Battery storage and solar hybrid site

The PPC built for solar, storage, and everything in between

FlexGen's HybridOS™ Power Plant Controller (PPC) integrates solar, storage, and substation control on a single, unified interface — or functions independently as a dedicated PPC.

Avoid multi-platform integration pitfalls

With a unified solar + storage interface, your operators and power controls respond to system-wide data to execute hybrid commands, increasing efficiency and reducing disjointed operating logic.

Commission sites faster

Less  software and services partners to manage combined with site-wide data and controls means accelerated testing and qualification timelines.

Reduce downtime through faster issue identification

Controls, analytics, and data access that span across solar, inverter, tracker, capacitor banks, substation, battery, and PCS allow for faster issue diagnosis and action.

Storage, solar, substations, sites. One controller.

Unify power plant control with HybridOS™ PPC’s single interface. Operators who trust FlexGen gain visibility into solar arrays, trackers, MET stations, capacitor banks, and batteries, with control modes to co-optimize assets.

HybridOS Architecture Diagram
Solar-Only Controls

Solar site control

Achieve full PPC functionality for solar-only plants and hybrid solar-plus-storage sites.

  • Direct control for PV arrays and trackers
  • MET station integration
  • Real-time and day-ahead capacity estimation
  • Solar shedding, smoothing, and curtailment
HybridOS Control Dashboard MacBook
Solar + Battery Controls

Energy storage co-optimization

Dispatch solar and battery assets together from one interface. Maximize revenue, grid compliance, and availability.

  • Unified solar and BESS dispatch
  • Selective solar charging
  • Market participation control modes
  • Integrated alarms and fault response
HybridOS Power Flow Panel ROC
From Site to Substation

Advanced grid control & substation integration

More control for operators who need deeper compliance and voltage management.

  • Capacitor bank control
  • Closed-loop voltage regulation
  • AVR/FR coordination
  • Substation telemetry and control
HybridOS Control BMS Macbook
Built to grow with your energy storage portfolio

HybridOS™ PPC is architected for phased expansion. Developers often start with solar, add BESS, then expand to substation control and multi-site dispatch as their portfolios scale across generations and storage mixes.

17 years of experience across energy markets

200+
Projects
completed.

Serving customers with unique needs including developers, IPPs, EPCs, utilities, munis, co-ops, data centers and more.

25+
GWh
completed and under contract.

That’s enough storage to power approximately 5 million average U.S. homes for 4 hours.

13 million
Hours
of runtime.

HybridOS’ single codebase is built off and improves from the cumulative experiences of 200+ global projects and 80+ equipment configurations

Frequently Asked Questions

What is a Power Plant Controller (PPC), and what does HybridOS™ PPC do?

A Power Plant Controller is the software layer that translates grid and market instructions into precise power commands across every asset on a site. That could cover inverters, trackers, capacitor banks, and batteries. HybridOS™ PPC does this across solar, storage, and substation assets in a single platform, eliminating the need for separate PPCs or third-party SCADA systems.

What's the difference between HybridOS™ PPC and HybridOS™ EMS?

HybridOS™ EMS is the One-Touch Commissioning™ energy management platform that includes site control, AI-powered analytics, and historical data. HybridOS™ PPC is one component within that platform, focused specifically on power plant control. They work together: PPC handles the real-time dispatch layer, while EMS provides fleet-level visibility, predictive intelligence, and the data infrastructure that supports it.

Can HybridOS™ PPC operate as a standalone controller for solar-only sites?

Yes. HybridOS™ PPC functions independently as a dedicated power plant controller for solar-only plants. FlexGen’s proven platform includes voltage regulation, reactive power support, AVR/FR coordination, and metering redundancy. Solar-only sites can add storage in the future without re-platforming.

Does HybridOS™ PPC support solar-plus-storage hybrid sites?

Yes, and this is the most common deployment. HybridOS™ PPC co-optimizes solar and battery assets from a single interface, supporting solar arrays, trackers, MET stations, capacitor banks, and BESS together. This eliminates the cost and complexity of running separate PPCs and third-party SCADA systems.

What solar control capabilities does HybridOS™ PPC include?

HybridOS™ PPC includes direct control for PV arrays and trackers, MET station integration, real-time and day-ahead capacity estimation, solar shedding, solar smoothing, selective solar charging, and solar curtailment. Custom control models such as nighttime Q control, closed-loop voltage regulation, and AVR/FR coordination are configurable to your interconnection requirements.

What communication protocols does HybridOS™ PPC support?

HybridOS™ PPC currently supports Modbus, DNP3, CAN, and Synchrophasor, providing broad compatibility across solar inverters, trackers, meters, protection relays, and battery BMS. Planned support includes OPC-UA, IEC 60870-5-104, and IEC 61850 for deeper substation and utility-grade integration.