FlexGen Power Systems and Lightshift Energy have announced the continued expansion of their energy management system partnership, now spanning 16 battery energy storage projects across Massachusetts, Virginia, and Vermont.

Six of those projects have already reached completion, delivering more than 25 megawatts and 85 megawatt-hours of storage capacity to regional grids, while a further ten projects currently under construction are expected to add more than 55 megawatts and 200 megawatt-hours upon completion.

Partnership Origins and Portfolio Growth

The two companies first worked together in 2024, when Lightshift selected FlexGen's HybridOS energy management system for a battery storage project in Groton, Massachusetts.

That site was positioned adjacent to a local substation, designed to deliver targeted grid support through peak shaving during high-demand periods, with the goal of bolstering energy reliability and lowering costs for the surrounding community.

Since that initial deployment, Lightshift has continued to expand its use of FlexGen's HybridOS software across projects involving diverse use cases, different battery manufacturers, and a variety of utility customers.

The partnership now covers projects operating within both the PJM and ISO-NE grid regions, two of the largest electricity markets on the East Coast of the United States.

Joe Leavitt, Chief Technology Officer at Lightshift Energy, described the relationship as establishing a replicable model for deploying battery storage assets across sites with varied technologies and distinct operational requirements.

Leavitt pointed to growing energy demand across New England and the PJM region as the key driver pushing utilities to seek solutions that strengthen local grids while managing costs for residents.

Danville Upgrade Boosts Capacity and Extends Asset Life

A significant recent development in the partnership involves the completion of a comprehensive integration upgrade at Lightshift's battery storage facility in Danville, Virginia. That site serves Danville Utilities and provides flexible capacity to support peak shaving and demand response programs during periods of elevated energy demand.

The upgrade involved a complex overhaul of both the battery management system and the energy management system, along with the addition of supplementary batteries to increase the site's overall storage capacity.

According to the companies, the work resulted in a 14 percent enhancement in the site's capacity, while also extending the operational lifespan of the energy storage asset.

Jason Abiecunas, Executive Vice President of Business Development at FlexGen, framed the Danville upgrade as emblematic of a broader industry shift. He argued that meeting energy needs going forward will require not only building new battery projects, but also extracting additional value from existing infrastructure by extending asset life and unlocking capacity that might otherwise go untapped.

New Projects and the Role of HybridOS Software

Building on the Danville work, the companies have announced plans for a second project at that location called Danville II. The new installation will be an 11-megawatt project also serving Danville Utilities, operating as a peak-shaving asset intended to reduce energy costs for residents and support regional load growth. The project reflects the city's ongoing commitment to managing energy expenses for its customer base.

For all ten projects currently under construction, FlexGen's HybridOS platform will serve as the energy management system. The software is described as compatible with more than 80 configurations of batteries and power conversion systems, and is designed to be modular and scalable. That flexibility allows operators to adjust software configurations to meet a wide range of site-specific, hardware-specific, and regulatory requirements.

The announcement highlighted the software's ability to deliver optimized uptime, performance, and reliability across diverse deployments, a capability that Lightshift has cited as a core reason for its continued selection of FlexGen's platform as it scales its portfolio.

Grid Reliability and Community Impact

Both companies positioned the expanded partnership in the context of mounting pressure on regional electricity infrastructure. Utilities across New England and the Mid-Atlantic are grappling with increasing energy demand, and battery storage has emerged as a tool for addressing peak load challenges without requiring large-scale transmission investments.

The projects in this partnership are framed as community-level interventions as much as grid infrastructure plays. Lightshift, which is headquartered in Arlington, Virginia, and was founded in 2019, describes its business model as blending the benefits of transmission-scale capacity with local grid resources through aggregation.

The company develops, owns, and operates its projects, with the stated aim of maximizing value for utility partners while investing in the communities where its assets are located.

FlexGen, based in Durham, North Carolina, reports that its software platform currently serves more than 25 gigawatt-hours of storage capacity across more than 200 energy storage systems globally. The company describes its customer base as spanning developers, utilities, government agencies, and industrial companies.

Expanding the Definition of Energy Storage Deployment

The Danville upgrade component of the announcement points to an evolving dimension of the battery storage industry, one that extends beyond greenfield construction to encompass the optimization and augmentation of facilities already in operation.

By upgrading existing systems to increase capacity and extend longevity, developers and software providers are positioning themselves to extract sustained value from earlier-generation assets as grid demands continue to intensify.

The ten projects currently under construction represent the next phase of a pipeline that the two companies have signaled they intend to keep growing, with Danville II among the named additions to the shared project roster.

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