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REopt Projects

REopt™ modeling can be applied to many types of energy optimization projects.

Renewable Energy Screenings

The REopt model efficiently identifies and prioritizes renewable energy opportunities across a portfolio of properties in multiple cities, states, or countries, each with its own energy requirements, costs, resources, and constraints. REopt identifies the most cost-effective ways to meet energy goals, estimates the cost of achieving those goals, and helps organizations identify the most economically and technically viable opportunities.

Photovoltaic panels

Photo by Tanja Linton, U.S. Army

The following case studies describe REopt renewable energy screening projects:

Army and Navy

Time Warner Cable

University Solar Plus Storage

Campus Planning

NREL helps campuses identify the least-cost pathways to achieving energy or carbon reduction goals. REopt evaluates a range of energy options and provides an optimized system architecture and operation strategy. This allows campuses to devote their limited resources toward solutions with the highest chance of success.

ASU sports arena with a solar array on the roof.

Photo from ASU

The following case studies describe REopt campus planning projects:

Arizona State University

Miami University of Ohio

University of Colorado, Boulder

Microgrids and Resiliency

REopt evaluates how renewable energy and storage can be incorporated alongside conventional generation in grid-connected or off-grid microgrids to meet critical loads at the lowest life cycle cost. REopt optimizes system sizes as well as operating strategies to provide economic savings while grid-connected and extend site survivability during outages. REopt quantifies the energy resiliency impact of renewable energy and storage in energy systems.

Wind turbines

Photo from STG Incorporated, NREL 16307

The following case studies describe REopt microgrid and resiliency projects:

Alcatraz Island

Department of Defense

New York City

Remote Communities

Energy Storage

REopt evaluates how energy storage can be leveraged for economic savings through demand reduction, time-of-use shifting, and participation in demand response programs, ancillary service markets, and frequency regulation markets. REopt looks at storage in integration with other energy assets and calculates system sizes and operating strategies to maximize economic benefit.

Solar energy, battery storage, and backup generator system.

Photo by Warren Gretz, NREL 09740  

The following case studies describe REopt energy storage projects:

Commercial Solar Plus Storage

Military Base

Residential Solar Plus Storage

San Diego Gas and Electric

Energy and Water Nexus

REopt evaluates how water treatment and storage systems can be leveraged for economic savings through demand reduction and time-of-use shifting. REopt looks at water treatment and storage in integration with other energy assets and calculates system sizes and operating strategies to minimize life cycle costs.

Water system holding tank and windmill with solar panels.

Photo from Katie Guerra, U.S. Bureau of Reclamation

The following case studies describe REopt energy/water nexus projects:

British Virgin Islands

U.S. Bureau of Reclamation

New Research Areas

NREL continues to expand the application of the REopt model to new areas, including energy efficiency and renewable energy optimization, demand management, nuclear-renewable hybrid system optimization, and model predictive control.

An NREL scientist works in front of a wall-sized energy system design schematic in a 3-D visualization laboratory.

Photo by Dennis Schroeder, NREL 43372

The following case studies describe new research areas for REopt:

Intelligent Campus

Renewable and Nuclear Energy

Need help with an energy optimization project?

Email REopt@nrel.gov with questions about using REopt to optimize energy systems at your site.