REopt Web Tool User Guides
Learn more about the REopt® web tool from the following user guides, including a detailed user manual, user forum, tutorials, and recorded webinars.
User Forum
The REopt User Forum contains frequently asked questions about using the REopt web tool. You can browse and search discussions by topic and sign in to join discussions, ask new or follow-up questions, and leave comments and feedback.
User Manual
The REopt Web Tool User Manual provides an in-depth review of the tool, intended users and use cases, and instructions on how to get started. The user manual also contains details about the tool's data inputs, results, default values, and links to additional technical references.
Tutorials and Webinars
Quick-start video and fact sheet tutorials guide users through REopt web tool inputs and results, and the REopt application programming interface (API) and Open Source software.
View the full REopt Tutorial video playlist.
Overview of Tool Inputs
Learn how to choose an analysis focus, enter site data, and select a technology to evaluate in the REopt web tool.
Watch the Tool Inputs Overview video.
Download the Tool Inputs Overview fact sheet.
Custom Load Profile Inputs
Learn how to add and customize load profile inputs in the REopt web tool.
Watch the Custom Load Profile Inputs video.
Download the Custom Load Profile Inputs fact sheet.
Advanced Utility Rate Inputs
Learn how to customize advanced utility rate inputs in the REopt web tool.
Watch the Advanced Utility Rate Inputs video.
Download the Advanced Utility Rate Inputs fact sheet.
Resilience Inputs
Learn how to enter data for a resilience modeling analysis in the REopt web tool.
Watch the Resilience Inputs video.
Download the Resilience Inputs fact sheet.
Financial Analysis Results
This tutorial explains the financial modeling analysis outputs of the REopt web tool.
Watch the Financial Outputs video.
Download the Financial Outputs fact sheet.
Utility Rate Analysis
Use the REopt web tool to perform a utility rate analysis that compares the life cycle electricity costs of available utility rates at a given site.
Download the Utility Rate Analysis fact sheet.
Resilience Analysis Results
Learn about the resilience modeling outputs of the REopt web tool.
Watch the Resilience Outputs video.
Download the Resilience Outputs fact sheet.
API Overview
Embed REopt into your own applications for dynamic analysis using the Application Programming Interface, or API.
Watch the API Overview video.
Access the REopt API.
Open Source Software
Learn how to access REopt Open Source and explore the source code, build custom capabilities, and contribute new models.
International Locations
Learn how to make adjustments in the REopt web tool's inputs to run analyses for international locations.
Download the International Locations fact sheet.
Recorded webinars explore REopt web tool features and functionality.
Designing Hybrid Combined Heat and Power Systems: An Introduction to New Features
in NREL's REopt Lite Tool
Clean Energy Group Resilient Power Project webinar, Mar. 2, 2021
Energy Master Planning for Resilient Public Communities
National Academies of Sciences Federal Facilities Council workshop, Oct. 13–16, 2020
Introduction to REopt Lite Open Source
NREL webinar, Mar. 17, 2020
Save Money and Build Resilience with Distributed Energy Technologies
DOE Better Buildings webinar, Feb. 4, 2020
Designing Solar+Storage to Power Critical Loads: An Introduction to New Resilient
Power Features in NREL's REopt Lite Tool
Clean Energy Group Resilient Power Project webinar, Feb. 21, 2019
Simplifying Resilient Power Design with REopt Lite: A Look at New Features Added to
NREL's Solar+Storage Tool
Clean Energy Group Resilient Power Project webinar, July 25, 2018
REopt Lite: Sizing Solar+Storage for Savings and Resiliency with NREL's New Tool
Clean Energy Group Resilient Power Project webinar, Nov. 1, 2017