Last week's grid disturbance on PJM Interconnection, the largest wholesale electricity market in the U.S., was a reminder that reliability isn't only about adding more generation. It's also about how large loads interact with the grid when conditions change. When several gigawatts of data center load disconnected within minutes, the resulting voltage disturbance extended well beyond Virginia. As AI infrastructure continues to scale, events like this highlight why coordination between large loads, utilities, and grid operators is becoming increasingly important. Battery energy storage and intelligent energy management software have an important role to play. Rather than having a facility's grid demand effectively drop off in seconds, a battery can temporarily supply the load while energy management software coordinates a controlled ramp-down over the course of several minutes. That gives the grid more time to respond, reducing the impact of sudden load changes while maintaining resilient operations for the facility. As data centers become larger and more power-intensive, intelligent orchestration across batteries, generators, utility connections, and flexible loads will become increasingly important for both facility resilience and grid reliability. https://lnkd.in/eJdEqAMt #EnergyStorage #DataCenters #GridReliability
FlexGen
Software Development
Durham, North Carolina 25,348 followers
Leading Energy Storage Technology Solutions
About us
FlexGen delivers the best integrated energy storage systems by taking a functionality and software-first approach. We fundamentally turn battery energy storage systems on, deliver advanced functionality through the HybridOS™ energy management system platform, and integrate with the best energy storage hardware systems available. We are hardware agnostic and have flexible approaches to delivering systems that empower our customers to procure hardware or FlexGen to provide hardware as part of a complete system solution.
- Website
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http://www.flexgen.com
External link for FlexGen
- Industry
- Software Development
- Company size
- 201-500 employees
- Headquarters
- Durham, North Carolina
- Type
- Privately Held
- Founded
- 2009
- Specialties
- Solar + Storage, Flexible Generation, Battery Energy Storage Solutions, Integration, Batteries, Integration Software, Energy Trading Platform, Utility Scale Backup Power, Energy Transition, Energy Storage, Battery Energy Storage, Lithium Ion Batteries, Energy Management System, Energy Management, Power Plant Control, Engineering Procurement Construction, EPC, LTSA, Lifecycle Services, and Remote Monitoring
Locations
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Primary
Get directions
280 S Mangum St
Durham, North Carolina 27701, US
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302 E Atlantic Ave
Delray Beach, Florida 33483, US
Employees at FlexGen
Updates
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Texas just set a new all-time electricity demand record, and the grid handled it. As Zach Vosburg points out, the story isn't just record demand. It's what made that possible behind the scenes. Battery storage delivered more than 10 GW during the evening peak, helping ERCOT maintain reliability without emergency measures. As demand continues to grow, getting storage projects online quickly is becoming just as important as building them. Turning battery projects into reliable, dispatchable grid assets requires the right integration, controls, and operational expertise.
Texas broke its all-time power demand record this week. Nothing happened. That is the story. On July 22, ERCOT demand pushed past 90 GW, per the grid operator's preliminary data. The old record, 85.5 GW in August 2023, nearly triggered rolling blackouts. This time: no emergency, no conservation call, reserves above 20 GW, reasonable wholesale prices through the peak. How did this happen? Texas let new capacity in, mostly in the form of solar and storage. They've done it quickly. ERCOT projects 27 GW of storage by year end, up from roughly 5 GW in 2023, because its interconnection process lets batteries connect in months, not years. On the record day, that fleet discharged more than 10 GW into the evening ramp. Texas does not have access to technology that others don't. It did not out-invent other grids. It out-deployed them. The lesson for everyone building in this market: the grid opened the door, but getting from signed interconnection agreement to a dispatching asset in months is integration work. That is a partner decision, and it is now a reliability decision. How much schedule risk sits in your integrator selection?
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The grid is being asked to do more than ever before. As AI and new data centers drive electricity demand higher, keeping the grid stable is becoming more and more complex. The 2025 Iberian Peninsula blackout showed how quickly a grid disturbance can escalate. Our latest video breaks down what happened during the blackout, why voltage regulation played such a critical role, and how battery energy storage can help grids respond faster when conditions change. Battery storage does more than store energy. When paired with intelligent controls, it becomes an active grid asset, providing real-time voltage support, frequency response, and the flexibility needed to support an increasingly complex power system. Watch the video to learn what happened, what the industry is doing differently, and why battery storage will play an increasingly important role in supporting tomorrow's power grid. https://lnkd.in/ebqcRj4T #EnergyStorage #GridReliability
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We're excited to welcome Alexis Dennis to FlexGen as our newest Business Development Director! Alexis brings more than a decade of experience helping utilities and industrial customers deploy critical power infrastructure and advance grid modernization initiatives. Throughout her career, she has held leadership and business development roles with organizations including Concentric Power Services, Ensto North America, Arcteq North America, MasTec, Hubbell Power Systems, Tier Power Systems, and ABB. Most recently, Alexis served as Vice President, Utility and Industrial at Concentric Power Services after leading the company's Energy Storage Solutions business. Her background also includes business development, utility solutions, and industrial power leadership roles supporting electric utilities, industrial customers, and critical infrastructure projects throughout North America. At FlexGen, Alexis will focus on expanding relationships with investor-owned utilities (IOUs), electric cooperatives, public utility districts (PUDs), municipal utilities, and the developers delivering the next generation of battery energy storage projects. Her extensive experience supporting utility customers and bringing innovative power solutions to market makes her an outstanding addition as FlexGen continues to help customers maximize the value of energy storage through industry-leading software, controls, and lifecycle services. Please join us in giving Alexis a warm welcome to the FlexGen team! We're excited for the expertise, leadership, and customer focus she'll bring as we continue powering the transition to a cleaner, more resilient electric grid. #EnergyStorage #Utilities #GridModernization
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Across Europe, increasing power demand is making battery storage a critical part of strengthening reliable, affordable, and resilient grids. With FlexGen bringing its HybridOS® energy management platform and lifecycle services to the region, operators will have deeper local access to software and operational support that enables them to understand what's happening across their battery assets, respond to changing operating conditions, and keep systems performing reliably long term. Mike Wallace, Managing Director Europe, explains what's driving FlexGen's expansion into the region. Learn more: https://lnkd.in/eFcCzUMH
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Europe's battery energy storage market is growing rapidly, and developers and operators need software that helps them maximize the performance and value of every asset. ESS News recently featured FlexGen's expansion into Europe, highlighting how we're bringing our HybridOS® energy management platform and local expertise to customers across the region. With projects underway across the UK, Finland, and Sweden, we're helping customers improve asset availability, optimize performance, extend battery life, and navigate increasingly dynamic power markets. Read the full article here: https://lnkd.in/e-B4aiGb #EnergyStorage #BatteryStorage
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Software is a critical component of how battery assets are operated, maintained, and optimized over their lifetime. On a recent episode of the SunCast Podcast, FlexGen's Director of BESS Data Analytics and Software Strategy, Ty Fenton, shared how sophisticated operation tools, analytics, and automation are helping operators identify potential issues earlier, reduce repetitive manual work, and spend more time optimizing asset performance. It's a conversation about where battery storage operations are headed and how software helps operators stay ahead of problems before they impact performance.
Battery storage is becoming less about reacting faster and more about knowing what is coming next. I joined NICO JOHNSON on the SunCast Podcast to talk about what it actually takes to operate battery storage assets well. One topic we covered was the shift from reactive operations to earlier detection and more automated intervention. In storage, a lot of operational knowledge has historically lived with experienced people. A technician sees a signal, remembers what it usually means, and knows what to do next. That expertise is valuable, but it is hard to scale across a growing fleet. The opportunity now is to take the patterns operators already understand and make them repeatable. For example, in some cases, specific cell-level warning signs can show up well before a failure occurs. If a signal reliably appears before a known failure mode, the system should surface it early. In some cases, the response can be automated during low-value operating windows. The same idea applies to routine recalibration. Batteries can drift from their measured state of charge over time. That is not always a true equipment fault, but it still creates operational work. Historically, someone had to identify it, confirm it, and correct it manually. That is exactly the kind of recurring task software should help reduce. For me, the key points are: 1. Recurring and well-understood problems are usually the best place to start with automation. 2. Early warning signals are only valuable if they lead to better operational decisions. 3. Automation should reduce repetitive work, not remove human judgment from the system. This does not replace operators. It changes the work they spend time on. Less time chasing known issues. More time focused on the harder questions: how to operate the asset, manage risk, and improve performance. That shift from reacting to problems toward preventing them is one of the more important operational changes happening in storage. Thanks to Nico Johnson and the SunCast Media team for having me on Episode 946. Episode link in the comments.
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Power availability may be leading the conversation around AI infrastructure, but maintaining power quality is quickly becoming top of mind for owners and operators. As AI training workloads scale, data centers are experiencing large, rapid swings in power demand. These transient loads can stress grid infrastructure and on-site energy assets, creating challenges for facilities that require uninterrupted uptime. But while the AI data center application is new, many of the underlying challenges are familiar to anyone managing complex energy systems. Our latest video explores how HybridOS ™ helps orchestrate batteries, generators, power conversion systems, and grid connections in real time, enabling AI infrastructure to adapt to rapid load changes while maintaining reliable operations as facilities scale. Dive deeper into how proven load-smoothing and multi-asset orchestration strategies can help support reliable AI operations at scale in our latest blog: https://lnkd.in/eSyWtCdK #AI #DataCenters #TransientLoads #EnergyManagement
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AI is accelerating demand for new data centers, but power infrastructure is struggling to keep pace. As developers race to bring new capacity online, they're facing growing challenges around grid interconnection, power quality, and increasingly complex energy systems. Solving these challenges is essential to building reliable, scalable AI infrastructure. Our latest white paper explores how battery energy storage and intelligent energy management software can help data centers: • Reduce time-to-power • Manage volatile AI-driven power demand • Coordinate grid, generators, solar, and storage in real time • Support next-generation power architectures as compute density grows This white paper offers practical insights into solving the four main challenges that AI data center developers face. Latitude Media #DataCenters #AI #PowerDemand
The data center industry has a power problem. Interconnection queues now stretch years beyond when AI-driven data centers need to come online. Training workloads throw rapid, unpredictable power swings that can damage onsite generators and destabilize local grids. Server racks that used to draw a few kilowatts now pull hundreds. The old model simply isn't built for any of this. A new white paper from FlexGen examines four power challenges reshaping AI data center power strategy and how to solve them with energy storage: → Time-to-power delays as interconnection queues grow → Power quality risks from AI's volatile transient loads → The complexity of orchestrating grid, battery, generator, and solar assets in real time → UPS architectures struggling to keep pace with rising rack density Drawing on lessons from microgrid and utility-scale deployments, this white paper outlines how software-driven, battery-centric power architectures can help data centers scale without waiting on the grid. Download the full white paper now: https://lnkd.in/gehzMJx2
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Some of the best learning happens in the field. Our interns recently visited a battery energy storage system (BESS) site to see firsthand how the technology they're supporting comes together in the real world. From the control systems behind the scenes to the scale of the equipment on site, the experience connected classroom knowledge, safety, and day-to-day work with the critical role energy storage plays on the grid. Experiences like these help build the next generation of energy storage professionals while giving interns a deeper understanding of the industry they're helping shape. #EnergyStorage #BatteryStorage #GridTech
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