Photo from the manufacturer
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Huawei LUNA2000-14-S1 is a high-voltage residential battery with no inverter of its own: it works together with a Huawei SUN2000 or SUN5000 inverter and doesn't generate AC current on its own.
The second battery module works with its own energy optimizer, so the pair's capacity stays close to the rated figure instead of dropping from the imbalance between the two; there's still room for a third module, if more is needed down the line. It charges from solar and, when needed, from the grid, and withstands -20°C to +55°C, even installed outdoors.
The FusionSolar app guides commissioning even without a stable internet connection on site, though the connection then needs to stay up over time for the extended part of the warranty.
midpoint of the estimated range — on nominal capacity; on usable capacity it is 579,71 €/kWh
| Parameter | Value | Source |
|---|---|---|
| Dimensions | 59 × 25.5 × 87 cm (23.2 × 10.0 × 34.3 in) | manufacturer website |
| Weight | 148.0 kg (326.3 lb) | manufacturer website |
| Usable capacity | 13.8 kWh | Declared by the brand |
| Nominal capacity | 13.8 kWh | Declared by the brand |
| Depth of discharge | 100 % | Declared by the brand |
| Cell chemistry | LFP (lithium iron phosphate) | Declared by the brand |
| Expandable | Yes | Declared by the brand |
| Declared compatible inverters | Solo inverter Huawei — SUN2000-2/3/3.68/4/4.6/5/6KTL-L1, SUN2000-3/3.68/4/4.6/5/6K-LB0, SUN2000-8/10K-LC0, SUN2000-3/4/5/6/8/10KTL-M1, SUN2000-5/6/8/10/12K-MAP0, SUN2000-12/15/17/20/25K-MB0, SUN5000-3/6K-LB0, SUN5000-8/12K-MAP0, SUN5000-17/25K-MB0 | Declared by the brand |
| Maximum charge power | 7 kW | Declared by the brand |
| Grid charging | Yes | Declared by the brand |
| Rated cycles | 5000 cicli | Declared by the brand |
| Capacity at end of cycle life | 80 % | Declared by the brand |
| Warranty | 5 anni | Declared by the brand |
| Guaranteed throughput | 28.84 MWh | Declared by the brand |
| Guaranteed remaining capacity | 60 % | Declared by the brand |
| Ingress protection | IP66 | Declared by the brand |
| Mounting | Floor standing | Declared by the brand |
| Minimum temperature | -20 °C | Declared by the brand |
| Maximum temperature | 55 °C | Declared by the brand |
| Noise level | 29 dB | Declared by the brand |
| Works without internet | With limitations | Declared by the brand |
| App required for setup | Yes | Declared by the brand |
| Declared standards | CE, UN 38.3, IEC 62619 | Declared by the brand |
| Cell supplier | — | Not declared |
| Maximum expanded capacity | — | Not declared |
| Battery voltage | — | Not declared |
| Continuous output | — | Not applicable |
| Phases | — | Not applicable |
| Backup power | — | Not applicable |
| Backup phases | — | Not applicable |
| Switchover time | — | Not applicable |
| Black start | — | Not applicable |
| Dynamic tariffs | — | Not declared |
| EV charger integration | — | Not declared |
| Heat pump integration | — | Not declared |
| Virtual power plant | — | Not declared |
| Round-trip efficiency | — | Not declared |
| Standby consumption | — | Not declared |
| Cell heating | — | Not declared |
| Local control | — | Not applicable |
| Open protocols | — | Not applicable |
| Home Assistant integration | — | Not applicable |
| Where the data is hosted | — | Not declared |
| Remote updates | — | Not declared |
| Battery passport | — | Not declared |
| Carbon footprint | — | Not declared |
| Recycled content | — | Not declared |
| Grid connection power | — | Not applicable |
| Official list price | — | Not declared |
A manual or a datasheet counts as a source even when the original file is hosted elsewhere: what matters is the document, not the server. Where that happens, it is stated above.
These numbers are calculated, not stated: they have no source to cite, they have a formula you can redo. The price used is the manufacturer's list price, which is stable and the same in every country — not a shop's price on the day.
