Jeremy Twitchell
Senior Energy Analyst at Pacific Northwest National Laboratory - PNNL
Richland, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolJeremy Twitchell is a Senior Energy Analyst with a decade of experience blending technical building-energy modeling, regulatory policy, and grid modernization research. Based at PNNL, he investigates regulatory barriers to energy storage and provides objective technical assistance to states while contributing to distribution planning and modernization efforts. His practical engineering chops include backend contributions to the widely used EnergyPlus whole-building simulator—work that touched airflow modeling, chiller performance, and validation tests—bridging open-source simulation development with policy-focused research. Earlier roles at the Washington Utilities and Transportation Commission and in journalism honed his ability to translate complex technical and regulatory issues into clear guidance for decision makers.
10 years of coding experience
Master of Public Service and Administration, Energy, Natural Resource and Technology Policy Concentration, Master of Public Service and Administration, Energy, Natural Resource and Technology Policy Concentration at Texas A&M UniversityB.A., Communications, Print journalism, B.A., Communications, Print journalism at Brigham Young University
Spanish
Github Skills (6)
model-validation10
c-language10
cprogramming-language10
unit-testing9
numerical-methods8
performance-optimization8
Programming languages (7)
Github contributions (5)
NatLabRockies/EnergyPlus
Sep 2017 - Jan 2023
EnergyPlus™ is a whole building energy simulation program that engineers, architects, and researchers use to model both energy consumption and water use in buildings.
Role in this project:
Backend Developer
Backend DeveloperContributions:1 release, 179 reviews, 172 commits in 5 years 5 months
Contributions summary:Jeremy's contributions primarily involved modifying and adding to the core codebase, specifically within the `EnergyPlus` project, a building energy simulation program. The commits demonstrate work on the `AirflowNetworkBalanceManager`, suggesting development related to air flow modeling. Additionally, the user added unit tests for IPLV calculations and adjusted the IPLV calculation, indicating an involvement in model validation and optimization. Moreover, modifications to multiple files including `StandardRatings.cc`, `ChillerElectricEIR.cc` and related files demonstrate enhancements to energy performance calculations.
energyplussimulation
pnnl/building-energy-standards-data
Oct 2023 - Jun 2026
Database of building energy standards data for building energy simulation
Contributions:12 releases, 87 reviews, 149 PRs in 2 years 8 months
databasesimulationenergy
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