National Renewable Energy Laboratory

api-umbrella

Open source API management platform

EnergyPlus

EnergyPlus™ is a whole building energy simulation program that engineers, architects, and researchers use to model both energy consumption and water use in buildings.

SAM

System Advisor Model (SAM)

resstock

Highly granular modeling of residential building stocks at national, regional, and local scales using OpenStudio/EnergyPlus.

openstudio-standards

ssc

SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM

sup3r

The Super-Resolution for Renewable Resource Data (sup3r) software uses generative adversarial networks to create synthetic high-resolution wind and solar spatiotemporal data from coarse low-resolution inputs.

wex

WEX, which is short for WxWidgets Extensions, is a cross-platform library of graphical user interface tools that extends the popular open-source project WxWidgets. WEX includes many features including the powerful DView program (https://github.com/NREL/wex/wiki/DView), which provides an easy-to-use way to visualize complex time series data.

OpenStudio-HPXML

Modeling of residential buildings in EnergyPlus using OpenStudio/HPXML.

elm

ELM is a collection of utilities to apply Large Language Models (LLMs) to energy research.

OCHRE

A Python-based building energy modeling (BEM) tool designed to model flexible loads in residential buildings

lk

LK (Language Kit) is a simple but powerful scripting language that is designed to be small, fast, and easily embedded in other applications. The core LK engine, including lexical analyzer, parser, compiler, and virtual machine is only dependent on the Standard C++ Library (STL), making it extremely lightweight and portable.

ComStock

National scale modeling of the U.S. commercial building stock supported by U.S. DOE, LADWP, and others and maintained by NREL

REopt.jl

buildstockbatch

fastsim

OpenStudio-ERI

Energy Rating Index (ERI) calculation via OpenStudio/EnergyPlus.

altrios

HydroChrono

A hydrodynamics extension for Project Chrono, enabling simulations of wave energy converters, floating offshore wind turbines, and more.

Spawn

openstudio-extension-gem

engage

NREL Engage Project

PVade

PVade is a fluid-structure interaction solver for studying wind loading and aerodynamic stability in solar-tracking PV arrays.

EnergyPlusBuildResults

sustainability.gov

lhs

LHS is one library of Sandia National Laboratory's Dakota package.

CoolerChips

alfalfa-dependencies

NEB-Tool

A user friendly, graphical, open-source application (Web/Mac/Windows) of the multiple benefits framework for non-energy benefits, incorporating additional aspects to make the tool effective for use in the United States.

stepwise

STEPWISE is one library of Sandia National Laboratory's Dakota package.