of GIS Applications
  • Open Source Programming and Web Development
  • Spatial Analysis and Cartography

More information on Ted Kwasnik

Photo of Nick Langle.

Nick Langle

Front End Web Engineer

Areas of expertise

  • HTML / CSS / Javascript / jQuery
  • UI / UX
  • Responsive Web Design
  • Semantic MediaWiki
  • SEO

Primary research interests

  • Web Design & Usability
  • Data Visualization & Analytics
  • Geospatial Analysis
  • Transportation & Alternative Fuels
  • Industrial Ecology
  • Renewable Energy Regulation & Permitting

More information on Nick Langle

Photo of Anthony Lopez.

Anthony Lopez

Scientist IV - GIS

Areas of expertise

  • Spatial Database Design and Utilization
  • High Performance Computing
  • Parallel Processing and Analysis of Large Geospatial Datasets
  • Visualization of Complex Spatial-Temporal Datasets
  • Renewable Resource Technical and Economic Potential
  • Advanced Cartographic Product Design

Primary research interests

  • Solar resource assessment
  • Conversion of raw geographic renewable resource datasets to technical potential estimations
  • Global renewable resource datasets and analysis
  • Renewable resource characterization

More information on Anthony Lopez

Photo of Galen Maclaurin.

Galen Maclaurin

Scientist III

Areas of expertise

  • Spatial and temporal modeling
  • Remote sensing image analysis
  • Spatial statistics & machine learning
  • Scientific programming

Primary research interests

  • Modeling energy use at multiple spatial scales
  • Information extraction from remote sensing imagery
  • Small area estimation and spatial aggregation
  • Modeling population dynamics and urban growth

More information on Galen Maclaurin

Photo of Meghan Mooney.

Meghan Mooney

GIS Scientist II

Areas of expertise

  • Spatial Analysis
  • Statistics
  • Cartography
  • Transportation/mobility

Primary research interests

  • Transportation and alternative fuels
  • Mobility and behavioral dimensions of climate change
  • VGI and mixed methods GIS

More information on Meghan Mooney

Photo of Ricardo Oliveira.

Ricardo Oliveira

Scientist II

Areas of expertise

  • Web Development
  • Spatial Databases
  • Spatial Programming

Primary research interests

  • Transportation
  • Data Visualization

More information on Ricardo Oliveira

Photo of Heidi Pawlowski.

Heidi Pawlowski

Quality Assurance and Process Implementation

Areas of expertise

  • Quality assurance
  • Project management
  • Program development
  • Technical support and training

Primary research interests

  • Quality assurance automation
  • Web development
  • User interface design
  • Process development
  • Project management

More information on Heidi Pawlowski

Photo of Matt Rahill.

Matt Rahill

Web Developer

Areas of expertise

  • Web development (Ruby on Rails, JavaScript, jQuery, HTML, CSS)
  • User interface design
  • Writing and editing
  • Project management

Primary research interests

  • Alternative transportation

More information on Matt Rahill

Photo of Billy Roberts.

Billy J. Roberts

Scientist III - GIS

Areas of expertise

  • Spatial analysis and cartography

Primary research interests

  • Renewable energy and cartographic technique
  • Wildlife and energy technology interactions
  • Geothermal technology

More information on Billy J. Roberts

Photo of Chris Webber.

Chris Webber

Chief Cloud Architect

Areas of expertise

  • Cloud computing
  • Unix (Linux, Solaris, Mac OS X)
  • Virtualization
  • System security

Primary research interests

  • Cloud infrastructure
  • Automated provisioning
  • System monitoring

More information on Chris Webber

Photo of Jon Weers.

Jon Weers

Senior Web Applications Engineer

Areas of expertise

  • Interactive web applications (PHP, jQuery, javascript, Python, Mongo, MySQL)
  • Custom visualizations
  • Project management
  • User interface design

Primary research interests

  • Engaging mass audiences to promote renewable energy awareness
  • Leveraging linked open data
  • Open source projects

More information on Jon Weers

If you have questions about our programs or would like to contact our staff, please email the Webmaster.