All-in-One
Three components. One unit.
4× MPPT, a 2,400 W bidirectional inverter and 5 kWh LFP storage are combined in one integrated system.
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All components listed in the set title and product description. Each main storage unit includes 1 × 3 m AC mains connection cable as standard, at no separate charge.
Depending on your intended use, you will need solar panels, a compatible Smart Meter and suitable connection, protection and mounting materials unless these are included in the set.
The electrical connection, protection and metering design, and commissioning must be checked or carried out by a qualified electrician in accordance with local requirements. Mounting, electrical installation, registration and commissioning are not included.
20 % promotional discount with two or more main storage units. Cannot be combined with discount codes. The connecting element is not required for one main storage unit with B500.
Flexible payment available.
Flexible payment available.
SunEnergyXT 500 series
Explore SunEnergyXT 500, 500 PRO and 500 PRO AC CORE: three product lines for different energy sources, power requirements and households.
Functions, connection type, Smart Meter and technical requirements vary by product line and system configuration.
Everyday energy flow
Generation, storage, consumption and backup power are shown as a clear energy flow. The specific functionality depends on the product line and system design.
The app and Smart Meter show how much energy your household needs and where it comes from.
500 and 500 PRO use solar energy directly. AC CORE adds storage to existing PV systems on the AC side, supports grid charging and allows direct DC-PV/MPPT operation only after confirmed approval.
Stored energy is available for the household or selected loads connected to the backup output.
Set charging targets and reserves to suit your consumption, electricity tariff and desired backup reserve.
Applications
Choose your application and see how the product line, capacity and power reserve work together.
SunEnergyXT 500 combines direct PV connection with 5 kWh storage, up to 800 W grid feed-in and up to 2,400 W at the backup output.
Plan storage, energy metering and the product line to suit your existing PV system, consumption and desired power reserve.
Up to 2,400 W grid feed-in and up to 2,400 W backup output per main unit. Multiple main units require suitable technical planning and approval.
Add compatible B500 batteries to suit your energy needs. Additional batteries increase capacity, but do not automatically increase output power.
Consider the vehicle, wallbox, charging power, grid connection and electrical installation from the start. The 500 series provides the storage component, not the complete charging infrastructure.
Plan your backup reserve for the fridge, router, lighting and other essential loads. Output power and runtime depend on the model, capacity and load profile.
Three product lines · one system family
Choose the product line according to your energy source and required grid feed-in power. B500 adds storage capacity to compatible systems.
SunEnergyXT 500 · Starter system
SunEnergyXT 500 combines direct PV connection, 5 kWh base capacity, up to 800 W grid feed-in and up to 2,400 W backup output as a starting point for your system.
SunEnergyXT 500 PRO · Bestseller
500 PRO offers 2,400 W grid feed-in and 2,400 W backup output with direct PV connection. The required capacity and electrical planning depend on your load profile.
500 PRO AC CORE
500 PRO AC CORE adds AC-coupled retrofit storage to an existing PV system. A compatible Smart Meter measures surplus and consumption; each main unit provides 5 kWh nominal capacity (4.8 kWh usable), 2,400 W grid-connected AC power and 2,400 W backup power. A qualified installer must plan the installation and electrical protection to suit the system.
B500 · Modular expansion
B500 adds another 5 kWh to a compatible 500 or 500 PRO system. More capacity does not automatically increase output power.
Retrofit storage for existing PV systems
500 PRO AC CORE adds AC-coupled storage to your existing photovoltaic system. A working inverter can generally remain part of the system. If exported surplus receives little or no payment, you can store that energy for your own later use. Capacity and system architecture can be expanded modularly as your needs grow.
AC storage from€1.599,00€1.149,00
Auf Lager · sofort lieferbar
Retrofit instead of replacing
500 PRO AC CORE adds storage on the AC side of your existing system. A working inverter does not need to be replaced as a precaution; compatibility is checked for your specific system.
Put surplus energy to use
If export payments are low or unavailable, store your solar surplus for later use rather than sending it to the grid without making full use of its value.
Smart Meter
A compatible Smart Meter detects generation and consumption, providing the readings needed to charge the battery with solar surplus via the AC connection.
Expand modularly
B500 increases storage capacity. Additional main units increase available system power and require technical planning to suit your needs.
Options for future expansion
Start with an AC-coupled retrofit, then expand the capacity and develop the system architecture over time. Direct PV expansion remains subject to approval and technical requirements.
Compare models
Compare energy source, direct PV input, grid feed-in, backup output and technical planning requirements.
| Function | 500 PRO AC CORE | 500 | 500 PRO |
|---|---|---|---|
| Your starting point | Keep your existing PV system and add AC-coupled storage | New or separate direct PV connection · up to 800 W grid feed-in | New or separate direct PV connection · up to 2,400 W grid feed-in |
| Existing inverter | Can generally remain part of the existing PV system · check compatibility | Direct PV connection through the 500 system | Direct PV connection through the 500 PRO system |
| Capacity | 5–90 kWh · up to 30 kWh per tower | 5–30 kWh in 5 kWh steps | 5–30 kWh in 5 kWh steps |
| Grid feed-in / backup power | 2.400 W / 2.400 W | 800 W / 2.400 W | 2.400 W / 2.400 W |
| Suitable if… | You want to add AC-coupled storage to an existing PV system, store solar surplus or use lower-cost grid electricity periods | You want to store solar energy easily | You need more power and reserves |
| PV charging | Yes · AC coupling through an existing PV system · direct MPPT operation only after confirmed approval | Yes · PV connection | Yes · PV connection |
| Compatible Smart Meters | Shelly 3EM / Pro 3EM · EcoTracker · bitShake | Check according to the energy management setup | Check according to the energy management setup |
| Expand capacity and power | B500 increases capacity · additional main units increase power | B500 increases capacity · power remains model-dependent | B500 increases capacity · multiple main units require technical planning |
| Installation | AC coupling by a qualified installer | Observe connection requirements and applicable rules | Installation by a qualified professional |
| Next step | View AC CORE · check AC retrofit, grid charging and backup power options | Choose a starter offer | Plan capacity and household loads |
Find the right model
Choose whether to add AC-coupled storage to an existing PV system or connect a new PV system directly. Your consumption and power requirements then refine the recommendation.
Keeping existing PV and adding AC-coupled storage leads to 500 PRO AC CORE. The Smart Meter, grid connection and electrical protection are checked for the system.
New direct PV connection: up to 800 W grid feed-in leads to 500; 801–2,400 W leads to 500 PRO. Both offer up to 2,400 W backup power.
B500 increases storage capacity. Additional main units increase available power; electric cars and heat pumps are planned separately.
For this application, we also recommend reviewing the relevant solution or discussing your requirements with us.
Use the AC-coupled retrofit storage system for existing PV systems, scheduled grid charging and backup power. Each main unit provides 5 kWh nominal capacity, 2,400 W AC power and 2,400 W backup power; a qualified installer must check installation and electrical protection.
For a starter solar system with direct PV connection, up to 800 W grid feed-in and 2,400 W backup power.
For higher household loads with 2,400 W grid feed-in and 2,400 W backup output.
For more capacity in a compatible 500 system.
Capacity guidance uses 5 kWh steps up to a maximum of 30 kWh per storage tower. For AC-coupled retrofits of existing PV systems, the recommendation is AC CORE. For a new direct PV connection, it depends on the desired grid feed-in power: up to 800 W leads to 500, and higher power to 500 PRO. The result does not replace electrical planning.
Use the guidance from the series finder or adjust capacity and power reserve yourself. The diagram arranges main units and B500 batteries into suitable storage towers.
We prioritise a compact, economical configuration with as few main units as possible.
Recommended configuration
Our recommendation
For small to medium capacities, we initially prioritise a simple configuration. If you need more power later, you can expand to two or three main units.
Multiple main units
Additional B500 batteries increase storage capacity. With technically approved system linking, further main units can also provide additional MPPT channels and power reserves.
Three main units provide up to twelve MPPT channels in total and can track different panel orientations independently.
Each additional main unit increases the technically available power reserve by up to 2.4 kW, depending on approval and electrical design.
Multiple main units provide additional power and backup reserves for larger loads and more demanding energy systems.
Parallel operation, total power and connection type depend on approved control systems, firmware, the grid connection and technical planning.

System architecture
Expansion batteries primarily increase energy storage. With approved linking, additional main units can also increase power, the number of MPPT channels and system flexibility.
From 2.4 kW through 4.8 kW to a theoretical 7.2 kW: additional main units can increase the power reserve in stages.
Each main unit adds four MPPT channels, providing more options for different orientations, partial shading and additional panel areas.
Plan main units according to the required power and add compatible B500 batteries to meet your capacity needs.
Total power and connection type must be planned to match the grid connection, firmware, controls and system approval.
More storage capacity provides reserves for evenings, nights, backup power and later expansion. The right size depends on your consumption and energy source.
A larger battery does not have to work as hard. With 5 kWh capacity, the strain on the cells in everyday use remains extremely low. This means less heat generation and minimal wear. The result is over 10,000 charge cycles, designed for up to 30 years of use (at one charge cycle per day).
What use is a backup power system if the battery runs out after an hour? The additional 3 kWh compared with conventional systems give you enough energy to run a fridge, router and essential appliances for hours or even days.
Dynamic electricity tariffs are the future. Charge the large battery at night when electricity is cheap, and use it when prices rise. Your battery becomes an investment that pays for itself sooner, even on days without sunshine.
MPPT controllers, inverter, battery, Smart Meter and backup output each perform different tasks. Equipment varies by product line.
Direct connection to your solar panels. Each MPPT optimises energy yield independently, even in partial shade. Dynamic MPPT load distribution can automatically balance unused power between the inputs. This allows the maximum PV input power of 2,500 W to be used even when individual panels deliver less power.
Converts the DC electricity stored in the battery into 230 V household electricity and can intelligently charge the battery from the home electrical system when needed.
The latest premium EVE cells (314 Ah) store energy efficiently to reliably supply an average household overnight with its own stored solar power.
Monitor generation, consumption, storage status and energy flows through the app and available local interfaces.
Keep track of PV, battery, grid flow and consumption.
In local mode, the system responds particularly quickly to changes in load.
Smart home integration via mDNS/TCP without mandatory cloud access.
Seamless backup power with a very short switchover time for critical loads.
Install new features and improvements through the app.
Local control for greater control over your energy data.
Vergleiche SunEnergyXT 500, 500 PRO und 500 PRO AC CORE nach Energiequelle, Notstrom, PV-Eingang und wichtigen technischen Daten. Nicht bestätigte AC-CORE-Werte sind ausdrücklich als prüfpflichtig markiert.
| Parameter | SunEnergyXT 500 | SunEnergyXT 500 Pro | SunEnergyXT 500 PRO AC CORE |
|---|---|---|---|
| Battery capacity | 5 kWh | 5 kWh | 5 kWh |
| Usable capacity | 4.8 kWh | 4.8 kWh | 4.8 kWh |
| Energy source | Direct PV connection | Direct PV connection | AC coupling to existing PV · grid charging · direct MPPT operation only after approval |
| Grid feed-in / backup power | 800 W / 2,400 W | 2,400 W / 2,400 W | 2,400 W / 2,400 W |
| MPPT inputs | 4× 625 W | 4× 625 W | 4× 625 W · only after confirmed approval |
| UPS switchover time | ≤10 ms | ≤10 ms | ≤10 ms |
| Outdoor protection rating | IP65 | IP65 | IP65 |
| Charge cycles | 10,000+ | 10,000+ | 10,000+ |
| Warranty | 10 years | 10 years | 10 years |
| Installation | Depending on connection type | Qualified installation company | Qualified installation company |
| Parameter | SunEnergyXT 500 | SunEnergyXT 500 Pro | SunEnergyXT 500 PRO AC CORE |
|---|---|---|---|
| Batteriespannungsbereich | 12,5 V – 18,25 V | 12,5 V – 18,25 V | Nach Konfiguration prüfen |
| Nennspannung | 16 V | 16 V | Nach Konfiguration prüfen |
| Max. kontinuierlicher Entladestrom | 157 A | 157 A | Nach Konfiguration prüfen |
| Batteriekapazität (nenn) | 5.024 Wh | 5.024 Wh | 5.024 Wh |
| Nutzbare Kapazität | 4,8 kWh | 4,8 kWh | 4,8 kWh |
| Batteriestrombegrenzungsmodul | 5 A | 5 A | Nach Konfiguration prüfen |
| Max. parallele Batteriepacks | 6 (1 Kopfspeicher + 5 Erweiterungsspeicher) | 6 (1 Kopfspeicher + 5 Erweiterungsspeicher) | Bis zu 6 Batteriemodule pro Turm |
| Gewicht Batteriepack | 43,5 kg | 43,5 kg | Nach Konfiguration prüfen |
| Abmessungen Batteriepack (L×B×H) | 536 × 314,7 × 242 mm | 536 × 314,7 × 242 mm | Nach Konfiguration prüfen |
| Zellenhersteller | EVE Energy | EVE Energy | EVE Energy |
| Ladezyklen | >10.000 (bei 25°C±2°C, 80% DoD, 0,5C/0,5C, EoL >70%) | >10.000 (bei 25°C±2°C, 80% DoD, 0,5C/0,5C, EoL >70%) | >10.000 |
| Batteriezertifizierung | UN38.3 | UN38.3 | Nach Konfiguration prüfen |
| Parameter | SunEnergyXT 500 | SunEnergyXT 500 Pro | SunEnergyXT 500 PRO AC CORE |
|---|---|---|---|
| Grid type | Single-phase, two-wire (L, N) + PE | Single-phase, two-wire (L, N) + PE | Single-phase, two-wire (L, N) + PE |
| Grid-connected AC power | 2,400 W | 2,400 W | 2,400 W |
| Rated charging power | 2,400 W | 2,400 W | 2,400 W |
| Rated output voltage | 230 VAC / 184–253 VAC | 230 VAC / 184–253 VAC | 230 VAC / 184–253 VAC |
| Rated output current | 10.5 A | 10.5 A | 10.5 A |
| Rated frequency range | 50 Hz / 48–52 Hz | 50 Hz / 48–52 Hz | 50 Hz / 48–52 Hz |
| Parameter | SunEnergyXT 500 | SunEnergyXT 500 Pro | SunEnergyXT 500 PRO AC CORE |
|---|---|---|---|
| Output type | Single-phase AC output | Single-phase AC output | Single-phase AC output |
| Rated AC output power | 2,400 VA | 2,400 VA | 2,400 VA |
| Rated output voltage | 230 VAC / 225–235 VAC | 230 VAC / 225–235 VAC | 230 VAC / 225–235 VAC |
| Rated output current | 10.5 A | 10.5 A | 10.5 A |
| UPS switchover time | ≤10 ms | ≤10 ms | ≤10 ms |
| Load compatibility | Common household appliances | Common household appliances | Common household appliances |
| Parallel operation | Up to 3 units (optional) / three-phase announced | Up to 3 units (optional) / three-phase announced | Up to 3 units (optional) / three-phase announced |
| Parameter | SunEnergyXT 500 | SunEnergyXT 500 Pro | SunEnergyXT 500 PRO AC CORE |
|---|---|---|---|
| MPPT-Ausgangsleistung | 625 W pro Kanal | 625 W pro Kanal | 625 W pro Kanal |
| Anzahl MPPT-Kanäle | 4 | 4 | 4 |
| Max. DC-Eingangsspannung | 100 V | 100 V | Nach Konfiguration prüfen |
| MPPT-Betriebsspannungsbereich | 20–60 V | 20–60 V | 22–60 V |
| Startspannung | 20 V | 20 V | Nach Konfiguration prüfen |
| Max. Eingangsstrom | 22 A × 4 | 22 A × 4 | Nach Konfiguration prüfen |
| Max. Kurzschlussstrom | 25 A × 4 | 25 A × 4 | Nach Konfiguration prüfen |
| Parameter | SunEnergyXT 500 | SunEnergyXT 500 Pro | SunEnergyXT 500 PRO AC CORE |
|---|---|---|---|
| Betriebstemperatur | -20°C bis +55°C (automatisches Heizen unter 0°C) | -20°C bis +55°C (automatisches Heizen unter 0°C) | -20°C bis +55°C (automatisches Heizen unter 0°C) |
| Lagertemperatur | -30°C bis +65°C | -30°C bis +65°C | Nach Konfiguration prüfen |
| Abmessungen Haupteinheit (L×B×H) | 536 × 314,7 × 307 mm | 536 × 314,7 × 307 mm | 536 × 379 × 307 mm |
| Gewicht Haupteinheit | 58 kg | 58 kg | 58 ± 1 kg |
| Schutzklasse | IP65 (außentauglich) | IP65 (außentauglich) | IP65 (außentauglich) |
| Kühlung | Passiv (natürliche Konvektion, lüfterlos) | Passiv (natürliche Konvektion, lüfterlos) | Passiv, lüfterlos und geräuschlos |
| Kommunikation | Wi-Fi | Wi-Fi | Wi-Fi |
| Überwachung | SunEnergyXT App | SunEnergyXT App | SunEnergyXT App |
| Zertifizierungen & Sicherheitsstandards | IEC 62109-1/2, IEC 62619, IEC 60730, IEC 61000, EN 18031, VDE 4105, UN38.3 | IEC 62109-1/2, IEC 62619, IEC 60730, IEC 61000, EN 18031, VDE 4105, UN38.3 | Nach Konfiguration prüfen |
| Parameter | SunEnergyXT 500 | SunEnergyXT 500 Pro | SunEnergyXT 500 PRO AC CORE |
|---|---|---|---|
| Max. Wechselrichter-Wirkungsgrad | 95% | 95% | Nach Konfiguration prüfen |
| Max. Wechselrichter-Wirkungsgrad (Spitze) | 95,25% | 95,25% | Nach Konfiguration prüfen |
| Netzlade-Wirkungsgrad | 94,25% | 94,25% | Nach Konfiguration prüfen |
| Max. PV-Lade-Wirkungsgrad | 96,82% | 96,82% | Nach Konfiguration prüfen |
| Max. Round-Trip-Wirkungsgrad | 85% | 85% | Nach Konfiguration prüfen |
| Batterie-zu-Netz Wirkungsgrad | 94,12% | 94,12% | Nach Konfiguration prüfen |
| MPPT statische Tracking-Genauigkeit | 99,99% | 99,99% | Nach Konfiguration prüfen |
Check space requirements, weight and permitted installation conditions before planning your system.
Resources for your next steps
Check the documents before planning, connect your system to the app after commissioning and find important updates in one place.
Before purchasing
Check the connection type, dimensions and technical requirements before planning or ordering your system.
After commissioning
Download the app and conveniently control your system on your mobile device, with live data, a status overview and quick settings.
Service & updates
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Clearly explained
Product lines, energy sources, capacity, backup power and technical planning explained.
SunEnergyXT 500 is the starter option with direct PV connection and up to 800 W grid feed-in. 500 PRO offers direct PV connection and up to 2,400 W grid feed-in. 500 PRO AC CORE is an AC-coupled retrofit storage system for existing PV systems, grid charging and backup power. All three product lines start with 5 kWh nominal capacity and offer up to 2,400 W at the backup output.
SunEnergyXT 500 PRO AC CORE is an AC-coupled retrofit storage system for existing PV installations. The system offers 5 kWh nominal capacity (4.8 kWh usable), 2,400 W grid-connected AC power and 2,400 W backup power. Direct DC-PV/MPPT operation is possible only after confirmed approval. AC installation is carried out by a qualified installation company.
AC coupling, the grid connection, the protection design and the Smart Meter must suit the existing installation. The manufacturer lists Shelly 3EM, Shelly Pro 3EM, EcoTracker and bitShake as compatible energy meters. Planning and installation are carried out by a qualified installation company.
The SunEnergyXT App shows PV input, battery status, grid feed-in and household consumption. It supports firmware updates, zero export and control of UPS mode. A local interface with Home Assistant integration is planned for advanced smart home systems.
Choose 500 PRO if you need up to 2,400 W grid feed-in rather than up to 800 W, or plan for higher household loads. The backup output is not a distinguishing feature: both SunEnergyXT 500 and 500 PRO offer up to 2,400 W backup power. The specific combination of capacity, PV and consumption should be checked.
No. These requirements affect planning but are not automatically included with a product. For complex systems, we recommend getting advice before buying.
For AC coupling, Smart Meter, electrical protection, grid connection, electric car or heat pump requirements, have the specific design checked by a qualified professional before buying.
One main unit starts at 5 kWh. Up to 30 kWh is specified per tower. According to the manufacturer, a system can be planned up to 90 kWh using up to three main units, each with suitable expansion batteries. Multiple main units increase available power as well as capacity; connection and distribution require technical planning.
AC CORE is intended for AC-coupled retrofits of existing PV systems. A working inverter can generally remain part of the existing system. Compatibility between the Smart Meter, grid connection, electrical protection and control must be checked for your specific system before buying.
No. Future use or activation of additional PV functions depends on firmware, manufacturer approval, certification and the technical requirements of your installation. This is therefore presented as a possible future option, not an unconditionally available feature.
Personal expert advice