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REopt Model and REopt Lite Capabilities Comparison

The following table compares the features and capabilities of the full REopt™ model to the REopt Lite web tool.



REopt Model Capabilities

REopt Lite Web Tool Capabilities


Optimize energy systems for buildings, campuses, and microgrids

Optimize PV, wind, and battery storage for commercial buildings

Technologies Evaluated

Photovoltaics (PV), solar hot water, solar ventilation preheating, wind, biomass, landfill gas, ground-source heat pumps, battery storage, conventional generators, and others for customized analyses

PV, wind, and battery storage

Sites Evaluated

Multiple sites

Single site

Load Types

Electric and thermal interval data from actual load profiles or simulated from U.S. Department of Energy (DOE) commercial reference buildings, and others for customized analyses

Electric-only interval data or load data simulated from DOE commercial reference buildings

Rate Tariffs

Blended rates, simple rate tariffs, and custom rates entered by user

Custom utility rate tariffs and rate tariffs selected from the Utility Rate Database

Resiliency Analysis

Simple outage analysis or complex stochastic outage modeling

Simple outage analysis


NREL internal only

Publicly available at

Learn more about future software development plans for the REopt Lite web tool.