Bidirectional DC/AC converter
for BESS
The PCS (Power Conversion System) links the battery to the grid. It handles bidirectional DC/AC conversion: charging the batteries from the grid or solar, and discharging stored energy to the load or the grid.
The architecture is modular. A single 105 kW cabinet can be extended to 100 MW+ by adding modules and cabinets. Modules are hot-swappable.
Integrated EMS (Energy Management System), MPPT solar inputs and on/off-grid switching within 20 ms are available for commercial, industrial and utility-scale storage.
cabinet capacity
efficiency
transfer time
capacity
PCS Cabinets: 105 kW to 3.45 MW
Six cabinet sizes. All use the same modules and can be combined for larger installations.
105/125kW PCS
DC-Coupled- 4 x 50kW MPPT solar inputs
- 105kW or 125kW PCS module
- 250kW STS (Static Transfer Switch)
- Integrated EMS
- On/off-grid switching <20ms
250kW PCS
Dual Module- 4 x 50kW DC/DC converter inputs
- 2 x 105/125kW PCS modules
- Integrated EMS
- Battery range 250V – 750V DC
- Parallel operation capable
105/125kW PCS
IP54- Single 105kW or 125kW PCS module
- Compact IP54-rated enclosure
- Bidirectional DC/AC conversion
- Standalone or parallel deployment
500kW PCS
Modular- 4 x 125kW PCS modules
- 1, 2 or 4 battery group configurations
- Hot-swappable modules
- Modular redundancy
- Scalable for larger arrays
1 MW PCS
Modular- 8 x 125kW PCS modules
- 1, 2, 4 or 8 battery group configurations
- Hot-swappable modules
- N+1 redundancy option
3.45 MW PCS
1500Vdc- 16 x 215kW PCS modules
- 1500Vdc battery interface
- IP66 outdoor rated
- Scalable to 100MW+
Modules: PCS, DC/DC, STS and EMS
Every cabinet is assembled from these field-replaceable modules.
30kW PCS Module
Compact bidirectional DC/AC module with built-in static transfer switch for on/off-grid transfer.
105/125kW PCS Module
Mid-range power conversion module. Bidirectional operation for charging and discharging battery systems at high efficiency.
215kW PCS Module
High-power module for utility-scale 1500Vdc systems. Designed for the 3.45MW cabinet and large-scale BESS deployments.
50/63kW DC/DC Module
Maximum power point tracking for solar inputs and battery voltage boosting. Used in hybrid PV+storage cabinets.
200/500kW STS
Transfers from on-grid to off-grid in under 20 ms, so the load stays supplied during a grid disturbance.
EMS
Real-time control of peak shaving, load shifting and grid interaction.
Efficiency, Transfer Time, Redundancy and Protection Class
Values from the specification table.
High Efficiency >98%
IGBT topology with peak conversion efficiency above 98%.
Fast Grid Transfer <20ms
The integrated STS switches from on-grid to off-grid in under 20 ms. The load stays supplied during a grid fault or blackout.
Hot-Swappable Modules
Individual PCS modules are replaced without shutting down the cabinet. With the N+1 option the cabinet keeps running during maintenance.
IP54 / IP66 Protection
IP54 (compact) or IP66 (utility) enclosures for outdoor installation. Corrosion-resistant materials and active thermal management.
Integrated EMS & Monitoring
Built-in EMS with real-time monitoring, SCADA integration, Modbus TCP/RTU and remote diagnostics.
PCS Key Parameters
Specifications across the Forte PCS range.
| Parameter | Specification |
|---|---|
| Product | Forte PCS — Power Conversion System |
| Topology | Bidirectional DC/AC (battery ↔ grid) |
| Cabinet range | 105kW · 125kW · 250kW · 500kW · 1MW · 3.45MW |
| PCS module sizes | 30kW · 105kW · 125kW · 215kW |
| DC/DC module sizes | 50kW · 63kW (MPPT / voltage boosting) |
| Battery voltage (standard) | 250V – 750V DC |
| Battery voltage (utility) | Up to 1500Vdc |
| AC output voltage | 380V / 400V / 480V (configurable) |
| Frequency | 50 / 60 Hz |
| Peak efficiency | >98% |
| Grid transfer time | <20 ms (on/off-grid via STS) |
| STS capacity | 200kW / 500kW Static Transfer Switch |
| Solar input (hybrid) | 4 × 50kW MPPT (DC-coupled) |
| Protection class | IP54 (compact) / IP66 (utility) |
| Cooling | Forced air / liquid cooling (model dependent) |
| Communication | Modbus TCP/RTU, CAN, Ethernet, SCADA |
| EMS | Integrated energy management system |
| Scalability | Modular — scalable to 100MW+ |
| Operating temperature | -30°C to +55°C |
| Certifications | CE, IEC 62477, IEC 62109, IEC 61000 |
Send your battery capacity and grid connection data. We configure the PCS and quote it.
Battery voltage, energy capacity and the AC connection point are enough to start. There is no cost before an order.
Technical documents for this product. Ask for a document still in preparation and we will send it as soon as it is ready.
Related products and services
Request a Quote — PCS
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