Description
This is a serious-capacity hybrid storage package for properties on a three-phase incoming supply: large homes, farms, light commercial sites, or anywhere with heavier loads than a single-phase system can comfortably cover. The Solis 10/15kW three-phase hybrid handles solar, battery, grid and backup in one unit, and supports up to six Fogstar Energy 16.1kWh ECO batteries on a single inverter for a total of 96.6kWh of usable storage.
The S6 three-phase platform brings dual backup ports for critical and non-critical load separation, generator integration for extended outage protection, and microgrid capability when paralleled, all of which makes it a strong fit for sites where reliability and resilience matter as much as tariff savings.
Solis S6 10 / 15kW Three-Phase Hybrid PLUS Inverter, key features:
- Three-phase low-voltage hybrid, sized 10kW or 15kW
- AI-optimised cloud-based energy management assistant
- Dual backup ports for intelligent separation of critical and non-critical loads
- Generator compatibility for extended backup duration
- 200% overload capability for up to 10 seconds to handle high inrush loads
- Stable operation during weak grid or generator fluctuations
- Up to 20A maximum PV input current, compatible with high-current panels from all major manufacturers
- Battery DC charge / discharge up to 290A for high-power energy cycling
- Multi-inverter microgrid capability for scalable installations
- Supports unbalanced and half-wave loads on grid and backup ports
- Increased self-consumption of solar energy through intelligent charge / discharge scheduling
Fogstar Energy 48V 16.1kWh ECO Battery (2026 Edition), key features:
- Grade A LiFePO₄ cells, 3.2V 314Ah, 1P16S configuration
- 8,000 cycles at 80% Depth of Discharge for long service life
- Integrated, heat-activated aerosol fire suppression system as standard
- Built-in battery heating allowing safe charging down to -10°C, ideal for UK garages, outbuildings and unheated plant rooms
- Seplos 200A BMS with JK 2A active cell balancer
- Scalable: connect up to six units on this listing for 96.6kWh of usable storage on a single inverter
- Pre-loaded comms profiles for Solis, Victron, Pylontech, Growatt, Sofar and Goodwe
- CAN and RS485 communication included
- LCD touchscreen for live system data and diagnostics
- Fully assembled, plug-and-play unit, no DIY cell-stacking required
What you get with this package:
- Solis S6 three-phase hybrid PLUS inverter in your chosen size (10kW or 15kW)
- Fogstar Energy ECO 16.1kWh battery, 1 to 6 units depending on the variant chosen
- Three-phase grid meter for live energy monitoring
- Full design, supply and installation by our MCS-accredited engineers
- DNO application and G99 / G100 paperwork handled for you
- All cabling, isolators, mounting and commissioning included
- Handover walk-through and app setup on the day
- Installation anywhere in the Midlands included in the price
Why people choose this kit:
- Up to 96.6kWh of usable storage on a single inverter, more than enough for a large home, farm or commercial site running heat pumps, EV charging and three-phase machinery.
- Three-phase architecture means balanced loading across all phases, which keeps voltages cleaner and protects sensitive equipment.
- Dual backup ports let you prioritise critical circuits (lighting, fridge, internet, alarm) over non-critical ones (EV charger, immersion) during a power cut.
- Generator port and microgrid support give genuine off-grid and resilience options.
- AI optimisation learns your usage and your tariff so the system runs itself after the first week.
- Fire suppression and -10°C charging come as standard on the 2026 Fogstar ECO, peace of mind for garage and outbuilding installs.
- Lithium iron phosphate (LFP) chemistry is safer and longer-cycling than older NMC packs.
What’s included in the install:
- Site survey and electrical assessment, including three-phase supply check
- Wall or floor mounting of the inverter and batteries
- AC, DC and comms wiring to your three-phase consumer unit
- Grid metering for live energy monitoring
- System commissioning and app pairing
- Customer handover and aftercare contact
Coverage: Midlands installation included in the price.
Note: This kit requires a three-phase incoming supply at the property. If your home or site is currently single-phase, your DNO will need to upgrade your service before installation. We will flag this during the site survey.
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