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Microgrid and Distributed Energy Resources Modeling Software

UL and HOMER Energy by UL provide tools, services and information for the microgrid and distributed energy market.

High view of solar panels

Modeling software for technical and economic optimization of microgrid and distributed energy resources and systems

UL helps customers in the fast-growing microgrid and distributed energy market maximize efficiency, cost-savings, and revenue along the hybrid microgrid value chain. Our customers realize value, demonstrate safety and deliver performance by utilizing our hybrid power system optimization software. HOMER modeling software facilitates decision making on the optimal mix of resources, system configuration, and capital and operating costs of microgrids and distributed energy resources (DER). Together, UL and HOMER Energy by UL provide a strong foundation to empower people around the world with tools, services, and information to accelerate the adoption of renewable and distributed energy sources. 

Person using HOMER Pro microgrid software on a laptop


HOMER® Pro provides insight into the complexities and tradeoffs of designing cost-effective, reliable microgrids or distributed energy resources that combine conventional and renewable energy, storage and load management. Through the simulation of engineering and economic feasibility in a single run, you can make  informed decisions and design the least-cost system with confidence. HOMER Pro enables the optimization of standalone hybrid microgrid applications in all sectors—from village power to island utilities.

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HOMER Grid microgrid software on a laptop with a man seated at a desk.


Homer Grid® optimizes the value of behind-the-meter, distributed energy systems anywhere in the word, especially when demand charges, resilience, and energy arbitrage matter.  With HOMER Grid, you can intelligently reduce the peak power you buy from the utility each month, determine the best mix of resources for the least-cost solution, design a system with the highest possible rate of return, and demonstrate the value of your behind-the-meter grid-connected distributed generation systems.

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Woman working on computer with HOMER SaaS API on the computer screen.


Companies and organizations of all sizes have used HOMER SaaS API to deploy custom applications to streamline internal processes, generate leads and qualify customers, or seamlessly integrate HOMER into their own software platform. HOMER SaaS enables you to create customized web, mobile, or desktop applications, built on the power of the HOMER Pro or HOMER Grid.

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Illustration of solar, wind and energy storage for a distributed energy system.

HOMER® Controller API

The HOMER platform for optimizing microgrid design includes your choice of out-of-the box controller algorithms. If your business has its own proprietary controller solution, you can use the HOMER Controller API to deliver your controller and its logic as an option in the HOMER platform.

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