SMA Commercial DC Extension 15 (STOR-BEXT-15-20)
SMA Commercial DC Extension 15 (STOR-BEXT-15-20)
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SMA Commercial DC Extension 15 – 15 kWh Expansion Module for Photovoltaic Systems
The SMA Commercial DC Extension 15 (STOR-BEXT-15-20), an integral part of the SMA Commercial Storage line and available through Ecogenera, is a battery expansion module designed for commercial and industrial systems. It offers direct integration, advanced protection, and expandable capacity, incorporating high-efficiency technology and a robust IP54 design to maximize energy management in large-scale photovoltaic systems.
Key Features
- 15 kWh expansion – Direct increase in storage system capacity
- Full compatibility with SMA Commercial Storage Solution – Integration without the need for reconfiguration
- Surge protection (Type II) – Enhanced system safety
- High-efficiency cells – High and consistent performance over time
- IP54 protection rating – Resistant to dust and splashes, even outdoors
Why choose it
It reduces installation complexity, increases storage flexibility, and improves service continuity thanks to its 100% depth of discharge and design optimized for industrial and commercial environments.
Technical Specifications
| Brand | SMA |
|---|---|
| Model | Commercial DC Extension 15 |
| Series | Commercial Storage |
| Product Type | Battery Expansion Module |
| Power / Capacity | 15 kWh |
| Input / Output | 600 V – 1,000 V (800 V nominal) |
| Performance / Efficiency | 100% Depth of Discharge |
| Interfaces | Direct connection to the SMA Commercial Storage system |
| Protection | IP54 – Type II DC and AC surge protection |
| Certifications | CE / IEC (see data sheet) |
| Dimensions / Weight | 600 × 400 × 200 mm – 55 kg |
| Operating Temperature | -25°C / +60°C |
| Warranty | 10 years (see SMA terms) |
Compatibility
- Inverter: SMA Sunny Tripower Storage
- Batteries/Storage: SMA Commercial Storage 62 – SMA Commercial Storage Solution
- Monitoring Systems: SMA Data Manager M, Sunny Portal, ennexOS
Installation and Use
Installable both indoors and outdoors, it requires connection to the main SMA Commercial Storage module. Installation by qualified technicians is recommended. Average installation time: 1–2 hours.
Frequently Asked Questions
What is the SMA Commercial DC Extension 15 used for?
It is used to increase the storage capacity of the SMA Commercial Storage system, optimizing the management of energy produced by commercial and industrial photovoltaic systems.
Is it compatible with my system?
It is compatible with the SMA Commercial Storage Solution, with a voltage range of 600–1,000 V and SMA Tripower Storage inverters. Check that the main system has up-to-date firmware.
What is the difference between SMA Commercial Storage and Commercial DC Extension 15?
SMA Commercial Storage is the main storage system, while the Commercial DC Extension 15 module (STOR-BEXT-15-20) is the expansion unit that adds 15 kWh to the existing capacity.
Can it be installed outdoors?
Yes, thanks to its IP54 protection rating and operating temperature range of -25°C to +60°C.
Related products: SMA Batteries | Data Sheet
Have questions about sizing or compatibility? Request technical advice.
Related terms and use cases
Synonyms and related queries: SMA expansion module, SMA photovoltaic battery, SMA 15 kWh storage, Commercial DC Extension 15, STOR-BEXT-15-20, solar storage, renewable energy, industrial photovoltaic storage.
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Important notes: Shipping and order handling costs are not included and will be communicated later during the quoting phase. These costs are due regardless of the chosen delivery method, including pickup at the premises.
Product prices may vary depending on availability and supplier terms at the time of the quote request. Images are for illustrative purposes only and may not accurately reflect the actual product; descriptions may contain errors. We recommend always checking the manufacturer's technical data sheet.
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