Growatt Launches MINA: A Smart All-in-One Home Energy Storage System for Residential Solar

Growatt is expanding its residential energy storage portfolio with MINA, a new single-phase all-in-one energy storage system designed to combine solar generation, battery storage, backup power and intelligent energy management in one integrated platform.

The new Growatt MINA All-In-One ESS covers inverter power classes from 3 to 10 kW and battery capacities from 5 to 30 kWh, giving installers a flexible platform for residential solar-plus-storage projects with very different consumption profiles.

Rather than treating the hybrid inverter, battery and energy management system as separate components, Growatt has designed MINA around a more integrated approach. The objective is straightforward: simplify installation for professionals while giving homeowners greater control over how and when their solar energy is used.

One System for Solar, Battery Storage and Backup

Residential solar is changing.

For many homeowners, simply producing electricity during daylight hours is no longer enough. Solar production may peak around midday while electricity consumption rises later in the afternoon and evening. Time-of-use tariffs and changing export conditions can make that mismatch increasingly important.

MINA is designed to store surplus solar generation and make it available later — during the evening, overnight, at higher-price periods or when backup power is required. Growatt combines hybrid inverter functionality, modular batteries, monitoring and backup operation in a single residential ESS platform.

For installers, the integrated architecture also reduces the number of separate products that must be combined during system design.

3–10 kW Power and 5–30 kWh Battery Capacity

The European MINA platform covers 3–10 kW single-phase inverter power and provides battery configurations from 5 kWh to 30 kWh.

That range allows the same product family to address very different residential applications.

A smaller property with moderate electricity consumption may only need a 5 or 10 kWh battery. A larger home with an EV, heat pump, home office or greater evening demand may require substantially more storage.

The ability to scale towards 30 kWh means the installer can design around the customer’s actual consumption rather than forcing every project into the same fixed battery size.

Battery Optimiser Technology Makes Future Expansion More Flexible

One of the most interesting elements of MINA is Growatt’s battery optimiser technology.

In conventional modular battery systems, differences between individual modules can affect the overall battery stack. Modules installed at different times may have different states of charge, usage histories or ageing characteristics.

Growatt says MINA’s optimiser allows individual battery modules to be managed more intelligently, reducing the impact of module mismatch and supporting more flexible battery expansion over time.

This is particularly relevant for customers who do not want to install their maximum future storage capacity immediately.

A homeowner may start with a smaller system today and increase battery capacity later after adding an electric vehicle, heat pump or other major electrical load. The battery optimiser architecture is intended to make this kind of staged expansion easier to manage.

Up to 200% DC/AC Ratio

MINA is also designed for substantial PV capacity relative to inverter output.

Growatt specifies a DC/AC ratio of up to 2.0, allowing the photovoltaic array to be significantly oversized where the project design and electrical limits permit it.

This can be valuable in residential installations where the objective is not simply to maximise instantaneous AC export.

With battery storage available, additional PV capacity can help provide more energy during weaker irradiation conditions, increase battery charging opportunities and improve production during mornings, afternoons and winter periods.

The exact PV design must, of course, remain within the electrical limits of the selected MINA configuration and solar modules.

Three MPPTs for More Flexible Rooftop Design

Another notable feature is the inclusion of three MPPT trackers.

For installers working with complex residential roofs, multiple MPPTs provide additional flexibility when solar panels are installed across different roof orientations or areas with different production characteristics.

Growatt also specifies 18 A string current, helping the system work with modern higher-current PV modules.

This is increasingly relevant as high-power residential solar panels become common and inverter input-current capability becomes an important compatibility criterion.

63 A Whole-Home Backup

Backup capability is one of MINA’s headline features.

Growatt specifies 63 A whole-home backup, positioning the system for applications where homeowners want considerably more than emergency support for a few low-power circuits.

Growatt says MINA also provides fast switching during grid outages and can maintain selected important household loads such as lighting, refrigeration, Wi-Fi and home-office equipment.

Actual backup capability will always depend on the inverter model, battery capacity, connected load and electrical design. A 30 kWh battery does not automatically mean every appliance can operate simultaneously during an outage.

Backup systems therefore still require careful load analysis and correct installer configuration.

25 kW V2G DC Charger Support

Perhaps one of the most forward-looking specifications is support for a 25 kW V2G DC charger.

Vehicle-to-grid and vehicle-to-home technologies could eventually make the electric vehicle another controllable energy resource within the building.

Instead of the EV only consuming electricity, compatible systems can potentially allow energy stored in the vehicle battery to support the home or participate in wider energy-management strategies.

Availability and actual V2G operation will depend on compatible vehicles, chargers, regulations and local market support. Nevertheless, its inclusion shows how Growatt is designing MINA around a broader home-energy ecosystem rather than only traditional PV and stationary battery storage.

VPP Ready and AI Smart Mode

Growatt also lists MINA as VPP ready and equipped with an AI smart mode.

These functions reflect a wider change in residential energy storage.

A battery does not necessarily need to operate according to a simple rule such as “charge from solar and discharge at night”.

Increasingly, energy systems may need to consider solar forecasts, consumption patterns, tariff periods, battery state of charge and potentially external grid or virtual power plant signals.

Growatt specifically highlights time-of-use management and intelligent monitoring as part of MINA’s design for markets with changing electricity prices and solar export rules.

For European households exposed to increasingly dynamic electricity tariffs, this kind of energy management may become as important as battery capacity itself.

Fast, Wire-Free Stacking Designed for Installers

MINA is not only designed around homeowner functionality. Installation efficiency is clearly a major part of the product concept.

Growatt specifies a self-aligning connector and claims approximately 10-minute wire-free stacking, followed by around 10 minutes for system setup and diagnosis under its installation concept.

Reducing internal cabling can help simplify mechanical assembly and reduce the possibility of connection errors.

That does not mean the entire solar-plus-storage installation can be completed in 20 minutes. AC and DC wiring, protection equipment, PV connections, grid integration, metering and commissioning still require normal professional installation.

But simplifying the battery and inverter assembly can reduce time spent on one of the more complex parts of a residential storage project.

Integrated Safety: AFCI, Type II SPD and Aerosol Protection

Growatt has also built several protective functions directly into MINA.

The product page specifies Type II surge protection on both AC and DC sides, AFCI protection, and integrated aerosol protection and battery heating.

Integrated protection can reduce the number of separate functions that must be added around the core system, although the complete installation must still meet all local electrical and fire-safety requirements.

The built-in heaters are also relevant for battery performance in colder European climates, particularly where energy storage is installed in garages or other areas that may experience low winter temperatures.

Real-Time Monitoring for Installers and Homeowners

MINA connects with Growatt’s monitoring ecosystem, giving both installers and homeowners access to information such as solar production, battery status, electricity consumption and overall system performance.

Monitoring is increasingly important because modern energy storage is not a passive device.

Users want to know whether the battery is charging from solar, whether electricity is being imported or exported, and how much stored energy remains available.

For installers, remote diagnostics can also reduce unnecessary site visits and make fault investigation more efficient.

Why the All-in-One Approach Matters

Traditional residential energy storage often involves several visibly separate components: inverter, battery modules, battery management equipment, switching hardware and communications.

An all-in-one system attempts to make those elements operate as a more coordinated product.

That has three potential advantages.

First, the installation can be visually cleaner.

Second, the installer has fewer interfaces and compatibility questions to manage.

Third, future firmware, monitoring and energy-management functions can be developed around a known combination of hardware.

This does not mean every project should automatically use an all-in-one ESS. Separate inverter and battery systems can still offer benefits in projects requiring unusual configurations.

But for mainstream residential installations, simplicity is becoming an increasingly valuable feature.

MINA Fits Growatt’s Wider Solar-Plus-Storage Strategy

The launch also fits Growatt’s broader move towards integrated residential energy systems.

The company now operates across solar inverters, battery storage, EV charging and intelligent energy management. MINA brings several of those functions together in a platform explicitly designed around residential solar.

The timing is notable as well. Growatt recently reported that S&P Global Commodity Insights ranked the company among the global Top 3 hybrid inverter suppliers by 2025 shipment volume.

MINA therefore arrives as Growatt expands not simply its hybrid inverter portfolio but its complete solar-plus-storage ecosystem.

What Professional Installers Should Check

The headline specifications are attractive, but procurement should still begin with the project.

Installers should confirm the exact MINA power model, PV module configuration, required battery capacity, backup load, grid connection and local certification requirements.

For projects expecting future battery expansion, the initial system should also be designed with that expansion in mind rather than considering only today’s consumption.

The same applies to V2G and advanced energy-management functions. Their real-world availability can depend on local software releases, compatible EVs, electricity tariffs and national market rules.

A technically correct quotation should therefore distinguish between hardware capability and functions that are actually available to the customer in a specific market.

A New Generation of Residential Energy Storage

The Growatt MINA All-In-One ESS represents where residential solar is heading.

Instead of building a system around separate products that simply happen to communicate with one another, manufacturers are increasingly integrating solar conversion, battery storage, backup, monitoring and intelligent energy management into a single platform.

With 3–10 kW power, 5–30 kWh storage, three MPPTs, up to 200% DC/AC ratio, 63 A whole-home backup, battery optimiser technology, VPP readiness and support for a 25 kW V2G DC charger, MINA is clearly positioned as more than a conventional hybrid inverter with a battery attached.

For installers, the strongest proposition may be the combination of scalability and simpler installation. For homeowners, it is the ability to store, manage and use solar energy according to changing consumption and electricity costs.

For Solar&Solar Wholesale, MINA also represents a natural extension of Growatt’s rapidly expanding residential storage portfolio.

Contact us for Growatt MINA B2B pricing, European availability, project configuration and complete solar-plus-storage procurement.

What is Growatt MINA?

Growatt MINA is a single-phase all-in-one residential energy storage system integrating hybrid inverter functionality, modular battery storage, backup capability and intelligent energy management.

What power range does Growatt MINA offer?

The European MINA platform covers 3 to 10 kW.

How much battery storage can Growatt MINA provide?

MINA supports battery capacities from 5 to 30 kWh, depending on system configuration.

How many MPPTs does Growatt MINA have?

Growatt specifies three MPPT trackers, giving installers additional flexibility for residential roofs with multiple orientations.

Does Growatt MINA provide backup power?

Yes. Growatt specifies 63 A whole-home backup capability and describes the system as supporting fast backup switching during grid outages.

Can the MINA battery be expanded later?

Growatt says its battery optimiser technology helps manage module differences and supports more flexible battery expansion as household energy requirements change.

Is Growatt MINA VPP ready?

Yes. Growatt lists MINA as VPP ready and equipped with an AI smart operating mode.

Does MINA support V2G?

Growatt lists support for a 25 kW V2G DC charger among the platform’s innovation features. Actual use depends on compatible vehicles, charging equipment and local market conditions.