01
On-grid inverter
PV → AC → Grid / loads
Converts solar DC to grid-synchronised AC. A conventional grid-following unit needs a live grid and does not by itself provide outage backup.
rove on, power on
INVERTER & PCS
The right conversion.
For the whole system.
From rooftop solar to a battery microgrid, select the operating mode, electrical interfaces and control architecture together.
Explore system architectureSTART WITH THE OPERATING ROLE
Inverter or PCS?
Then, which architecture?
Operating mode and coupling method are separate decisions. We work through both.
02
Off-grid inverter
PV / battery → Stand-alone loads
Creates an independent AC supply using a suitable battery and charging arrangement. Generator charging and parallel operation depend on the selected model.
03
Hybrid inverter
PV + battery + grid / backup
Coordinates solar, a supported battery and grid / backup circuits. AC coupling, generator input and transfer capability are checked model by model.
BIDIRECTIONAL BATTERY POWER CONVERSION
PCS: two architectures.
Charging and discharging between the battery and AC system. Grid-forming, grid-following and transfer requirements are part of selection.
String / distributed PCS
Multiple conversion units, often assigned to individual battery racks or clusters. Review independent control, fault isolation and parallel coordination.
Centralized PCS
Battery strings feed a shared conversion block. Review DC combining, protection, current sharing and the effect of a converter outage.
EXPLORE THE ENERGY PATH
Choose a setup. See the connections.
Change the operating mode, PV coupling and generator option to see how the architecture changes.
Operating mode
PV connection
Grid-connected storage
Battery energy passes through the PCS to the AC bus. The EMS schedules operation within the PCS, battery and grid-connection limits.
Configuration checks
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Grid-connected storage · AC coupled PV
PV has its own inverter. Solar and battery power meet on the AC bus, a useful arrangement when retaining a compatible existing solar plant.
Configuration checks
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Grid-connected storage · DC coupled PV
PV connects through an MPPT / DC–DC stage to the battery-side DC bus. The bidirectional conversion stage exchanges power with the AC system.
Configuration checks
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Stand-alone energy system · AC coupled PV
PV has its own inverter. Solar and battery power meet on the AC bus, a useful arrangement when retaining a compatible existing solar plant.
Configuration checks
The PCS or inverter must establish voltage and frequency. PV output needs compatible curtailment and coordination with battery SOC and load changes.
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Stand-alone energy system · AC coupled PV · Diesel backup
PV has its own inverter. Solar and battery power meet on the AC bus, a useful arrangement when retaining a compatible existing solar plant.
Configuration checks
The PCS or inverter must establish voltage and frequency. PV output needs compatible curtailment and coordination with battery SOC and load changes.
Generator start / stop, charging limits, minimum loading and reverse-power protection are coordinated. A multi-function inverter port may not support generator and AC-coupled PV at the same time.
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Stand-alone energy system · DC coupled PV
PV connects through an MPPT / DC–DC stage to the battery-side DC bus. The bidirectional conversion stage exchanges power with the AC system.
Configuration checks
The PCS or inverter must establish voltage and frequency. PV output needs compatible curtailment and coordination with battery SOC and load changes.
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Stand-alone energy system · DC coupled PV · Diesel backup
PV connects through an MPPT / DC–DC stage to the battery-side DC bus. The bidirectional conversion stage exchanges power with the AC system.
Configuration checks
The PCS or inverter must establish voltage and frequency. PV output needs compatible curtailment and coordination with battery SOC and load changes.
Generator start / stop, charging limits, minimum loading and reverse-power protection are coordinated. A multi-function inverter port may not support generator and AC-coupled PV at the same time.
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Grid-connected with an islanded backup circuit · AC coupled PV
PV has its own inverter. Solar and battery power meet on the AC bus, a useful arrangement when retaining a compatible existing solar plant.
Configuration checks
The transfer / isolation arrangement separates the backup circuit from the grid during an outage. Transfer time and critical-load capacity are selected for the application.
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Grid-connected with an islanded backup circuit · AC coupled PV · Diesel backup
PV has its own inverter. Solar and battery power meet on the AC bus, a useful arrangement when retaining a compatible existing solar plant.
Configuration checks
The transfer / isolation arrangement separates the backup circuit from the grid during an outage. Transfer time and critical-load capacity are selected for the application.
Generator start / stop, charging limits, minimum loading and reverse-power protection are coordinated. A multi-function inverter port may not support generator and AC-coupled PV at the same time.
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Grid-connected with an islanded backup circuit · DC coupled PV
PV connects through an MPPT / DC–DC stage to the battery-side DC bus. The bidirectional conversion stage exchanges power with the AC system.
Configuration checks
The transfer / isolation arrangement separates the backup circuit from the grid during an outage. Transfer time and critical-load capacity are selected for the application.
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
Grid-connected with an islanded backup circuit · DC coupled PV · Diesel backup
PV connects through an MPPT / DC–DC stage to the battery-side DC bus. The bidirectional conversion stage exchanges power with the AC system.
Configuration checks
The transfer / isolation arrangement separates the backup circuit from the grid during an outage. Transfer time and critical-load capacity are selected for the application.
Generator start / stop, charging limits, minimum loading and reverse-power protection are coordinated. A multi-function inverter port may not support generator and AC-coupled PV at the same time.
EMS coordinates operation; BMS protects and reports battery limits. Confirm CAN / RS485 / LAN protocols, firmware and tested model compatibility.
AC powerDC powerControl / communication
Conceptual architecture. Final protection, transfer, communication and grid requirements are confirmed for the selected equipment and site.
FROM A SITE BRIEF TO A COORDINATED CONFIGURATION
We work through
the interfaces for you.
A clear equipment list, compatible interfaces and an agreed control sequence reduce decisions left to the installation stage.
Load & backup
Continuous kW / kVA, motor starting loads, phase imbalance, critical circuits, autonomy and acceptable transfer time.
PV & coupling
New or existing array, string voltage and current, MPPT range, AC-coupled inverter control and export limits.
Battery interface
Full battery voltage window, charge / discharge current, C-rate, usable energy, BMS protocol and model compatibility.
Generator & parallel operation
Generator rating, start signal, minimum loading, reverse-power protection, inverter port allocation and supported parallel arrangements.
Grid & controls
AC voltage, phases, frequency, connection requirements, metering, EMS dispatch, tariffs and requested operating priorities.
Site & future expansion
Temperature, altitude, enclosure rating, ventilation, access, spare capacity, expansion stages and commissioning scope.
01 · Define the operating requirement02 · Coordinate equipment & interfaces03 · Confirm the configuration & commissioning sequence
INVERTER PARTNERS
Choice, coordinated.
YOUR PROJECT. OUR NEXT CONVERSATION.
Understand the connections.
Let us configure the system.
Explore the technical options here, then bring your application to System Design for a coordinated equipment proposal.