EMS Retrofits Unlock the Full Potential of Energy Storage Assets

FlexGen offers solutions to diagnose systems, optimize performance, and upgrade energy management systems (EMS) towards higher availability, better control, and stronger financial returns—all with minimal risk and downtime.

Energy Management System BESS

FlexGen EMS Retrofit Solutions Enable Success

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Single-Source for Real-Time Performance

Gain real-time visibility into system health, including State of Charge, State of Health, and predictive maintenance analytics.

Make immediate control adjustments rather than waiting weeks or months for vendor support.

Reduce operational friction with a system designed for seamless interoperability.

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Unlock Financial Impact

Increase revenue potential by improving battery uptime, extending asset life, and increasing market participation efficiency.

Reduce maintenance costs by transitioning to a system with embedded automation and predictive diagnostics.

Justify the investment with a clear cost-benefit analysis showing how an EMS swap pays for itself in uptime improvements.

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Establish Long-Term Strategic Benefits

Future-proof your investment with a continuously evolving EMS that adapts to regulatory changes and new market opportunities.

Partner with a team of 250+ energy storage experts committed to long-term success.

Secure a trusted technology foundation to support multi-site portfolios and future expansions.

FlexGen EMS Retrofit Solutions

FlexGen solutions are designed to assess and fix underperforming assets and enable customers with better operational control to maximize performance.

Analytical Site Assessment

For operators looking to understand where performance gaps exist, we offer an Analytical Site Assessment. This provides actionable insights with minimal disruption to your operations. An Analytical Site Assessment consists of four steps to ensure clarity about your site performance, issues and next steps for success. 

  • HybridOS Analyze – FlexGen’s vendor-agnostic analytics software connects to your EMS and battery data, identifying hidden performance limitations. 
  • Performance Engineering Review – Our engineers assess how your system compares to industry benchmarks. 
  • Onsite Field Inspection – A hands-on, physical inspection to validate data-driven findings. 
  • Financial Impact Study – We translate performance gaps into tangible financial implications, quantifying the cost of lower availability and lost revenue. 
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EMS Retrofit

For projects suffering from persistent EMS failures, we offer a seamless EMS replacement experience. We understand the concerns of cost, downtime, and uncertainty which is why we designed the smoothest, most predictable EMS transition process in the industry. 

  • Innovation Lab Pre-integration & Testing —Before we touch your site, we map your DC and AC block using vendor modbus maps, build a digital twin, and simulate system behavior. 
  • One-Touch Commissioning – Our field-tested deployment process ensures smooth deployment and minimizes downtime. 
  • Hands-off HybridOS Implementation – Simplified set-up processes and remote testing guidance ensure speed of implementation. 
  • Seamless Field-Testing Validation—Because we resolve most issues in advance, onsite commissioning is faster and smoother 
  • Lifecycle Services – Our remote monitoring, predictive maintenance, and ongoing software upgrades ensure that your EMS continuously improves over time. 
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Make FlexGen Your Trusted Partner

We don’t just swap out an EMS—we unlock the full potential of your battery storage assets. If your EMS isn’t delivering the performance you need, it’s time to take control. 

  • 15+ years of optimizing battery storage systems 
  • Vendor-agnostic technology that works across multiple manufacturers 
  • Durham, NC-based configuration lab to test before deployment 
  • 250+ energy storage experts dedicated to your success 
  • The most seamless EMS transition process in the industry 
A modern battery energy storage system (BESS) installation in a rural setting, supporting grid reliability and renewable energy integration.

Contact us today for an Analytical Site Assessment