HOMER Front

Utility-Scale Hybrid Systems

Maximize return on utility-scale storage systems, with or without solar or wind

Maximize value and mitigate risks of energy storage, solar, wind and hybrid projects

Evaluate most major energy markets worldwide

Robust online platform saves hours of analysis time ​

For project development, bid evaluation and due diligence​​


Built on UL Solutions’ trusted HOMER hybrid power optimization platform, HOMER® Front software provides a powerful online web application that helps you more accurately and quickly model and optimize the technical and economic performance of utility-scale battery energy storage systems (BESS), solar and wind – independently or as hybrid systems.

Utilizing the software’s simple, intuitive interface and robust simulations, you get critical, actionable insights into maximizing multiple energy markets and revenue streams, and determining the most efficient system size, battery dispatch and augmentation strategies.

You can determine the winning system faster when you optimize essential aspects of your design with HOMER Front software.

Size your system

Calculate the optimal size of energy storage, solar, wind and other components in utility-scale systems — whether as standalone, single energy resource systems or combined in hybrid systems.

Manage battery augmentation

Model battery lifetime, capacity degradation and augmentation or replacement strategies to minimize ongoing expenses and maximize revenue. Custom storage capability enables you to input details that replicate commercially available batteries.

Compare revenue streams for energy markets worlwide​

Perform detailed, holistic modeling of most major electricity markets worldwide, including day-ahead, merchant, wholesale or real-time energy markets down to a 15-minute interval. Evaluate power purchase agreements with time-of-delivery obligations, capacity markets and ancillary services such as frequency regulation. Stack and compare multiple revenue streams and dispatch strategies and calculate revenue possibilities. Select from all major monetary currencies and customize inputs for a specific country or region.

Utilize robust sensitivity analysis

De-risk your internal rate of return (IRR) by conducting sensitivity analysis on key performance parameters that often fluctuate, such as solar irradiance, wind speeds or energy market prices. Screen project sites and evaluate site and system economic viability.

Create insightful proposals that help demonstrate project value

Quickly turn your project analysis into a customer-facing proposal that presents critical aspects of your project, including revenue streams, technical performance and return on investment.

With a detailed proposal, you, your customer and your stakeholders can move forward confidently.


Mitigate risks and make hybrid power system decisions with confidence


Stop utilizing inadequate spreadsheets. Instead rely on accurate, confirmable analysis of multiple inputs of energy resources, markets, and dispatch and augmentation strategies that help you maximize return on investment while reliably meeting contractual obligations.

HOMER Front software provides a trusted third-party model that helps partnering companies, financiers and customers feel more confident.

Maximize value and mitigate risks of energy storage for solar, wind and hybrid projects

Put the power of UL Solutions HOMER software and advisory services to work for you.


Map shows locations of the more than 250,000 users enabled by HOMER software in over 190 countries around the globe

UL Solutions HOMER software optimizes the value of your hybrid power systems and energy storage – whether your system is standalone, connected to the grid, behind-the-meter or utility scale.

You can leverage our long-standing expertise in renewable energy and trusted independent engineering by licensing our software and performing your own modeling. Or you can utilize our team of experts to support your full project, including market and regulatory assessment, project and site evaluation, technical design and analysis.

You gain unmatched advanced energy storage modeling along with our 25+ years of experience modeling hybrid power systems.