Plug & Play
Battery storage designed for straightforward integration
Zwei Produktwege
Direct PV connection or AC-coupled retrofit
Modularly expandable
Adapt storage capacity flexibly
Smart vernetzt
App, compatible energy meters and load control
*Features, connection type, accessories and available functions vary by model and installation.
Home battery storage is most useful when you have energy available at one time – such as solar surplus or lower-cost electricity – and want to use it later when household demand or electricity prices are higher. Three questions help with the first check.
Find the right battery-storage solutionSurplus solar energy or lower-cost grid electricity can be stored and used later when your home needs more energy.
If a meaningful share of your consumption occurs in the evening or overnight, stored energy can be used at exactly those times. Consumption and solar-surplus data help determine an appropriate capacity.
You can connect suitable solar panels directly to the battery system or add AC-coupled battery storage to an existing solar PV system. The right route depends on your current home energy setup.
Whether you want to connect solar panels directly or add battery storage to an existing solar PV system, both routes are possible. The key question is how you want the battery to integrate with your home energy system.
Direct PV + AC Retrofit
Flexible battery storage with direct PV input that can also be integrated into an existing solar PV system through AC coupling.
Direct PV + AC Retrofit
Flexible battery storage with direct PV input that can also be integrated into an existing solar PV system through AC coupling.
AC Retrofit
AC-coupled battery storage for straightforward retrofit to an existing solar PV system – with no direct PV input on the battery.
*Available charging/discharging power depends on operating mode, connection, local requirements and system configuration. Capacity, accessories and product availability can vary by market.
Choose a connection route and see how solar power can be used directly during the day, stored for later and then used in the home in the evening.
Compatible solar panels supply solar energy directly to the Sunpura storage system. After sunset, the solar panels do not generate solar energy.
Solar energy that is not needed immediately is stored for later use. The storage system supplies previously stored energy to the home.
The storage system connects to the home's electrical system through the intended connection. Stored energy is supplied to the home's electrical system through the intended connection.
Stored energy can be used in the home during the evening and at night. The home uses stored energy first; any remaining demand is supplied by the grid.
Solar panels and existing PV components remain part of the existing system. After sunset, the PV installation does not supply solar energy.
The existing PV installation can continue to be used in a compatible configuration. The existing PV components remain unchanged parts of the system.
The storage system connects to the home's electrical system through the intended AC connection. Stored energy is supplied to the home's electrical system through the AC side.
Surplus solar energy can be stored and used in the home later. The home uses stored energy first; any remaining demand is supplied by the grid.
A compatible Sunpura AC storage system is integrated on the AC side. The AC storage system supplies previously stored energy to the home.
*Connection method, energy flow, metering and available functions vary by model, accessories, installation and market.
The right storage capacity mainly depends on how much solar energy is left to store, how much energy you use later in the day and how your needs may change. A larger battery is not automatically the better choice.
Battery storage only makes sense if energy is regularly available to charge it. What matters is not only the size of your PV system, but how much solar energy remains after direct household consumption.
Evening and overnight consumption is especially relevant. If the battery is much larger than typical demand, part of the capacity may regularly remain unused.
An EV, heat pump or other new electrical loads can change your energy demand. That is why future expandability matters as well as today's battery size.
With modular Sunpura systems, you can first expand storage capacity within a single system. If one system is no longer enough, additional complete S2400 systems can also increase available system power.
One system · modularly expandable
S2400 is already a complete battery-storage system. Additional compatible B2400 battery modules can increase storage capacity within that system.
This lets you start with a suitable capacity and add storage later without adding another complete S2400 system at every expansion step.
Additional B2400 modules increase storage capacity, not automatically the supported charge and discharge power of the individual system.
When you move beyond the capacity of one system, additional complete S2400 systems can store more energy and also increase available system power. Unlike adding B2400 battery modules, capacity and power scale together here.*
Without Sunpura Parallel Box
Sunpura Parallel Box
For professionally installed grid-connected systems. Electrical design, commissioning, available power and local grid requirements must be checked for the specific project.
B2400 mainly expands storage capacity within one system. Additional complete S2400 systems expand both capacity and available system power; the Sunpura Parallel Box enables larger grid-connected configurations.
Einzelnes S2400 System
2,4–9,6 kWh Modular erweiterbares SystemUp to 3 S2400 systems
Up to 28.8 kWh · more system power* Up to 3 S2400 systemsWith Sunpura Parallel Box
Up to 57.6 kWh · single-/three-phase Up to 6 S2400 systemsB2400 increases the storage capacity of one system, not its power automatically. With multiple complete S2400 systems, both capacity and available system power can scale. The values shown describe maximum compatible configurations; actual available power and functions depend on connection, accessories, installation and local requirements.*
Sunpura connects solar generation, battery storage and household demand. Depending on the system setup, metering and electricity tariff, energy from solar or the grid can be stored and used later in the home.
Store some of the solar energy your home does not use during the day and use it later.
Depending on the configuration, the battery can also charge from the grid. With a suitable tariff, some electricity use can be shifted to cheaper periods.
With a compatible metering solution, the system can measure household energy flows and control the battery around demand, generation and the selected operating mode.
Store solar energy. Use it later.
Typical daily profile · schematic
Actual financial value depends on factors including generation, consumption, export, tariff, electricity prices, system losses, operating strategy and chosen battery capacity.
Sunpura supports different metering solutions for different meters and electrical installations. They measure household energy flows and provide the data used for monitoring and, where supported by the configuration and services, more responsive battery control.
From metering to energy control
Your meter, phases and electrical installation determine which metering solution suits your home.
Single- or three-phase · one or two measurement channels
Magnetic power supply; plug-in power option may also be available for single-phase configurations.
Depending on the meter and installation, compatible reader solutions or single- and three-phase Smart Meter / CT options with one or two measurement channels may be available. Power supply and installation depend on the chosen configuration.
MonitorControl
Available metering data can help the app, battery and energy management system show household energy flows and control operation around the selected configuration.
In the UK, the metering solution needs to match the electricity meter and electrical installation. Depending on the configuration, single- or three-phase Smart Meter / CT options with one or two measurement channels may be suitable.
Sunpura offers different solutions for existing home energy systems. Your PV system, inverter, electricity meter, electrical installation and intended operating mode determine the right system configuration and installation route.
Your electricity meter, PV system, inverter and existing electrical installation form the basis for choosing the right Sunpura configuration.
Choose storage capacity, expansion options and operating mode to suit your home, energy demand and existing installation.
The right metering and connection solution depends on your electricity meter, phases and existing electrical installation. If work on the household electrical installation is required, it should be carried out by a qualified electrician.
After connection, metering, control and operating mode are configured and checked so the system can respond appropriately to your household energy flows.
Exact compatibility depends on the product, electricity meter, existing system and electrical installation. Check the appropriate configuration for your home before installation.
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Watch the videoTraceable experiences that identify the product model and specific installation scenario.
“I installed the system in the basement. Stacking the modules, plugging it in, downloading the Sunpura app and adjusting the settings was all straightforward and easy to follow. I then connected the P1 meter to my electricity meter, added both devices in the app, installed the updates and the setup was complete. I was unlucky at first because the unit did not work. I contacted customer service by email and the entire conversation went smoothly in Dutch. I received a reply within 24 hours. Customer service could see that the inverter was not receiving power. At first I suspected a faulty mains cable. About a week later, however, I received a completely new inverter including the cable at no charge. After delivery I connected the new cable and everything has worked perfectly since. I did not need the replacement inverter and returned it free of charge. Overall, the service was very pleasant and quick. The maximum depth of discharge is 90%. With a total capacity of 9.6 kWh, that means 8.64 kWh is available before other system losses are considered. Because I do not yet have a dedicated circuit for the system, my discharge power is limited to a maximum of 800 W. If more power is needed, the additional electricity comes from the grid. Charging, on the other hand, is possible at up to 2,400 W in my setup. The system works well and is relatively quiet. As mentioned, I installed it in the basement. The app is fairly simple. It provides the basic settings and around four different operating modes that let me adapt charging and discharging to my needs. That works well for me. When the Dutch net-metering scheme ends on 1 January 2027, I will probably switch to a dynamic electricity tariff. Combined with the Sunpura system, that could be interesting for me. Whether the payback period is 2.2 years, as the website stated, or more like four to five years is not decisive for me. I am happy with my purchase.”
“Delivery arrived five days later than announced. At more than 140 kilograms in this configuration, it is definitely not something you move on your own. Once the battery was in place, though, the frustration was quickly forgotten: the Sunpura S2400 was surprisingly quick to get up and running. Under my covered area next to the workbench, it fits perfectly without getting in the way. The black top also looks clean and modern. Build quality feels solid and the system has been running reliably with my solar panels. What I particularly like is being able to use more of my own generated electricity instead of exporting it for a low return. The smart energy-control connection is another big advantage for me.”
“The battery sits neatly against the wall here and was surprisingly quick to get running through the intended connection. I like how tidy and compact it looks indoors while quietly doing its job.”
“The packaging was a little damp in the car when it arrived because of the rain. Everything inside was well protected and looked fine. The individual modules made unloading more manageable.”
“We have several units lined up neatly along the wall in the utility room. The whole setup looks surprisingly tidy and professional. I especially like the straightforward setup and the added reassurance of the backup function.”
“Installation went smoothly and the system works as intended. The instructions are easy to understand and the app is clear too.”
“The black front panel looks very smart against our dark timber cladding. Setup was quick and the battery has been running quietly and reliably ever since.”
Traceable recognitions and media mentions with a link to the original source.
*Reviews reflect individual experiences. Awards and media mentions apply only to the specific products, models or assessment areas clearly named in the original source.
Selected Sunpura products have a 10-year limited warranty. If you have questions or problems after purchase, you can contact Sunpura directly.
10 JAHRE
Selected Sunpura products have a 10-year limited warranty. Exact coverage and conditions are defined by the applicable warranty terms.
DIRECT
If you have questions or problems after purchase, you can contact Sunpura directly.
SUPPORT
If an issue is confirmed as a warranty case, Sunpura will support the next steps in accordance with the applicable warranty terms.
Warranty coverage and claims handling are governed by the applicable warranty terms.
The official Sunpura store brings together product selection, compatible accessories, direct support and free shipping in one place.
Products, metering solutions and accessories are offered by market and system configuration. This makes it easier to check what fits your existing solar PV, electricity meter and home energy setup.
Orders from the official Sunpura store are delivered with no additional shipping charge.
For questions about product choice, installation, accessories or support after purchase, you can contact Sunpura directly.
Find compatible accessories, metering solutions, expansion options and new system components together in the official Sunpura store.
Prices, product availability and promotions can vary by market and sales channel. Orders from the official Sunpura store include free shipping.
Practical guides to home battery storage, existing solar PV, electricity tariffs, installation and smart energy use.
FeaturedA home battery can make financial sense in the UK, but there is no universal payback period. The result depends on how much electricity your household can realistically shift, what that energy is worth under your impo...
Yes, a home battery can be charged from the grid overnight if the battery, inverter and installation support that operating mod...
A home battery quote is ready to sign only when you can see what is being installed, what the recommendation is based on, which...
If you already have solar panels, adding battery storage does not automatically mean replacing the solar inverter you already o...
Short answers to common pre-purchase questions – from existing solar PV and metering to installation, power cuts and support.
Yes. S2400 can be used as AC-coupled battery storage with an existing solar PV system. Your existing solar installation and inverter can continue to operate while a compatible metering solution measures household energy flows. The exact configuration depends on your existing system and electrical installation.
Automatic control based on household energy flow requires a compatible metering solution. Depending on the electricity meter, market and installation, this may be a P1 reader, Smart Meter, CT metering system or another supported solution. The key requirement is reliable measurement of import, export and household consumption.
Yes, but the implementation depends on the product and system configuration. S2400 is a single-phase device and can be used on one phase in a home with a three-phase supply. If multiple phases need to be supported separately, the appropriate system configuration should be checked in advance.
It depends on your configuration. The battery system itself can be straightforward to connect in suitable situations. Work on a Smart Meter or CT, inside the consumer unit, on a dedicated circuit or on phase allocation may, however, require a qualified electrician. Follow the product instructions and local requirements.
Not every battery configuration automatically powers the whole home during a power cut. S2400 has a separate off-grid output with up to 2,400 W for suitable connected appliances. Which appliances can be powered and for how long depends on factors including battery capacity, state of charge and connected load.
You can contact Sunpura directly. S2400 has a 10-year limited warranty. Whether a specific case is covered depends on the applicable warranty terms.
Yes. The S2400's direct PV inputs do not have to be used. The system can also operate as AC-coupled battery storage. Which charging and control functions are useful depends on the existing installation, metering solution, operating mode and local requirements.
