AMPROTEQBidirectional power conversion systems charge the battery from the grid or from solar and return the energy as grid-quality AC. In an AC integrated system the PCS ships inside the container. A DC block takes its conversion separately: modular string PCS, or a complete APEX MV skid.
The battery is the same in both. What differs is where its DC is turned into AC, and that sets the voltage at which a system meets your site.
Conversion is built from modules that parallel to the rating the duty needs. A module fault costs one module of capacity and minutes of technician time, not a crane and a shutdown. Both families answer to Solaris™.
The converter module inside the AC integrated systems. Modules parallel onto the container’s 400 V output and are commissioned with the battery as one tested unit.
One bidirectional converter per battery string at up to 1 500 V DC. Modules parallel into groups and the groups onto a 690 V bus, at low voltage or on an APEX skid.
Every battery system has a matched converter. The AC integrated systems carry theirs inside; each DC block pairs with string PCS or an MV skid, sized to the duty rather than rounded up to the nearest catalogue item.
| System | Energy | Converter at 2 h | Configuration | Grid interface |
|---|---|---|---|---|
| AC integrated systems · PCS inside | ||||
| A1000 | 1.00 MWh | 500 kW | 4 × 125 kW, integrated | 400 V 3P4W |
| A2000 | 2.00 MWh | 1 000 kW | 8 × 125 kW, integrated (500 kW build: 4 ×) | 400 V 3P4W |
| DC blocks · conversion supplied separately | ||||
| A3000 | 3.00 MWh | 1 500 kW | 215 kW string PCS | LV or MV |
| A4000 | 4.00 MWh | 2 000 kW | 215 kW string PCS | 11 / 22 kV via MV skid |
| A5000 | 5.00 MWh | 2 500 kW | 12 × 215 kW, two groups | 10–35 kV via APEX X2500 |
| A6250 | 6.25 MWh | 3 125 kW | 215 kW string PCS | 11 / 22 / 33 kV via MV skid |
Hot-swappable conversion modules parallel to the rating you need. A module fault costs one block of capacity and minutes of technician time — not a crane and a shutdown.
Full P/Q control across the capability curve, power factor adjustable −1 to +1, THDi below 3% at rated power. Reactive support available even when the battery is idle.
Grid-forming firmware provides synthetic inertia and voltage support on weak networks, with sub-10 ms transfer to island mode and battery-led black start where required.
The point of connection is the utility’s; the interface is ours: grid-code studies, reactive capability, ride-through and the connection application, to NRS 097-2-1 and the SA grid connection code.
Twelve 215 kW converters, an oil-immersed step-up and fused MV switching on one 20 ft skid at 10 – 35 kV. Factory-integrated and tested before dispatch, so site work is placement and terminations. The APEX →
Integrated static transfer switch for sites that must ride through a network event. Sub-10 ms transfer to island mode, with battery-led black start where the site has no other source.
| Conversion & grid | |
|---|---|
| Grid modes | On-grid / off-grid / hybrid |
| Transfer time (STS) | < 10 ms |
| Power factor | −1 to +1, four-quadrant |
| Current distortion | THDi < 3% at rated power |
| LV output | 400 V 3P4W (AC integrated) · 690 V (string PCS) |
| MV output | 10 – 35 kV via APEX X2500 or MV skid |
| Communication | RS-485 / CAN / Ethernet · Solaris™ EMS |
| 215 kW PCS module · tested to | |
|---|---|
| Safety | EN 62109 · IEC 62477 |
| EMC | EN IEC 61000 · EN 62920 |
| South Africa | NRS 097-2-1 |
| Europe | EN 50549-1 / -2 · VDE-AR-N 4110 · NC RfG |
| United Kingdom | G99 · G100 |
| Other | IEC 61727 · IEC 62116 · FD C11-519-12 · SunSpec |
Certificates apply to the 215 kW PCS module. Final ratings and the protection scheme are fixed in the project technical agreement.