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SMA Home Storage HS-BMS-20 / HS-BM-4.71-20 / HS-BU-20

A Powerful Storage Solution

Offer homeowners flexibility with the modular SMA Home Storage battery, that pairs perfectly with the Sunny Boy Smart Energy hybrid inverter. This expandable system unlocks the full potential of sustainable energy, providing powerful, future-ready solutions.

Reliable Solar Power – Day and Night

SMA Home Storage ensures energy stability by providing backup power during outages and sustainably powering homes in the evening when the PV system isn’t producing energy. Designed for long-term performance, it offers flexible scalability to meet individual homeowner needs and boasts a lifetime cycle exceeding industry standards.

With a 12.5-year¹ warranty, invest with confidence, knowing you’re choosing proven SMA quality and long-term security. Plus, by selecting SMA Home Storage, eliminate the hassle of dealing with multiple manufacturers—ensuring seamless troubleshooting, service and support under one trusted brand.

Built to Last, Indoors or Out

Engineered to withstand extreme weather conditions, SMA Home Storage is designed for both indoor and outdoor installation, offering maximum flexibility.

Upgrade to a smarter, all-in-one energy solution with SMA Home Storage and the Sunny Boy Smart Energy hybrid inverter—the perfect residential solution.

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More benefits

Unmatched flexibility

Slim, stackable design, expandable from 9.4 kWh to 18.9 kWh of usable capacity
Parallel connection supports up to 4 battery stacks, offering a total usable capacity of up to 75.44 kWh*
Maximum charge and discharge power up to 18.09 kW
IP65- rated for durable indoor or outdoor use

Easy installation, fast commissioning

Plug-and-play solution and quick commissioning through the SMA 360° App
Proprietary mounting simplifies servicing without the need to remove modules
Flexible mounting options: wall-mounted or floor installation
Expandable capacity available²

Future-proof electricity storage system

Developed for intensive use
Ready for future, adaptability to evolving grid policies
Scalable and modularly expandable as energy needs grow
Up to 8,000 life cycles and 12.5 years of warranty¹

Seamless integrability and compatibility

Compatible with the Sunny Boy Smart Energy hybrid inverter

*Planned

SMA hybrid inverters

In combination with the Sunny Boy Smart Energy, SMA Home Storage offers unmatched flexibility, maximum solar energy, easy setup and adaptable energy management.

Find out more about hybrid inverters

¹ Device registration via the SMA product registration at my.sma-service.com required within 30 days. The conditions of the SMA limited factory warranty apply. You can find additional information at SMA-solar.com.

² Available within the first 12 months after commissioning without limitations

SMA Home Storage