Battery module – SMA – STORAGE-50-20 – HV
SKU: STORAGE-50-20
Product details
Commercial Storage Solution
The Commercial Storage Solution by SMA is an integrated energy storage system for businesses, using lithium-ion batteries with prismatic Samsung SDI NMC cells. Built-in energy management enables increased self-consumption, peak shaving, and combined operation of these modes. The modular design allows the system to be expanded and used with or without a photovoltaic installation.
Key benefits of Commercial Storage Solution
- Rated AC power 30–50 kW and an initial energy capacity of 32–56 kWh at 100% depth of discharge, depending on the variant.
- Expandability: 8 kWh modules can be added within 6 months of commissioning, increasing capacity to 48–80 kWh; the maximum capacity after system expansion is 192–320 kWh, depending on the variant.
- Intelligent energy management: optimizing self-consumption and limiting peak power demand, including in combined operating mode, help reduce energy costs.
- Free monitoring via Sunny Portal powered by ennexOS and remote configuration of SMA devices.
- Battery efficiency up to 98% and balancing cell charge levels using the DynamiX Battery Optimizer.
- 10-year system warranty upon registration with SMA and a 10-year battery capacity warranty, in accordance with SMA warranty terms.
Who is this a good choice for?
This solution is for companies with photovoltaic systems that want to increase self-consumption of the energy they generate, as well as businesses without PV installations seeking to reduce peak power demand. Expandability allows storage capacity to be increased, while monitoring makes it easier to oversee system operation.
| Parameter | ESSX-30-20 | ESSX-50-20 |
|---|---|---|
| System components | ||
| Battery inverter model | STPS30-20 | STPS50-20 |
| Energy storage model | Storage-30-20 | Storage-50-20 |
| Energy meter | SMA Commercial Energy Meter | |
| Inverter — DC input data | ||
| Maximum DC power (W) | 30600 | 51000 |
| DC voltage range (V) | 200 to 980 | |
| Maximum usable input current (A) | 150 | |
| Battery type | Lithium-ion | |
| Inverter — AC grid connection | ||
| Rated power at nominal voltage (W) | 30000 | 50000 |
| Maximum AC apparent power (VA) | 30000 | 50000 |
| Maximum reactive power (var) | 30000 | 50000 |
| Nominal AC voltage (V) | 400, ±15% | |
| AC voltage range (V) | 340 to 477 | |
| Nominal grid frequency (Hz) | 50 / 60 | |
| Grid frequency range (Hz) | 44 to 66 | |
| Maximum output current per phase conductor (A) | 45,6 | 75,5 |
| Power factor at rated power | 1 | |
| Phase displacement factor adjustment range | From 0 at overexcitation to 0 at underexcitation | |
| Phase conductors / connection cables | 3 (L1, L2, L3) / 5 (L1, L2, L3, N, PE) | |
| Inverter — efficiency | ||
| Maximum efficiency (%) | 98,0 | |
| European efficiency (%) | 97,6 | 97,2 |
| Inverter — protection features | ||
| Network monitoring | Yes | |
| Overheating protection | Yes | |
| Battery deep discharge protection | Yes | |
| AC short-circuit current supply capability | Yes | |
| Galvanic isolation | No | |
| Residual current monitoring sensitive to all current types | Yes | |
| Protection class according to IEC 62109-1 | And | |
| Overvoltage category according to IEC 60664-1 | DC: II, AC: III | |
| Surge protection according to IEC 61643-11 | AC: type 2 / class II | |
| Inverter — dimensions and weight | ||
| Dimensions (width / height / depth) (mm) | 772 / 837,3 / 443,8 | |
| Weight (kg) | 104 | |
| Inverter — operating conditions | ||
| Operating temperature (°C) | -25 to +60, with power derating | |
| Typical noise level (dB(A)) | 69 | |
| Standby power consumption (W) | 25 | |
| Topology | Three-phase | |
| Cooling | Active | |
| Degree of protection according to IEC 60529 / UL 50E | IP65 / NEMA 4X | |
| Climatic category according to IEC 60721-3-4 | 4K4 / 4Z4 / 4S2 / 4M3 / 4C2 / 4B2 | |
| Maximum relative humidity without condensation (%) | 95 | |
| Inverter — connections and functions | ||
| DC connection — cable cross-section (mm²) | Cable lug: 50 to 95 | |
| AC connection — conductor cross-section (mm²) | Screw terminal: 16 to 95 | |
| Communication and protocols | Modbus (SMA, Sunspec), SMA Speedwire, Webconnect | |
| Status / fault / communication LED indicators | Yes / Yes / Yes | |
| Energy management functions | Self-consumption optimization, peak shaving, combining operating modes | |
| Web user interface | Yes | |
| Wi-Fi | Yes, only for commissioning | |
| Can be integrated into systems with inverters from other manufacturers | Yes | |
| System monitoring | Sunny Portal powered by ennexOS | |
| Battery communication interface | Ethernet (Modbus) | |
| Backup power | In preparation | |
| System management | ||
| Number of supported devices with Sunny Tripower Storage as the system manager | 10 | |
| Number of supported devices with SMA Data Manager M (EDMM-20) as the system manager | 50 | |
| Centralized commissioning of all system devices | Yes | |
| Remote configuration of SMA devices via Sunny Portal powered by ennexOS | Yes | |
| Battery — electrical specifications | ||
| Energy at 100% depth of discharge (kWh) | 32 | 56 |
| Expansion module energy capacity (kWh) | 8 | |
| Maximum capacity after adding modules within 6 months of commissioning (kWh) | 48 | 80 |
| Maximum capacity after system expansion (kWh) | 192 | 320 |
| Nominal voltage (V) | 324 | 567 |
| Minimum operating voltage (V) | 290 | 508 |
| Maximum operating voltage (V) | 365 | 639 |
| Rated charging and discharging current (A) | 100 | |
| Maximum charge and discharge rate | 1C in combination with STPS30-20 | 1C in combination with STPS50-20 |
| Cell type | Prismatic lithium NMC (Samsung SDI) | |
| Cell balancing | DynamiX Battery Optimizer | |
| Expected number of cycles at 100% DoD, 70% EoL, 23°C ±5°C, 1C/1C | 6000 | |
| Expected number of cycles at 100% DoD, 70% EoL, 23°C ±5°C, 0.5C/0.5C | 8000 | |
| Guaranteed number of cycles at 100% DoD, 70% EoL, 23°C ±5°C, 1C/1C | 4500 | |
| Guaranteed number of cycles at 100% DoD, 70% EoL, 23°C ±5°C, 0.5C/0.5C | 6000 | |
| Standby power consumption without battery inverter (W) | 5 | |
| Battery — efficiency | ||
| Battery efficiency (%) | Up to 98 | |
| Battery — dimensions and weight | ||
| Dimensions (width / height / depth) (mm) | 608 / 1400 / 990 | 608 / 2008 / 990 |
| Total weight (kg) | 356 | 555 |
| Cabinet weight (kg) | 119 | 150 |
| Battery module weight (kg) | 56 | |
| APU battery management system weight (kg) | 13 | |
| Battery — operating conditions | ||
| Operating temperature (°C) | 0 to 50 | |
| Ambient temperature (°C) | 0 to 50 | |
| Non-condensing humidity (%) | 0 to 80 | |
| Cooling | Passive through ventilation openings and active with a fan | |
| Installation altitude (m above sea level) | < 2000 | |
| Degree of protection / protection class | IP20 / I | |
| Battery — certifications and standards | ||
| Cell certifications and standards | IEC 62619, UL 1642, UN 38.3 | |
| Product certifications and standards | CE, UN 38.3, IEC 62619, IEC 62620, IEC 61010-1, IEC 61508, IEC 61000-6-2/4/7, 2006/66/EC (Batteries Directive) | |
| Battery designation according to DIN EN 62620:2015 | INP46/175/127/[1P22S]M/-20+60/90 | |
| Energy meter — SMA Commercial Energy Meter 600 A | ||
| Model | COM-EMETER-A-20 | |
| Current transformers (A) | 3 x 600 | |
| Power supply | From the voltage input | |
| Current transformer cable length (m) | 2 | |
| Meter dimensions (mm) | 88 x 35 x 65 | |
| Meter weight (kg) | < 0,2 | |
| Transformer dimensions (width / height / depth) (mm) | 57.5 x 85.2 x 41.4 | |
| Weight of one current transformer (g) | 470 | |
| Current transformer opening diameter (mm) | 36 | |
| Total weight (kg) | 1,6 | |
| Standard measurement interval (ms) | 200 | |
| Ambient temperature during operation (°C) | -25 to +55 | |
| Installation | DIN rail | |
| Alternative meter — SMA Commercial Energy Meter 200 A | ||
| Model | COM-EMETER-B-20 | |
| Current transformers (A) | 3 x 200 | |
| Power supply | From the voltage input | |
| Current transformer cable length (m) | 2 | |
| Meter dimensions (mm) | 88 x 35 x 65 | |
| Meter weight (kg) | < 0,2 | |
| Transformer dimensions (width / height / depth) (mm) | 23 x 40 x 26 | |
| Weight of one current transformer (g) | 250 | |
| Current transformer opening diameter (mm) | 24 | |
| Total weight (kg) | 1,0 | |
| Standard measurement interval (ms) | 200 | |
| Ambient temperature during operation (°C) | -25 to +55 | |
| Installation | DIN rail | |
| Alternative power quality analyzer — UMG 604 E | ||
| Model | JANITZA-SP | |
| Current transformers | Not included in the scope of delivery | |
| Power supply | Via the CLCON-PWRSUPPLY power supply | |
| Current transformer cable length (m) | — | |
| Meter dimensions (mm) | 107.5 x 90 x 82 | |
| Meter weight (kg) | 0,35 | |
| Transformer dimensions (width / height / depth) (mm) | Not included in the scope of delivery | |
| Weight of one transformer (kg) | 0,35 | |
| Current transformer opening diameter (mm) | — | |
| Total weight (kg) | 0,35 | |
| Standard measurement interval (ms) | 200 | |
| Ambient temperature during operation (°C) | -10 to +55 | |
| Installation | DIN rail | |
| Warranty | ||
| Product warranty (years) | 10 | |
Data under nominal conditions; updated 09/2025. Device limits include SMA EV Charger Business, PV inverters, Sunny Tripower Storage and SMA Commercial Energy Meter. Alternative meter data applies to options selected when ordering.
Official distribution
