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.

FlexGen EMS Retrofit Solutions Enable Success
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.

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.

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
