SigenStor,
built to grow with you.
A modular battery system, sized to your home and expandable any time, all run from the mySigen app.
Start small, add more later
About 6kWh and 9kWh modules, up to six per tower.
Five products in one
Solar and battery inverters, battery, energy management and optional DC EV charging.
Works around your tariff
Charges and discharges around your usage, the weather and your tariff.
Backup in a power cut
With a Sigen Gateway fitted, the circuits we agree with you switch to battery without a break.
5 in one.
SigenStor stacks a solar inverter, a battery inverter, battery modules, an AI-powered energy management system and an optional DC EV charger into a single slim tower: one clean unit instead of a wall of boxes, built to grow.
- AI-driven optimisation. Learns your usage, the weather forecast and your tariff to charge and discharge at the smartest times
- Hybrid inverter range to suit every roof and consumption profile, single or three-phase
- Safety first. LFP battery chemistry with five layers of battery protection
IP66 rated
Rated IP66, indoors or out.
The SigenStor tower is rated IP66: sealed against dust and protected against powerful jets of water. So an external wall suits it as well as a garage or utility room. We agree the position with you at design stage.
- IP66 rated: dust-tight and protected against powerful water jets
- Indoor or outdoor installation, including external walls
- Grows in place: extra modules stack on the same tower
Control it from the mySigen app.
A live energy-flow diagram of your whole system: solar, battery, home, grid and car. Deep controls for the people who want them, AI automation for those who don't.
- AI mode optimises charging around the weather and your tariff
- Dynamic tariffs supported natively: buy when prices dip, hold for peak hours
- EV charging scheduled in the same app when the DC module is fitted
mySigen app: the pros and cons.
What it does brilliantly
- Exceptional detail: per-module battery data, live power flows and rich history
- Granular manual control alongside an AI mode that optimises around weather and tariff prices
- A strong fit for agile and time-of-use pricing
Worth knowing
- More features means more to learn. Busier than Tesla's minimalist app
- Sigenergy is a newer brand, founded by ex-Huawei energy leadership. A shorter track record than Tesla, albeit with rapid adoption
- Vehicle integration needs the Sigen charger hardware
Start small, stack more later.
You don't have to over-buy on day one. Start with what you need and stack another module later, or add a second tower for a bigger home.
Expanding SigenStor
- Battery modules About 6kWh or 9kWh
- Per tower Up to 6 modules, about 54kWh
- More towers Two in parallel, with the Sigen Gateway SP-F
Specifications are indicative; exact figures are confirmed in your tailored Powergy proposal.
Power in a power cut.
Backup needs a Sigen Gateway. When the grid drops, it moves the circuits it backs up onto battery power without a break, as long as they draw no more than the system can supply, so most homes won't notice. Which circuits stay on depends on how your system is designed, and we agree that with you before installation.
- No-break switchover: Sigenergy rates it at 0 ms when the backup load is within the system's rating
- Configurable reserve, managed manually or by the AI around weather and tariffs
- Unlocks parallel towers: run multiple SigenStor units as one larger system
Sigen Gateway SP-F
- Role Grid isolation, metering & control
- Switchover 0 ms, within the system's rated load
- Backup coverage Whole home or selected circuits, by design
- Battery expansion Parallel SigenStor towers
- Metering Whole-home, live in mySigen
- Installation At the incoming supply, indoor or outdoor
- Warranty 5 years
Specifications are indicative; exact figures are confirmed in your tailored Powergy proposal.
Click to view the inside of the Gateway
Full specifications.
SigenStor
- Battery modules About 6kWh or 9kWh (5.84 or 8.76kWh usable)
- Capacity per tower Up to 6 modules, about 54kWh
- Design 5-in-1 integrated tower
- Protection IP66: dust-tight and protected against powerful water jets
- Chemistry LFP (lithium iron phosphate)
- EV charging EV AC or EV DC
- Phases Single & three-phase options
- Product warranty 10 years (Sigenergy, extendable to 15 years)
Specifications are indicative; exact figures are confirmed in your tailored Powergy proposal.
Works with
- EV charging EV DC module up to 25kW, or Sigen EV AC
- Smart tariffs Dynamic and time-of-use, built into the EMS
- Gateway Smart Port Runs one large load, such as a heat pump, from solar surplus, battery or grid, or connects a backup generator
- Home Assistant Community integration over local Modbus
- Future-ready Firmware-updatable, virtual-power-plant capable
SigenStor questions, answered.
How much battery capacity should I start with?
It depends on your consumption and tariff. We size every system from your actual usage data.
Do I need the Sigen Gateway?
For backup during power cuts, or to run multiple battery towers in parallel, yes. For bill-saving solar storage alone, the core SigenStor tower is enough.
Is the DC EV charger worth it over a normal home charger?
If you drive a lot, yes. Up to 25kW DC is several times faster than a 7.4kW AC charger, and it can draw directly from solar and battery. If you only top up overnight, the AC option may be all you need. We'll model both against your mileage.
Is a newer brand a risk?
A fair question. Sigenergy has scaled globally at remarkable speed with strong engineering pedigree, and products carry a 10 year warranty (extendable to 15 years).
Read the guide.
Your system in the app: Tesla and mySigen
What the Tesla app and mySigen show you, the settings worth knowing, and what we set up with you at handover.
4 min read Battery StoragePowerwall 3 vs SigenStor: how to actually choose
We install both. Here's the decision framework we use with real customers, not a spec sheet shootout.
6 min read Battery StorageAdding a battery to solar you already have
How a battery joins an existing system, what we check first, and what it means for the Feed-in Tariff, paperwork and VAT.
5 min readA SigenStor system, designed for your home.
Free, no-obligation design and quote from a Sigenergy Gold Installer.
Start my home energy design