Power More of Your Home — Day, Night and During Outages
Pair 15kWh of LiFePO4 storage with an 11–12kW inverter to keep more of everyday life running, store surplus rooftop solar and reduce your dependence on the grid.
See the Systems First. Then Choose the Control You Need.
Three matched inverter + battery systems for different levels of control and energy management. Prices update automatically from the exact SHOPLINE variants. The displayed main price already includes the current OFFER7 7% discount.
Best for Balanced Backup
SMT 11kW + 15kWh
Choose SMT for a balanced high-power setup with battery communication, app monitoring, generator support and parallel expansion.
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Klarna · Pay in 3 interest-free payments, where available.
A larger home battery is not only about keeping the lights on. It gives your household more
flexibility to use solar energy, manage everyday loads and stay comfortable when the grid is unavailable.
Keep More Than the Essentials Running
Support refrigeration, internet, lighting and everyday electronics
while leaving more room for comfort loads such as air conditioning, pumps and short-duration kitchen use.
Store More of Your Daytime Solar
Your PV powers the home first. Surplus solar can then charge the
battery for use later in the evening or at night.
More Flexibility During Longer Outages
A larger battery gives you more freedom to decide what stays on — and
for how long — when an outage lasts longer than expected.
Complete System Advantage
Why Buy the Complete EASUN System?
More than an inverter and a battery placed in the same cart. A complete system can save you money, reduce compatibility concerns and make the purchase easier to manage.
Bundle Value
Save More as a Complete System
Buying the inverter and battery together is more cost-effective than purchasing the two products separately.
Matched Before You Buy
Reduced Compatibility Guesswork
Voltage, battery system and supported BMS communication are already considered as part of the combination.
One Support Path
One System. One Support Team.
You are not left coordinating between different suppliers when you need help with settings, communication or operation.
Better Balance
Power and Storage That Make Sense Together
11–12kW inverter power provides room for higher household loads, while 15kWh storage supports longer daily use.
One order. Fewer compatibility checks. A simpler path to installation.
The system bundle is intended to remove work from the buying process — not add another technical decision.
Homes do not use one appliance at a time. Build a more realistic household profile using simultaneous loads, usage time, outage start time and solar contribution.
Family Evening
A Normal Evening Uses Several Loads at the Same Time
Air conditioning, refrigeration, WiFi, lighting, TV, computers and short kitchen use create a much more realistic backup profile than calculating one appliance at a time.
Peak Expected Load
0 kW
Possible simultaneous running load
Daily Energy
0 kWh
Selected household profile
Estimated Backup
0 h
From selected outage start
Inverter Check
—
Running-load estimate only
Estimate uses a 15kWh battery, conversion losses, selected household use and a simplified daylight profile. Motors, compressors and pumps can draw much higher startup power than normal running load; final installation should be checked by a qualified installer.
How Your System Works
See How Solar, Storage and Backup Work Together
Follow how energy moves through your home — from daytime solar production to evening battery
use, outage backup and connected monitoring.
Solar Storage
Use Solar When You Have It.
Stored Energy When You Need It.
During the day, solar power supplies household loads first. Surplus
PV energy can then charge the battery for use after sunset.
PV powers the home first.
Surplus solar charges the battery.
Stored energy supports evening and night use.
Illustrative ToU Tariff Shift
Potential annual tariff-shifting value
€0
Illustrative only; includes a 90% round-trip efficiency assumption.
Use More of Your Own Solar
See How More of Your Solar Could Stay in Your Home
This calculator models a representative day: PV serves the home first, surplus solar charges
the battery, and stored energy supports later household use.
The Calculation Follows the Real Energy Flow
Solar → Home First
Surplus → Battery
Battery → Later Use
Solar Generation
0
kWh/year estimate
Self-Consumption
0% → 0%
Without battery → with 15kWh storage
Extra Solar Shifted by Battery
0
kWh/year used later instead of from grid
Potential Electricity Cost Reduction
€0
€0/month total · €0/year from stored surplus
Illustrative estimate only. Feed-in revenue and dynamic tariffs are
excluded. Actual results vary with weather, shading, load timing, system settings and local electricity
tariffs.
Compare Before You Choose
Which 15kWh System Fits Your Home Best?
Compare the differences that change the buying decision. On mobile, tap a model instead of
dragging a wide specification table.
Feature
SMT 11kW
SMW 11kW
SGR 12kW
Best fit
Balanced backup
PC-based control
Smart energy management
Rated output
11kW
11kW
12kW
Surge / peak
22kVA
22kVA
24kVA
CT
Yes
No
Yes
APP
Monitor
Monitor
Monitor & control
PC control
No
Yes
Yes
ToU
No
No
Yes
Generator
Yes
Yes
Yes
Parallel
Yes
Yes · up to 6
Yes · up to 6
Max PV input
11kW
11kW
18kW
Max charge current
150A
150A
150A
Transfer time
10ms PC / 20ms Home
10ms PC / 20ms Home
10ms typical
Battery
15kWh LiFePO4 · 51.2V 300Ah · 200A max continuous charge/discharge
Balanced Backup
SMT 11kW + 15kWh
Complete-System Value
Make the Upgrade Easier Today — and More Valuable Over Time
Bundle value lowers the system cost versus buying the main components separately, while Klarna can reduce upfront payment pressure where available.
Bundle Saving
A Better Price as a Complete System
The inverter + battery package is priced more competitively than purchasing the main components separately. Product buttons always lead to the current store price.
Klarna · Pay in 3
3 Interest-Free Payments
Reduce upfront payment pressure without adding interest, where Klarna Pay in 3 is available.
Availability and approval are confirmed during checkout and may vary by market.
5-Year Warranty
Longer Purchase Confidence
The 15kWh systems on this page are presented with a 5-year warranty and technical support.
EU Warehouse
European Fulfillment
EU warehouse fulfillment helps simplify delivery for European customers. Timing varies by destination and system configuration.
Not sure which inverter fits your home?
Send your PV size, main household loads and installation goal. We can help match SMT, SMW or SGR.
Answers to the practical questions that usually matter before choosing a high-power home backup system.
It depends on household load, how many appliances operate together, how long they run and whether solar is available. Use the Real Home Use calculator above for a closer estimate.
Potentially, yes. Actual running power, compressor startup characteristics and other simultaneous loads all matter. The 11–12kW inverter class provides substantial running power, but startup surge should still be checked by the installer.
Yes. Pumps are common in village and independent-home applications. Suitability depends on the pump running power, startup current and other simultaneous loads.
The system relies more heavily on stored battery energy or the grid depending on the operating mode. Lower solar production simply means less surplus PV energy is available to recharge the battery.
Yes. Grid charging is supported. SGR additionally supports Time-of-Use scheduling for more flexible tariff-based charging and discharging.
The 51.2V battery platform supports parallel capacity expansion, and the inverter options offered here support parallel system expansion. Final expansion should use matched models and be confirmed for the installation.
Choose SMT for balanced backup, SMW if PC-side control and parallel / 3-phase deployment matter most, and SGR if you want CT, Time-of-Use scheduling and the most complete app / PC control.
Klarna Pay in 3 can be used where available for eligible customers. Availability and approval are shown during checkout.
Yes. A high-power residential storage system should be installed and configured by a qualified professional so wiring, protection, PV input, battery communication and motor / compressor startup loads are checked correctly.
Build the Right System for Your Home
Ready to Build a Stronger Home Backup System?
Choose a matched 15kWh system, or send us your household loads and solar setup if you want help selecting the right inverter.
