- Lightshift develops, owns, and operates the projects while FlexGen provides energy storage software and services, including its FlexGen HybridOS® energy management system (EMS).
- More than 25MW/85MWh of energy storage already operating in PJM and ISO-NE strengthens local grid reliability and helps lower costs during high-demand periods.
- FlexGen’s advanced, flexible energy storage software and services enable Lightshift to deploy new assets and modify existing ones as project or grid needs evolve over time.
DURHAM, NC (September 16, 2026) -- FlexGen Power Systems, LLC. ("FlexGen"), a leading battery energy storage system and energy management software provider, together with Lightshift Energy, a battery storage developer, today announced the continued expansion of their partnership for energy management systems across 16 battery energy storage system (BESS) projects in Massachusetts, Virginia, and Vermont. Six projects have been completed to date, delivering more than 25MW/85MWh of flexible storage capacity to local grids and communities, with another ten projects that will deliver over 55MW/200MWh under construction.
FlexGen and Lightshift first partnered in 2024 on the deployment of FlexGen’s HybridOS® energy management system (EMS) at Lightshift’s battery storage project in Groton, MA. Strategically located next to a local substation, the site provides targeted grid support through peak shaving during high-demand periods, bolstering energy reliability and lowering energy costs for the surrounding community. Since then, Lightshift has selected FlexGen’s HybridOS for additional projects spanning diverse use cases, battery manufacturers, and utility customers.
"Across New England and the PJM region, growing energy demand is driving utilities to explore solutions to strengthen their local grids while reducing costs for residents,” said Joe Leavitt, Chief Technology Officer at Lightshift Energy. "Our work with FlexGen has created a strong model for the deployment of battery storage assets across sites with various technologies and unique needs. As we expand our portfolio, we look forward to building on that successful track record as we continue to help utility partners meet growing demand, manage costs for the communities they serve, and strengthen grid reliability and resilience.”
FlexGen and Lightshift Expand Scope of Partnership with BESS Upgrade
The companies have recently expanded the scope of their work together by completing a comprehensive integration of FlexGen’s EMS at Lightshift’s BESS facility in Danville, Virginia. The Danville BESS site provides flexible capacity to Danville Utilities to support peak shaving and demand response programs during periods of high demand.
By executing a complex upgrade of the battery management system (BMS) and EMS and augmenting the site with additional batteries, FlexGen and Lightshift enhanced the site’s capacity by 14%, delivering additional grid stability and extending the energy storage asset’s lifespan.
“It’s no longer just about building more battery projects. Meeting our energy needs will require getting more from the assets we already have,” said Jason Abiecunas, Executive Vice President of Business Development at FlexGen. “That means finding ways to extend asset life, unlock additional capacity, and ensure we’re maximizing the value provided by each site. We’re proud of what we’ve accomplished through our work with Lightshift and look forward to growing that partnership.”
FlexGen and Lightshift Continue to Grow Partnership with New Projects
With the successful EMS partnership on six projects to date, FlexGen and Lightshift plan to continue growing their portfolio of work together through additional projects, such as Danville II, a second 11MW project with Danville Utilities that will act as a peak shaving asset and build on the city’s commitment to reducing energy costs for its residents and supporting regional load growth.
FlexGen HybridOS will serve as the EMS for the additional ten projects under construction, delivering optimized uptime, performance, and reliability. The software is compatible with 80+ configurations of top-tier batteries and power conversion systems (PCS). Designed to be modular and scalable, FlexGen HybridOS gives operators flexibility over software configurations to meet a wide variety of site, hardware, and regulatory-specific requirements.
Media Inquiries: flexgen@ink-co.com
About FlexGen Power Systems, LLC. FlexGen provides software and services for deploying, managing, and optimizing battery energy storage systems. FlexGen leverages more than 15+ years of software, engineering, and procurement expertise to solve today’s toughest energy challenges that enable the transition to a modern electric grid. FlexGen HybridOS® energy management software integrates with battery OEMs and offers advanced analytics and AI-driven insights that allow energy storage owners to deploy diverse power market strategies and integrate various generation forms, enhancing grid stability and economic returns. Serving more than 25+ GWh and over 200 energy storage systems enabled by FlexGen, we are trusted by the most technically and commercially demanding developers, utilities, government agencies, and industrial companies worldwide.
About Lightshift Energy. Lightshift Energy is a utility-scale energy storage developer, owner, and operator headquartered in Arlington, Virginia. Founded in 2019, the company develops impactful standalone energy storage projects that deliver value through advanced analytics and multi-use applications. Through its portfolio approach, Lightshift blends the benefits of transmission scale capacity with local grid resources through aggregation, maximizing value for utility partners and their customers while investing downstream in communities for their direct benefit. For more information, please visit www.lightshift.com.
