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REopt Projects

REopt™ modeling and REopt Lite™ analysis can be applied to energy optimization projects that include renewable energy, microgrids, electric vehicles, energy storage, and combined heat and power.

Featured Projects

A map shows the locations and sizes/net present value of renewable energy projects across the United States. The largest yellow circles, located in California, Hawaii, and the Northeast, represent projects with a net present value of $850,000 to $2.2 million. The second largest yellow circles represent projects with a net present value of $350,000 up to $850,000. The third largest yellow circles represent projects with a net present value of $200,000 up to $350,000. Smaller yellow circles represent projects with a net present value of $100,000 up to $200,000. The smallest yellow circles represent projects with a net present value of less than $100,000.

REopt Identifies and Prioritizes Renewable Energy System Potential Across Time Warner Cable Facilities
Time Warner Cable partnered with NREL to perform a REopt analysis at 696 of its U.S. facilities.

A man and woman walk next to Fort Carson's utility scale lithium ion Battery Energy Storage System (BESS) installation.

REopt Evaluates Savings Potential for a Load-Shaving Battery System at Fort Carson
NREL used REopt to review the savings potential and design of the battery energy storage system, which reduces peak electric demand and improves the resilience of Fort Carson's grid.

Rows of solar panels with a red and white tower on top of a building behind them.

REopt Lite Verifies PV and Battery System Design at a Federal Communications Site in Puerto Rico
U.S. Immigration and Customs Enforcement used REopt Lite to verify economic viability and design specifications of photovoltaic (PV) and battery storage.

A solar porject in Hawaii

REopt Optimizes Hawaiian Residential Solar-Plus Technologies
REopt was used to optimize combinations of PV and “solar-plus” technologies for Hawaii residential utility customers.

Two electric vehicles parked under a PV canopy.

REopt Evaluates Electric Vehicle Charging Stations for the Vehicle Technologies Office
The Department of Energy Vehicle Technologies Office used the REopt model to evaluate solutions to reduce operating costs of electric vehicle DC fast charging stations.

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

REopt Optimizes Real-Time Operation of NREL's Campus
NREL's Intelligent Campus project uses REopt to determine optimal dispatch strategies, reduce operating costs, and increase efficiencies across multiple buildings and distributed generation technologies.

Explore Projects by Topic

The REopt model has efficiently identified and prioritized renewable energy opportunities across portfolios of properties spanning multiple cities, states, or countries. REopt analysis is tailored to the individual energy requirements, costs, resources, and constraints of each client and site. The model identifies the most cost-effective and technically viable ways to meet energy goals and the estimated costs to achieve them.

Evaluation and Prioritization of Renewable Energy Projects

Support for Campus-Wide Carbon Reduction Strategies

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 and operating strategies to provide ongoing economic savings and extend site survivability during outages. REopt quantifies the resiliency impact of renewable energy and storage in energy systems.

Microgrid Opportunity Analysis

Evaluating Energy Storage for Resiliency and Energy Security

Remote Communities and International Projects

The REopt Lite web tool empowers energy and facility managers to identify, evaluate, prioritize, and plan their most economically viable renewable energy and energy storage opportunities.

The REopt model evaluates solutions to reduce operating costs of electric vehicle DC fast charging stations, including coupling stations with energy storage and distributed solar photovoltaic generation, and colocating them behind the meter of existing commercial loads.

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.

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

Need help with an energy optimization project?

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