Hybrid Inverter

The Hybrid Inverter series combines solar MPPT charging, battery management, and grid-tie or off-grid AC output in a single unit. SunWell's models cover small off-grid setups through larger residential and light-commercial systems, all delivering pure sine wave output. They suit homes and small businesses that want one device to manage solar, storage, and backup without separate charge controllers and inverters.

Selection Guide

Hybrid inverters combine solar MPPT charging, battery management, and grid-tied or off-grid AC output in one unit. The range lists five hybrid inverters from 1.5 kW to 12 kW: a 1.5 kW 12 V off-grid model and 4.0 kW, 5.5 kW, 6.5 kW, and 12.0 kW 24/48 V hybrid models. Start by matching the inverter power to your peak load, not just your solar array size. A 5 kW inverter can run most household essentials, while a 12 kW unit supports larger homes with air conditioning or pumps. Battery voltage must match the inverter: 12 V for the 1.5 kW model, 24 V for the 4.0/5.5 kW models, and 48 V for the 6.5/12 kW models. The range lists lithium and lead-acid compatibility, so confirm your battery chemistry is supported. MPPT input ranges vary from 17 V up to 500 V open circuit, which determines how many panels you can string. Surge power ranges from 2.4 kVA on the 1.5 kW unit to 24 kVA on the 12 kW unit, which matters for motor starting. All five models output pure sine wave and carry IP21, so they are indoor units. Communication includes RS232, RS485, USB, and CAN on most models, with the 1.5 kW unit offering a local LCD only.

AC coupling and generator input expand what a hybrid inverter can do. Some models allow an external AC generator or grid connection to charge the battery when solar is unavailable, which is valuable in areas with unreliable grids. AC coupling lets you add a second existing solar inverter without replacing it. When evaluating models, check the no-load consumption; a high idle draw can drain the battery overnight. Cooling is usually fan-based and IP21-rated, so install the unit in a clean, dry room and clean the intake filters periodically. Firmware updates can add features over time, so choose a supplier that provides downloadable updates or remote support.

Frequently Asked Questions

How do I size a hybrid inverter for my home?

Size the inverter for the highest simultaneous wattage of the loads you want to run, plus motor-starting surge. A typical home runs comfortably on a 5 kW hybrid inverter, while homes with multiple air conditioners or pumps need 6.5 kW to 12 kW. Solar array size is separate and should match the MPPT current and voltage limits.

Can I use a hybrid inverter without solar panels?

Yes, most hybrid inverters can charge the battery from the grid and provide backup power even if no solar array is connected. This is useful where panels are not allowed or will be added later, but you lose the energy-cost savings of solar self-consumption.

What battery voltage do I need?

Match the battery voltage to the inverter. The 1.5 kW model uses 12 V, the 4.0 kW and 5.5 kW models use 24 V, and the 6.5 kW and 12 kW models use 48 V. Using the wrong voltage will prevent operation and may damage the inverter or battery.

How many solar panels can I connect to the MPPT?

The number of panels is limited by the MPPT voltage range and maximum PV open-circuit voltage, not by inverter power alone. For example, a 500 V maximum input supports longer strings, while a 115 V input limits you to one or two small panels in series. Always check the inverter datasheet before designing strings.

Can these inverters run pumps and air conditioners?

Yes, but verify surge power. Motors can draw 3× to 7× their running wattage for a few seconds. The range shows surge ratings from 2.4 kVA up to 24 kVA; choose an inverter whose surge rating comfortably exceeds your largest motor’s locked-rotor current.

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