Dylan Hettinger
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View article: Life Cycle Assessment of Closed-Loop Pumped Storage Hydropower in the United States
Life Cycle Assessment of Closed-Loop Pumped Storage Hydropower in the United States Open
The United States has begun unprecedented efforts to decarbonize all sectors of the economy by 2050, requiring rapid deployment of variable renewable energy technologies and grid-scale energy storage. Pumped storage hydropower (PSH) is an …
View article: BSM Sensitivity Analysis and Meta-Modeling Next Steps [Slides]
BSM Sensitivity Analysis and Meta-Modeling Next Steps [Slides] Open
We performed a global sensitivity analysis of the Bioenergy Scenario Model (BSM), using Elementary Effects analysis to identify potentially influential factors, with a focus on sustainable aviation fuel (SAF) production. The process was it…
View article: Materials Used in U.S. Wind Energy Technologies: Quantities and Availability for Two Future Scenarios
Materials Used in U.S. Wind Energy Technologies: Quantities and Availability for Two Future Scenarios Open
Achieving a net zero emissions economy by 2050 will require at least a three-fold increase in the current rate of U.S. wind energy deployment. The increased demand for raw and processed materials needed to fulfill this goal could pose chal…
View article: Renewable Energy Materials Properties Database: Summary
Renewable Energy Materials Properties Database: Summary Open
Renewable energy is providing a growing share of electricity generation in the United States, with generation from utility scale wind and solar increasing by 12% and 29%, respectively, in 2020 (EIA 2021). Installation of new renewable ener…
View article: Battery Energy Storage Scenario Analyses Using the Lithium-Ion Battery Resource Assessment (LIBRA) Model
Battery Energy Storage Scenario Analyses Using the Lithium-Ion Battery Resource Assessment (LIBRA) Model Open
Meeting aggressive carbon emission goals will entail widespread deployment of renewable sources of electricity. Because these sources are variable, there is a need to develop scalable energy storage technologies. The U.S. Department of Ene…
View article: Methods for Representing Flexible, Energy-Constrained Technologies in Utility Planning Tools
Methods for Representing Flexible, Energy-Constrained Technologies in Utility Planning Tools Open
Capacity expansion models are widely used by power system researchers, planners, and policy analysts to evaluate alternative power system investment scenarios. With the increasing deployment of wind and solar in the US, there has been much…
View article: The Los Angeles 100% Renewable Energy Study (LA100): Chapter 10. Environmental Justice
The Los Angeles 100% Renewable Energy Study (LA100): Chapter 10. Environmental Justice Open
The City of Los Angeles has set ambitious goals to transform its electricity supply, aiming to achieve a 100% renewable energy power system by 2045, along with aggressive electrification targets for buildings and vehicles. To reach these g…
View article: An Overview of the Waste-to-Energy System Simulation (WESyS) Model
An Overview of the Waste-to-Energy System Simulation (WESyS) Model Open
The leveraging of waste streams for energy and chemical production could add revenue to waste disposal operations, and it presents opportunities for addressing a variety of economic and environmental objectives at the local, state, and nat…
View article: Adversarial super-resolution of climatological wind and solar data
Adversarial super-resolution of climatological wind and solar data Open
Significance Global climate simulations are typically unable to resolve wind and solar data at a resolution sufficient for renewable energy resource assessment in different climate scenarios. We introduce an adversarial deep learning appro…
View article: PHYGNN (Physics Guided Neural Networks)
PHYGNN (Physics Guided Neural Networks) Open
This implementation of a Physics Guided Neural Network (PHYGNN) augments a traditional neural network loss function with a generic term that can be used to guide the neural network to learn physical or theoretical constraints.
View article: Data-Driven Modeling of Spatially Explicit Air Pollutant Inventories for Agricultural and Forestry Feedstock Production
Data-Driven Modeling of Spatially Explicit Air Pollutant Inventories for Agricultural and Forestry Feedstock Production Open
As biomass feedstock production expands, air pollutants generated from feedstock supply chain activities may impact air quality and human health. The National Renewable Energy Laboratory's Feedstock Production Emissions to Air Model (FPEAM…
View article: The Demand-Side Grid (dsgrid) Model Documentation
The Demand-Side Grid (dsgrid) Model Documentation Open
Electrical load is the backdrop for all power systems analysis. As a coequal partner in the supply-demand balance that must be maintained on electrical grids at all times and for all timescales, load is a major source of variability and un…
View article: Evaluating the Impact of the 2017 Solar Eclipse on U.S. Western Interconnection Operations
Evaluating the Impact of the 2017 Solar Eclipse on U.S. Western Interconnection Operations Open
With support from the U.S. Department of Energy (DOE) Solar Energy Technologies Office (SETO), the National Renewable Energy Laboratory (NREL) partnered with Peak Reliability to evaluate the impact of the August 21, 2017 total solar eclips…
View article: Demand-Side Grid Model (dsgrid) Data from the Electrification Futures Project (EFS)
Demand-Side Grid Model (dsgrid) Data from the Electrification Futures Project (EFS) Open
This data set contains the full-resolution and state-level data described in the linked technical report (https://www.nrel.gov/docs/fy18osti/71492.pdf). It can be accessed with the NREL-dsgrid-legacy-efs-api, available on GitHub at https:/…
View article: An Improved Global Wind Resource Estimate for Integrated Assessment Models: Preprint
An Improved Global Wind Resource Estimate for Integrated Assessment Models: Preprint Open
This paper summarizes initial steps to improving the robustness and accuracy of global renewable resource and techno-economic assessments for use in integrated assessment models. We outline a method to construct country-level wind resource…
View article: 2016 Billion-Ton Report: Advancing Domestic Resources for a Thriving Bioeconomy, Volume 2: Environmental Sustainability Effects of Select Scenarios from Volume 1
2016 Billion-Ton Report: Advancing Domestic Resources for a Thriving Bioeconomy, Volume 2: Environmental Sustainability Effects of Select Scenarios from Volume 1 Open
With the goal of understanding environmental effects of a growing bioeconomy, the U.S. Department of Energy (DOE), national laboratories, and U.S. Forest Service research laboratories, together with academic and industry collaborators, und…
View article: Estimating Renewable Energy Economic Potential in the United States: Methodology and Initial Results
Estimating Renewable Energy Economic Potential in the United States: Methodology and Initial Results Open
The report describes a geospatial analysis method to estimate the economic potential of several renewable resources available for electricity generation in the United States. Economic potential, one measure of renewable generation potentia…
View article: Estimating Renewable Energy Economic Potential in the United States. Methodology and Initial Results
Estimating Renewable Energy Economic Potential in the United States. Methodology and Initial Results Open
This report describes a geospatial analysis method to estimate the economic potential of several renewable resources available for electricity generation in the United States. Economic potential, one measure of renewable generation potenti…