PCS: 100 kW or 125 kW
Converts power between the battery’s DC side and the AC system. Specify your required power and intended on-grid or off-grid operation.
DEYE PCS · BATTERY STORAGE · OPTIONAL SOLAR INPUT
A PCS bundle built around your project.
Start with a 100 kW or 125 kW power conversion system and BOS-B Pro battery storage. Add MPPT and STS modules to suit the agreed system configuration.
Equipment supply only. Pricing, availability, exact battery revision and compatibility are confirmed on quotation. Installation and collection are arranged separately.
Four parts to discuss in your enquiry
BOS-B Pro battery storage
Battery quantity and capacity are selected for the proposed system. The published figures below refer specifically to BOS-B Pro-A3.
MPPT: solar input option
The separate MPPT module handles PV input. Ask for it when solar panels form part of your PCS project.
STS: switching option
The SUN-STS500L handles grid, load and generator power paths in supported configurations. Its inclusion depends on your required switching arrangement.
Compare the PCS modules
Specification baseline: Deye’s June 2026 solution brochure. Source links accompany each table.
| Parameter | 100 kW PCS | 125 kW PCS |
|---|---|---|
| Model | SUN-100K-PCS01HP3 | SUN-125K-PCS01HP3 |
| Rated AC active power | 100 kW | 125 kW |
| Maximum AC apparent power | 110 kVA | 125 kVA |
| Battery voltage range | 630–1000 V | 630–1000 V |
| Maximum battery charge / discharge current | 175 A / 175 A | 200 A / 200 A |
| Maximum efficiency | 98.5% | 98.5% |
| PCS module ingress protection | IP65 | IP65 |
| Continuous off-grid load: 70% guidance | Up to 70 kW | Up to 87.5 kW |
Read the PCS datasheet (PDF) ↗
The 70% row is calculated from the brochure’s off-grid guidance. IP65 applies to the PCS module; it does not describe the complete battery and STS installation.
Solar input: the MPPT module
| Model | SUN-MPPT-L01-EU-AM8 |
|---|---|
| Maximum PV access power | 200 kW |
| Maximum PV input power | 160 kW |
| MPPT trackers | 8 |
| Maximum operating current per tracker | 40 A |
| Maximum short-circuit current per tracker | 60 A |
| Maximum PV input voltage | 800 V |
| Start-up voltage | 200 V |
| MPPT voltage range | 180–750 V |
| Full-load MPPT voltage range | 450–750 V |
| DC output voltage / maximum current | 630–1000 V / 200 A |
| MPPT module ingress protection | IP65 |
Battery configuration matters
The brochure lists 16.08 kWh nominal energy per module. Its maximum 16-module system is listed at 257.23 kWh nominal and 231.51 kWh usable energy. These are published system figures, not a fixed bundle size or a backup-duration promise.
Although the battery family lists 5–16 modules in series, the PCS matching rules are narrower:
| Equipment | Operating mode | Modules in series | MPPT open-circuit voltage limit |
|---|---|---|---|
| PCS without MPPT | On-grid | 14–16 | Not applicable |
| PCS without MPPT | Off-grid | 15–16 | Not applicable |
| PCS + MPPT | On-grid or off-grid | 16 | ≤800 V |
| PCS + MPPT | On-grid or off-grid | 15 | ≤750 V |
| PCS + MPPT | On-grid only | 14 | ≤700 V |
Read the battery and matching table (PDF) ↗
These limits do not replace a system design. PV voltage must be assessed for the site conditions. BOS-B Pro-A3 is rated IP20; do not assume the PCS module’s IP65 rating applies to the battery system or to other BOS-B Pro revisions.
Switching with SUN-STS500L
- Grid, load and generator paths are each rated for 500 kW.
- The brochure states an on-grid/off-grid switching time below 10 ms.
- One STS supports five 100 kW PCS units or four 125 kW PCS units.
- The brochure allows up to five STS modules in parallel, subject to the supported system topology.
- The STS module is rated IP20.
Parallel capacity depends on the connection mode. The January manual states a 700 kW off-grid load limit for STS parallel “Load” mode (printed page 80 / PDF page 82). Parallel capability is not a promise that every topology supports the same off-grid load.
Documents for your project team
Use the documentation for the exact supplied revision. The documents differ in some specifications; the quotation should identify the proposed models and applicable documentation.
YOUR NEXT STEP
Tell us what your PCS project needs.
Include your location, 100 kW or 125 kW preference, on-grid or off-grid requirements, continuous and starting loads, required battery capacity or backup duration, solar input needs and timeframe. “Please advise” is welcome.
Your quote page will select the PCS range. Exact models, quantities, accessories, pricing and availability are confirmed before ordering.