Nrl Meetings

4-2-2026

  • Paul Pinchuk and Travis William

    expect monthly meeting SAM bi-weekly meetings with paul and travis, also NG experts

  • newer hire

  • funding changes
    • research output

recognized need for maintenance and dev budget

200k a year for reV

  • money for feature requests

700k Natural gas new model

  • RE potential non-renewable fire generation model

technical work for foreign

  • moroccan utility

  • site specific tools

  • large broad analysis insights

electrical engineering terms

SAM - losses

land-use modeling may need to be more detailed

  • for natural gas models

global horizontal irraddiance

how natural gas fits in?

natural gas modeling

  • moving from regional-scale

  • where to start?

model framework

  • estimates deliverability thru pipeline

  • technical energy generation and cost potential data

  • downstream models deploy reV plants in market scenario modeling

    NLR power system models lack detailed spatial and temporal representaiton of NG delviery and generation

  • NEMS

    gas availability modeling

  • FINITO

    gas deliverability modeling

  • SAM needs electricy generation modules for natural gas

    • develop model framework

      • model design

    • scraping data we need

      bi-weekly meeting with NG subject matter experts

  • COMPASS

    land use and zoning information via LLms

4-6-2026

no specific agenda today

getting up to speed with project and lab

working with data centers a lot

GDS onboarding wiki

  • Timesheets
  • non-budgeted items

HPC user-accounts

  • getting admin status to HPC setup
    • allocation rev
      • Travis Williams
        • or Paul Pinchuk

weekly topics with Paul

  • good first issues

  • reV maintenance

  • brainstorm changes

    deadline for natural gas module

    • End of Next December and a release with SAM
      • economic outputs and energy generation

Professional Devleopment

  • data scientist
  • academic journal publications and technical reports
  • NRL trainings

Contribute to GDS when available

  • goldilocks zone in asking for help

Technical Potential

OIL AND GAS

  • Remaining resources in earth -> technically recoverable -> economically recoverable -> proven reserves

    • estimated volume (uncertain) -> extractable volume -> project tech costs -> competition with energy sources

      Delierable Potential

ReEDS uses balacing area or state level representation of gas-fired capacity

  • reV will simulate capacity at the plant level

  • technical flow rate based on more than the diameter???

    hitachi private natural gas data

Resource

  • will be represented as a combination of available gas supply and deliverable gas volumes
  • each potential power plant will have access to the deliverable capacity of tbe nearest service line

SAM will handle the system generation modeling

Public Utility Data Library

land use issue

  • lot more zoning restrictions
  • air quality and emissions
    • historical emissions
      • required to record on smokestacks

we'll start with a grid

  • maximum size of target plant
    • grid will line black linear area
      • each point associate dwith max amount of delvierable gas
        • will the set the capacity of the plant
        • capacity-reduced features

          • land use and emission

            specific zones from parcel data

            • parcel categories
              • for aggregation
          may work with munincipalities

4-9-2026

Tag up with Paul

  • physics background
    • mathematica
  • Java Course
  • PHD programming
    • python
      • c++

Prep notes

  • heavily invested in HDF5 and NLR specific toolings

  • python class visualization

  • software lifecycle and software architecture

  • better reV errors and custom exceptions

  • documentation and tutorials

reV prototype

  • iterative or incremental or evolutionary prototype
    • the final product is built on top of discarded prototypes
    • the final product evolves over prototypes without discarding
    • the final product is an integration of separate prototypes

vision

  • do it in pieces
  • iterate fast initially
  • prototype with plan to discard
  • iterative prototyping

custom reV exceptions

  • exception module (custom class)

    • very thorough

      idea

      • developing libraries
        • gaps
          • exceptions
            • custom errors, subclasses of @error
            • exceptions raised
              • they call run method and we give them domain-specific errors

replace ValueErrors with rev-specific errors

4-10-2026

Kestrel Tour

  • the filesystem can be slow,

    • 50 GB limit

  • 3 major partitions `kfs1/2/3`

  • kfs2 is most of stuff

    kfs2/datasets

    • RE national datasets
    • sup3rcc
      • downscale global circulation models
        • Grant B. Adversarial NN

kfs2/datasets/WIND

  • maps, select here in these coverage map

conus

  • h5 files
    • h5ls

projects

read README rev in HPC for organization of files

reV template in projects folder

environments

  • look around revruns and revreports

    `conda activate revruns/`

    • update and maintain envs

fastx instance

  • run qgis through qgis

QGIS run on the HPC better and faster

bash

  • little things to help

.bashrc

bm -l (good alias)

sq (for submitting via SLURM)

  • squeue

fy fiscal year

Nrel build uses hitachi velocity suite

Public build

/rev/projects

liberally use the README

use rev not reV

ssh-copy-id

add me into teams channel

4-13-2026

extensive presentation for natural gas

  • setup on project directory kestrel
  • (Renewable/Non-renewable) Energy potential modeling team

contextualize the goal of the project

  • develop a natural gas model which estimates gas fired genreation potential across landscapes

  • Maintain same spatial and temporal detail as ex

motivation

  • grwoth in electricity after low-growth period

  • mandate to model more generation tech

  • 20 yeras of increasing gas-fired energy consumption as coal falls

  • NG expected to be important to meet coming energy challenges

conceptual quandry

capacity expansion - important to know

  • full grid simulator
    • expansion models
      • take in supply curves for source material
      • much rougher supply curves for natural gas
    • each model represents a potential plant
      • sort of, typically operate on much broader regional level
      • they do aggregate stuff, but we can provide much more detailed inputs

how does this work with fossil fuels

  • low certainty point for potential resource
    • recoverability

deliverable potential

  • the amount of natural gas we can deliver

FINITO - gas deliverability modeling

  • provides state-level gas supply (AEO)
  • handles fuel conversion, transport, cross-sector fuel use
  • currently linked with ReEDS to handle interstate gas transport and gas demand

SAM

  • developing an initial set of NG generation modules for use in reV-gas
    • base combustion turbine model
    • base combined cycle model
  • system design will be based on a NETL baseline case
  • power cycle modeling will recreate dedicated chemical process models such as IPSEpro
  • SAM's NG models will be integrated directly into reV with existing mechanism

Cost and Performance Reading

Try to figure out what other siting constraints will require regulations on natural gas sites

eia NEMS - gas availability modeling

e.g. given field of potential site locations

  • reeds will take complete supply curve
    • and year-by-year

COMPASS

  • collect a bunch of data at a large scale for a bunch of unstructured documents

ReEDS

  • main datastream recipients of our reV outputs
  • currently uses regional supply curves from EIA'S AEO to present natural gas supply and demand

seasonally derating

Scenario Analysis Interface for Energy Systems

  • linking relationships between gas supply and generation

NLR BlendPath

  • pipeline delivery simulation
  • hydrogen-natural gas blending

SSH MORE TOUR OF KESTREL

  • always get an allocation name for project

  • allocation units

    • maybe use sinfo for more info great if we can get managed way to see these units

      check the lex site

  • salloc

  • sbatch

    –partition=debug FASTER QUEUE

  • sinfo

  • snodes

revgas

kfs2/projects/rev/projects/oe/fy26/revgas

  • excel needs data cleaning

    • potential value for useful information

  • access the eia API

    THIS would be great to have added

    • state-by-state natural gas output

  • sam will handle a lot of power generation stuff

    • dont worry about it for now

centralize revruns module to some package

  • PATHS is just a list of package data

Public utility data lbirary*

  • anything after 2006
    • will have some emissions monitoring
      • CEMS
        • tracks emissions and power generation
  • different forms give you regulatory forms and commisions
    • useful for land use constraints
  • requestor pays s3 bucket

PUDL would be cool to build out an extension

  • GEMs has a flow rate data
  • Velocity suite is good truth source and for generally how big they are and where they are

Missing gaps between these two data sources

  • super local sources
    • and utility data sets
  • flow rate is probably really complex
    • lots of covariates in that model

exploration is warranted but dont spend too much time

STAC implements a substitute for file organization

  • future task, not a priority

4-16-2026

BlendPath, reV, and RNG supply curves

  • region-to-region pipeline data

Kevin Topolski - blendpath

  • evaluating reutilization natural gas pipelines for transporation
  • developing techno economic model
    • hydraulic simulation
  • assessing the cost of model without hydraulic modeling

Jamie Kee - blendpath

  • good for developing code on blendpath

Burcin Erdener - ReEDs Omar Fernandez- ReEDS

  • techno economic analysis
  • gas availability space

Alex Badgett

  • strategic analysis cetner
  • integration of fuel gas into energy sector
    • mostly hydrogren
  • natural gas supply curve characterization
    • back in 2017 , organic wet waste materials
    • CO2 resource data, RNG mapping Anelia Millbrandt

Jesse Cruce

  • leading lab-funded PNA effort
    • coordinate NLR seed center how they do fuel gas modeling
    • missing data…

lack of public data

  • GEMS
    • has big gaps in data

OGM - very detailed for texas , but rest of the country is lacking in the same detail

  • discontinued datasets :(

we'd prefer a built-in gas network

geometries are in the EIA database

  • just gonna see the diameter

EIA dataset is potentially better

spatial attributes

  • distance to physical infratructure

blendpath considers mainly pipeline design

  • approximate flows from segments to various power plants
    • populating these flow…
      • its tricky, were supply side model
        • were not competing different locations for different sectors
  • we get max possible generation
    • flow is split across multiple users and consumers

pipeline delivery flow rates

BlendPath and reV

  • runnning entirly new transmission
    • wht happens to capacity and supply curve
  • little more geographic modeling

blendpath at a high level

  • given a existing pipeline network

    • what modification could be made to adhere to pressure boundaries, composition changes, velocity boundaries, deamand changes, etc.

    • includes visualization, hydraulic modeling, financial anaylsis of pipeline networks

  • built-in module model network hydraulics

  • uses redlich-….

    modifcation methods

    • BlendPath can make modifications to the network
      • performed on segment-by-segment basis
        • identifies lowest level of cost

new pipeline requires

  • tarnsport length
    • offtake locations and magnitude
      • supply pressure
        • composition
  • determines the lowest LCOT network design
    • explore diameters, steel grades, thickness, numbers of compressors
    • satisfy pressure, velocity, and compression ratio constraints
  • LCOT includes
    • pipe costs, compressor costs, fuel costs, ILI, meters, valves, taxes, financing

HiBlend is the concertium and BLendPath is the program

  • repurpose existing pipelines for hydrogen
    • material compatibility
    • technical economic anaylsis
    • lifecycle analysis

Independent national scale pipeline network

  • understand linkages of national scale pipleine
  • throughput of that pipeline
  • what degree of representation we could follow?
    • consultants did input and output basis for tracking that does not account for hydraulics
  • if you add the load then pressure drop wont exceed thresholds for downstream users
  • national transmission planning study
    • transmission lines and line capacities

GDS SUPPORT of this

  • some assumptions for distributed loads
    • if a new load is added to existing network
      • we can measure downstream pressure from new load
  • topologies, flow rates (dynamic demand)
    • assess pressures

build a composite dataset of as much data we can find

  • transport length
    • offtake locations and magnitude
      • supply pressure
        • composition

4-20-2026

GUIDANCE ON REVGAS PROTOTYPE

  • choosing what modules to translate over to revgas

    • SAM module

  • pull in supporting modules

    • supply curve, etc.

  • supply curve requires exclusion files

  • pysam needs special h5 format

    • pulls incilliary data adjusting resource

  • getting subsets of test data in a test folder

    • TESTDATADIR
    • copy over to revgas

  • pull in land use components first

    • much more bespoke

  • prioritizing data input wrappers

    • pipeline data
    • input supply for NEMS
    • EIA
    • AEO
    • PUDL
    • Hitachi Velocity
    • Woods Mckenzie
      • LENS

PULL ANYTHING IN FOR NATURAL GAS

PAULS FEEDBACK on tutorials for analysts

  • tutorials are useful going forward

rev-tutorial

  • python cli

  • tutorial for the API itself if it gets funded

  • start with tutorial 2

catch windows errors as you are working

  • write PRs for rev
  • just push to tutorials

IT ticket for SAM GUI

4-21-2026

GDS monthly group meeting

gradient-boosted regression testing

human impacts on energy systems

distributed energy sources power restoration scenario

hurricane data

flooding data

  • flood boundaries impacting road network

water and fuel pipelines are not considered

backup grid generation is very complex to consider

continue to expand to figure out what the consequences are

synthetic populace data

  • impacts that people may not have access to services

real human impacts of the work

  • measure of peoples ability to access services they need
    • measure it in bluesky normal conditions
    • measure how it changes in outage scenario
  • were measuring an increase from your baseline
    • the burden that you are facing to access these services increases

based on FEMA lifelies…

amount of food in your grocery store

amount of beds in your hospital

what the resolution your're modeling outages on ?

  • feeder level or circuit level?
    • feeder level
      • how granular the utlity data gets

how do you simulate what goes and when it goes out given the data

  • were parterned with researchers in the gradi planning and analysis center
    • they have hazard models and overlay with fidelity
  • Stochastic or determinisrtic simulations of a given ….

whats the temporal modeling component behind each of these

  • were showing every timestamp during restoration process
    • it is continuous
  • cyber scenarios
    • 3 scenarios
      • switch 2-3 hours
      • brick 2-3 days
      • obscure need for assessment

4-23-2026

IT TICKET FOR SAM GUI

IT TICKET FOR ADMIN

4-27-2026

  • new task numbers for timesheet

    • GDOP.12495.61.01.02

  • inputs will look different

    • temperature air pressure, etc from original resource data

    • what envisioned for dispatchability?

      • stick w/ technical potential

Travis

  • build out data access methods

  • look at the tutorial (analyst pov)

  • conceptualize high-level concepts

    notesbooks in rev folder is dev-focused, while rev-tutorials is analyst-focused

Annual Technology Baseline (ATB)

  • bigger public project put out
  • every year we have a list of new technologies
  • we get a projection for a technology scenarios
    • specific iterations of tech

      • price, costs, performances,

        … it is out of date

        • costs are skyrocketed
        • issues with 2025 releas

        capacity is different from energy

4-30-2026

subclassing for natural gas

useful routine and acquire data into kestrel

revX

  • data handling utilities
  • formal module for natural gas resource will happen

Get the download process done

  • then figure out how to shape it.

use dedicated node

5-2-2026

reV Profile Metric,PUDL / Data Source,Table/Field Hourly Dispatch,EPA CEMS,hourlyemissionsepacems / grossloadmw Ramp Constraints,EPA CEMS,Hourly Δ in grossloadmw Emissions Intensity,EPA CEMS,noxmasslbs / heatcontentmmbtu Unit Efficiency,EIA 923,fuelconsumedmmbtu vs netgenerationmwh

  • EIA Form 923 (Generation and Fuel)
    • While CEMS is hourly, EIA-923 provides the "ground truth" for fuel consumption and net generation at a monthly level. It is useful for cross-referencing CEMS data, which measures gross load.
      • Net vs. Gross:
        • Use the netgenerationmwh field to calculate the parasitic load of the plants, allowing you to tune your reV generation profiles to reflect what actually hits the grid.
      • Heat Rates:
        • You can derive operational heat rates (\(MMBtu/MWh\)) using the fuel consumption data. This helps validate the efficiency assumptions of the natural gas "supply" you are modeling.
  • EIA Form 860 (Plant & Generator Inventory) To associate your supply curve points with specific technologies, EIA-860 provides the metadata.
    • Prime Movers: Differentiate between "CA" (Combined Cycle Steam Part), "CT" (Combined Cycle Combustion Turbine), and "GT" (Gas Combustion Turbine).
    • Operational Constraints: Data on nameplate capacity and status (existing vs. retired) allows you to filter your validation set to only include modern, high-efficiency plants that reflect current natural gas potential.

Meeting notes

talking about inputs and outputs

  • supply curve from NEMS and AEO
    • distribution gas centers with FINITO

problems with ATB

  • much higher cost per KWh
  • evaporative cooling?
    • what is most common and real-life and what does atb represent
      • makes distinctions on frame of turbine
        • how many turbines in cycle
          • ccs?

water impacts are missing

  • water avaiability for decision on cooling method

more used to ambient conditions

  • pressure, temperature, humidity, etc.

we'll look into hooking up NSRDB

types of outputs (addressing shortcomings)

  • part-load output or

    • maximum load output

  • dispatchability

    • model max energy possible

  • system defintion

    • 500 Mwh turbine

      • geographic varability

        • we pick one and model it everywhre
        • and we consider how far it is from service line

  • duct-burning? (need to be tasked)

    • for model runs

  • for combution and combine cycle

    • duct burning and etc.

      • we want to exhaust these supplies

  • let reV batch all these process selection and allow ReEDS and others for optimization and fine-tuning

  • can we place holder the duct burning efficiecny scaling? (For now)

BIG OPP FOR ADDITIONAL FUNDING FOR DATA CENTER STAKEHOLDERS

focus on coherent tools that can be extensible and cross-functional

what would industry expect us to do?

  • range of configs
    • one that arent there are future work

5-7-2026

SAM inputs for generation

  • transmission(o&g) is configured into SAM Generation
    • may define new config for rev generation

high proritiy

  • kestrel dagster job
    • document data dict and dagster assets

5-14-2026

  • just focus on parquet now after trailblazing to a hdf5 solution

  • finish documenting FORMs and IRREGULARITIES

5-18-2026

200k allocated in reV and 250k allocated for SAM

model - sushmita

data - jackson

technical report -

What we are lacking expertise

  • cherokee generating station

    • operations side
      • helps integrate with downstream model
    • curious about the development building side

  • systematic way

    • dataset sources pointed out for supported items

      • used for validation

      • identify clearly the big parts

        • critical missing parts
        • addressing operating space
        • track legal documents

excel sheet for specification of dataset sources

  • local run for ease of use

industry engagement

  • systematic approach for interspersing collection of information
    • fairly informal
      • standardized questions for customer discovery
      • this group of people are saying this
        • for a balanced approach for contract development process
    • lets get started with this…
      • focus on budget effect
  • Document datasets of what we have
    • how to access
    • …

INGAA - representing interstate natural gas companies

  • this would be

NEMS - make some questions for them for RESOURCE AVAILABILITY

how down we DOWNSCALE state-level to site-level

  • carrying capacity for natural gas supply

incoporate factors that encourage competitiveness based on geographic and regionalized variables

  • e.g. pricing state-to-state

  • keep gas very cheap

  • keep the rise in growth very high

    • gas type generator changing
      • need more reliability

how flexible will sam be?

—

pipeline flow and costs (hold off for burcin)

proximity of plant capacities, flow rate

  • GIS workflow

    • QGIS ready analysis
    • rev-rev
      • capacity is determined by amount of avaialble area
        • wind is more complex
    • rev-gas
      • size and or type of a plant
      • proximitiy to a pipeline
        • correlate these distances
          • THOROUGH pipeline diameter from Hitachi

    starting with Texas

    • MAXIMUM amount of capacity at an area

    better spatial representation is what we want in non-renewable energy sector

    AEO already has the gas availability supplied

5-19-2026

GDS monthly meeting

JianYu managing portfolio on supply curve work on solar and beyond

  • recent proposal developments on remote sensing

Hannah organized cherokeee generation tour

  • walked through plant and discussing coal and natural gas

Travis managing and on the forefront for revgas

  • navigating and harmonizing the this project

Billy Roberts

  • killing the map game

Alexi working under Evan and Victor

  • started yesterday
    • masters thesis in hydrology
      • groundwater and subsurface
    • hydro pump storage portfolio

AWS funding 1 mil

  • for reVeal

Agile Framework

Hitachi Energy Velocity Suite

  • natural gas
    • 2 seats
  • additional modules and data licensing
    • they should budge ?