What is the round-trip efficiency of the SMA SMA Storage XL Package CSS-107-OUT-30-30 (CS-107-OUT-30 + STPS30-20)?

98 % (DC) (datasheet, vpsolar.com, read 28 Oct 2026). DC means the battery alone, without the inverter.

SMA

SMA Storage XL Package CSS-107-OUT-30-30 (CS-107-OUT-30 + STPS30-20)

Outdoor 107 kWh battery cabinet CS-107-OUT-30 with one Sunny Tripower Storage X 30 (STPS30-20). Also offered with STPS50-20 (CSS-107-OUT-50-30). Indoor 89 kWh variant (CS-89-IN-30, IP20, 597x2058x960 mm, 941 kg) not recorded separately.

Cell supplier not stated in datasheet.

Short answer

The SMA SMA Storage XL Package CSS-107-OUT-30-30 (CS-107-OUT-30 + STPS30-20) is an LFP C&I battery cabinet (as specified: Outdoor 107 kWh battery cabinet CS-107-OUT-30 with one Sunny Tripower Storage X 30 (STPS30-20). Also offered with STPS50-20 (CSS-107-OUT-50-30). Indoor 89 kWh variant (CS-89-IN-30, IP20, 597x2058x960 mm, 941 kg) not recorded separately). Usable energy: 107 kWh. Max. discharge power: 30 kW. Round-trip efficiency: 98 % (DC). Warranty: 10 years.

Each figure is in the table below with its source and the day it was read.

Specifications

Spec	Value	Source
Chemistry	LFP	vpsolar.comDatasheet · read 28 Oct 2026
Usable energy	107 kWh	vpsolar.comDatasheet · read 28 Oct 2026
Nominal energy	unavailableDatasheet states only usable energy	Not published
Max. discharge power	30 kWAC rated power STPS30-20	vpsolar.comDatasheet · read 28 Oct 2026
Max. charge power	30 kWAC rated power STPS30-20 (max DC 30.6 kW)	vpsolar.comDatasheet · read 28 Oct 2026
C-rate	0.28 Cderived: 30 kW / 107 kWh; battery max C-rate 1C	vpsolar.comDatasheet · read 28 Oct 2026
Round-trip efficiency	98 % (DC)'Efficiency (battery) up to 98%'; not explicitly round-trip. Inverter max/Euro eff. 98.0%/97.6%.	vpsolar.comDatasheet · read 28 Oct 2026
Depth of discharge	unavailable	Not published
Cycle life	12,000 cyclesConditions: 'up to 12000 charging cycles' (cells), no conditions	vpsolar.comDatasheet · read 28 Oct 2026
Warranty	10 yearsAfter registration with SMA	vpsolar.comDatasheet · read 28 Oct 2026
Warranty cycles	8,500 cycles	vpsolar.comDatasheet · read 28 Oct 2026
Warranty throughput	695.5 MWhderived: 6.5 MWh/kWh x 107 kWh	vpsolar.comDatasheet · read 28 Oct 2026
Capacity at end of warranty	unavailable	Not published
Nominal voltage	384 VOperating 336-432 V	vpsolar.comDatasheet · read 28 Oct 2026
Operating temperature	−25 to 55 °C	vpsolar.comDatasheet · read 28 Oct 2026
Dimensions (W × D × H)	1,150 × 1,375 × 2,120 mmOutdoor cabinet	vpsolar.comDatasheet · read 28 Oct 2026
Weight	1,515 kg	vpsolar.comDatasheet · read 28 Oct 2026
Ingress protection	IP55	vpsolar.comDatasheet · read 28 Oct 2026
Integrated inverter (PCS)	Yes, 30 kWPackage includes separate STPS30-20 inverter	vpsolar.comDatasheet · read 28 Oct 2026
Scalability	Up to 4 systems in parallel	vpsolar.comDatasheet · read 28 Oct 2026
Certifications	IEC 61000, IEC 62619, UN 38.3, IEC 62477, IEC 60730, VDE 2510, IEC 63056, REACH, RoHS	vpsolar.comDatasheet · read 28 Oct 2026
Compatible inverters	SMA Sunny Tripower Storage X 30 (STPS30-20), SMA Sunny Tripower Storage X 50 (STPS50-20)	vpsolar.comDatasheet · read 28 Oct 2026

Datasheetvpsolar.comversion CSSX-30-DS-en-12 · dated 2026-05 · read 28 Oct 2026

sma.de · sma-storage-xl

Notes

See sma-storage-xl-css-197-out-50-30.

Sold in: EU

Prices

No public price listing was found when this database was compiled (28 Oct 2026). Zorowatt does not estimate prices.

Questions

How much usable energy does the SMA SMA Storage XL Package CSS-107-OUT-30-30 (CS-107-OUT-30 + STPS30-20) store?: 107 kWh (datasheet, vpsolar.com, read 28 Oct 2026), for this configuration: Outdoor 107 kWh battery cabinet CS-107-OUT-30 with one Sunny Tripower Storage X 30 (STPS30-20). Also offered with STPS50-20 (CSS-107-OUT-50-30). Indoor 89 kWh variant (CS-89-IN-30, IP20, 597x2058x960 mm, 941 kg) not recorded separately.
What is the round-trip efficiency of the SMA SMA Storage XL Package CSS-107-OUT-30-30 (CS-107-OUT-30 + STPS30-20)?: 98 % (DC) (datasheet, vpsolar.com, read 28 Oct 2026). DC means the battery alone, without the inverter.
What warranty does the SMA SMA Storage XL Package CSS-107-OUT-30-30 (CS-107-OUT-30 + STPS30-20) have?: 10 years, 8,500 cycles, 695.5 MWh of throughput (datasheet, vpsolar.com, read 28 Oct 2026). The warranty document's own terms decide which limit comes first.
Does the SMA SMA Storage XL Package CSS-107-OUT-30-30 (CS-107-OUT-30 + STPS30-20) include an inverter?: Yes, it has an integrated power conversion system (PCS) rated 30 kW (datasheet, vpsolar.com, read 28 Oct 2026).
How much does the SMA SMA Storage XL Package CSS-107-OUT-30-30 (CS-107-OUT-30 + STPS30-20) cost?: No public price listing was found for it when this database was compiled (28 Oct 2026). Zorowatt does not estimate prices.

Would this battery pay back on your site? Upload a year of meter data and the bill; Zorowatt rebuilds the bill and sizes the battery.

Try it free Pricing

More C&I cabinets

AlphaESS STORION-H50-G3 AlphaESS STORION-LC-TB125 Deye GE-F60 Dyness DH200F E3/DC (HagerEnergy GmbH) qntm (Gewerbekraftwerk)FENECON Commercial 92 (1 inverter, 5 towers)FENECON Industrial S Fox ESS G-MAX GM215kWh-100kW-2h All batteries