With traditional microinverters, any excess solar energy may be wasted when there is no load consuming it. SigenMate 2700 Ultra connects the battery on the DC side, so even when there is no load on the AC side, surplus PV energy can first be stored in the battery and then accurately released when there is demand later. This significantly improves solar energy utilization and helps reduce dependence on expensive grid electricity, directly supporting electricity cost savings.

Yes. Even without solar power, SigenMate can still help optimize electricity costs through time-of-use energy management. In areas with dynamic electricity tariffs or peak/off-peak price differences, SigenMate can charge the battery from the grid during low-price periods. During high-price periods, it can then prioritize using the lower-cost energy stored in the battery, enabling “buy low, use high” electricity cost optimization.

To use this function, enable TOU Mode or AI Mode in the app. The system will automatically track electricity price trends and perform precise scheduling to help reduce your electricity bill.

After AI Mode is enabled, the system runs in maximum self-consumption mode for the first 7 days to record and learn the user’s household energy consumption patterns. After that, it combines actual home consumption data, PV generation forecasts, weather data, and dynamic electricity tariffs to automatically create and optimize charging and discharging strategies.

This enables “buy low, sell high” energy optimization while reducing electricity costs and maximizing solar self-consumption. The system updates its optimization strategy every 60 minutes and executes energy storage operations every 15 minutes, ensuring that it continuously adapts to the latest energy conditions.

The usage logic is the same as with a single unit and depends on the operating mode selected in the app. Multiple SigenMate units will operate as one integrated system and automatically share the charging and discharging power.

Yes. You can connect your existing inverter to SigenMate, provided that it is a plug-in device.

Yes.

Yes. Third-party microinverters are supported. Please connect them to the backup port.

Yes. The following devices are currently compatible:

• Shelly smart devices
• HomeWizard P1 Meter
• EcoTracker IR Meter

Absolutely not. Do not connect two or more PV modules in series, as this may cause the input voltage to exceed the 60 V safety limit and damage the device.

No. They can be connected normally, with no specific order required.

Yes, SigenMate supports microinverter connection. Due to regulatory limitations, it is recommended to connect only one microinverter, and its power should not exceed the legal limit for plug-in devices, for example 800 W.

The microinverter can be connected to any AC socket. Both Sigenergy’s own microinverters and third-party microinverters are supported.

Yes. However, if a third-party microinverter is connected and the load is a critical load that must not lose power, it is recommended to add a smart plug at the third-party microinverter connection point. This allows the system to safely control the microinverter during a grid outage and helps prevent critical loads from accidentally losing power when the microinverter starts or stops.

If you use a Sigenergy microinverter, no additional smart plug is required, as the system can automatically coordinate and control the connection.

The maximum power of each MPPT port is 1000 W. You can connect PV modules that exceed the rated power.

The maximum PV charging power depends on the number of battery packs connected:

• Main unit only: maximum 1.8 kW
• With 1 external battery pack: maximum 3.6 kW
• With 2 or more external battery packs: maximum 4.0 kW

Yes. Before adding or removing external battery packs, the system must be powered off and all external terminals must be disconnected. Do not perform this operation while the system is live.

The system supports using new and old battery packs together in the same system.

The power limit depends on whether the system is operating in grid-connected mode or off-grid backup mode.

• When SigenMate is grid-connected, the two backup ports support a combined maximum power of 3600 W. However, if you plan to connect an appliance above 2800 W to the backup output, please make sure that your home wiring can support the load and purchase a higher-power AC grid cable through official channels.
• During grid-to-off-grid switching, the maximum off-grid output power depends on the number of SigenMate units connected in parallel. One SigenMate supports up to 1400 W off-grid output power; two SigenMate units connected in parallel with the parallel cable support up to 2800 W; three SigenMate units connected in parallel with the parallel cable support up to 3600 W.

Whether the device can be installed by the user depends on local laws and regulations. SigenMate 2700 Ultra is a plug-and-play product. In countries where such devices are allowed to be connected to the grid, such as Germany, you may complete the physical installation and power-on process yourself.

However, grid regulations vary by country. Before purchasing or installing the device, please check the specific regulations in your country or contact our local service team.

No. When the device is powered on for the first time, it must be set up together with the mySigen App.

No. Ethernet cable connection is not supported.

Yes. SigenMate has an IP66 protection rating and can withstand normal rain exposure.

Yes. SigenMate is equipped with a heating film, which can heat the battery in low-temperature environments down to -20°C to ensure normal operation.

It is normal for the device itself to generate heat during operation. However, if the wiring terminals and cables heat up rapidly, this requires immediate attention. It is usually caused by a loose connection, poor contact, or an electrical short circuit, and should be checked promptly.

Please store the packaged device indoors at a temperature between -25°C and 65°C. To prevent damage caused by excessive battery self-discharge, it is strongly recommended to ensure that the battery level is not lower than 30% before storage, and to perform a routine charge and discharge maintenance cycle every six months during storage.

• Do not squeeze, impact, or hit the device.
• Do not excessively bend or pull the wiring terminals and cables.
• Do not cover the device surface with any objects. Adequate clearance must be maintained for proper heat dissipation.

Please make sure that the AC power socket is properly grounded. Proper grounding is essential for safe system operation and helps prevent the risk of electric shock.

Once the off-grid backup function is activated, the device will automatically switch during a power outage and continue supplying power to the loads connected to the two backup ports. No additional operation is required, and the connected loads will remain running.

Yes. In grid-connected mode, the off-grid output port can still normally supply power to connected household appliances.

Considering the relatively low power of SigenMate, charging an electric vehicle may take a long time. You may use SigenMate as an emergency power source for limited EV charging.

This depends on whether you have installed a smart meter and which operating mode you have selected in the mySigen App. Based on your settings, the system will intelligently decide whether to prioritize storing excess energy or exporting it to the grid.

Yes. When used together with a smart meter, you can set the grid export power to 0 in the mySigen App. The device will then prevent any electricity from being exported to the grid.

This depends on your local subsidy policy. We recommend contacting your local grid operator directly for details.