Off-grid Hybrid Energy Storage System with SUNSYNK 12kW 48V Inverter, Dyness 30.7kWh LFP Battery, and (optionally) 16.99kW Solar Panels and Senci 12kW Petrol Inverter Generator
Off‑grid Hybrid Energy Storage System
The Off‑grid Hybrid Energy Storage System (Off‑grid Hybrid ESS) is a straightforward way to boost your energy independence. It includes
- Sunsynk 12kW 48V Single Phase Classic Off-grid Hybrid Inveter with WiFi, 3x Dyness PowerBox G2 10.24kWh Lithium Battery, and (Optional) 33× DMEGC 515W N-Type Bifacial Double Glass All Black Solar Panels (custom quantities of solar panels and batteries are available on request), and Senci SC15000i 12W Petrol Inverter Generator. A basic set of cables is included to make installation easier.
Solar panels, mounted on the roof or on the ground, capture sunlight and generate direct current to charge the battery. The hybrid inverter then converts that stored energy into alternating current for use in homes or small businesses. The Off‑grid Hybrid ESS manages any surplus energy by storing it in the battery or, where allowed, feeding it into the grid.

Home energy storage lets you use the electricity you generate when you need it most. The battery bank stores renewable energy from solar photovoltaic (PV) panels or a wind turbine. For example, power generated during the day can be stored and used in the evening for tasks such as boiling the kettle or running electronic devices.
You can tailor the Off‑grid Hybrid ESS to your situation, taking into account your current energy use, the size of any existing generation equipment, and future plans such as getting an electric vehicle (EV) or installing a heat pump for heating.
The system must be installed by a licensed electrician or technician in compliance with all applicable regulations and guidance. For residential properties, guidance here must be followed.
Do you need installation service for your off‑grid kit? We can arrange it. Just contact us on info@energian.co.uk or 020 8064 0335 for a tailored quote.
- SUNSYNK 12kW 48V SINGLE PHASE CLASSIC INVERTER with WIFI included combines a solar inverter and a battery inverter in one unit, so it can manage power from your solar panels, battery, and the grid at the same time. It suits both on‑grid and off‑grid storage setups.
- SUNSYNK 12kW 48V SINGLE PHASE CLASSIC INVERTER delivers 12.0kW in on‑grid mode and back‑up power in off‑grid mode, with 24‑hour energy management and real‑time monitoring of your PV system.
- SUNSYNK 12kW 48V SINGLE PHASE CLASSIC INVERTER – Uninterruptible power supply switches to the battery in less than 10ms if the grid fails. The inverter’s EMS function improves battery reliability, and remote control and software updates let you manage the system digitally.
- DYNESS PowerBox G2 10.24kWh LV LFP Battery is rated for more than 6000 cycles at 80% depth of discharge. Three modules in parallel give 30.7 kWh of usable storage, with around 98% charge/discharge efficiency and plug‑and‑play installation.
- DMEGC 515W N-Type Bifacial Double Glass All Black Solar Panels captures up to 10.3kW DC and converts it to AC for immediate use in the home or business, with surplus energy stored in the battery or, where allowed, fed into the grid.
- Durable, dust‑ and water‑resistant solar panels – The DMEGC 515W panel is dust‑ and water‑resistant so it can cope with most weather. An anti‑reflective and anti‑soiling surface helps reduce power loss from dirt and dust. It comes with a 25‑year product warranty and a 30‑year linear power‑output warranty.
- Delivery – 4–5 working days within the UK (longer to the Highlands, islands and Northern Ireland).
DMEGC 515W Mono All Black MC4-EVO2A Solar Panel
| Rated (peak) power (Wp): 515W at 1000 W/m² |
| Open‑circuit voltage (Voc): 37.33 V |
| Voltage at maximum power (Vmp): 31.05 V |
| Short‑circuit current (Isc): 17.25 A |
| Current at maximum power (Imp): 16.59 A |
| Efficiency: 22.9% |
| Cell type: Monocrystalline silicon |
| Connector type: MC4-EVO2A |
| Certification: IEC 61215 / IEC 61730 / IEC TS 63209 / IEC TS 63342 / TÜV Rheinland |
| Net weight: 27.1 kg |
| Size: 1977 x 1134 x 30 mm |
DYNESS PowerBox G2 10.24kWh Lithium Battery
| Battery type: LiFePO₄ |
| Nominal capacity: 10.24kWh |
| Nominal voltage: 51.2 V |
| Max. charge/discharge current: 100 A / 100 A |
| Depth of discharge: 95% |
| Cycle life: >6000 cycles at 25°C, 80% DOD |
| Installation location: Indoor or outdoor |
| Operating temperature range: Charge −20°C to +55°C (with heating); discharge −20°C to +55°C |
| Ingress protection: IP65 |
| Net weight: 96 kg |
| Size: 710*165*640 mm |
Sunsynk 12kW Off-grid Hybrid Single Phase Inverter
| Battery |
| Battery Type: Lithium-Ion / AGM Lead-acid |
| Battery Voltage: 40–60V |
| Max. Charge/Discharge Current: 250A |
| Battery Discharge Power: 12,000W |
| Solar input |
| Max. solar power (Wp): 15.6 kW |
| Max. Voc: 500 V |
| Start‑up voltage: 125 V |
| MPPT voltage range: 150–425 V |
| Max. input current: 26 A / 26 A /26 A |
| No. of Independent MPPT Trackers: 3 |
| MPPT number / Max. input string number: 2 + 2 + 2 |
| AC INPUT |
| Rated AC Input/Output Active Power: 12000W |
| Max. AC Input/Output Apparent Power: 13200VA |
| Rated Input Current: 54.6A / 52.2A |
| Max. Input Current: 60.0A / 57.4A |
| AC output |
| Rated output power: 12.0 kW |
| Back‑up switch time: 10 ms |
| Operation phase: 1/N/PE |
| Rated output voltage: 220–230 V AC |
| Rated frequency: 50 Hz |
| Max. Output Current: 60.0A / 57.4A |
| Rated Output Current: 54.6A / 52.25A |
| Power factor: >0.99 (0.8 leading – 0.8 lagging) |
| THDv (linear load): <3% |
| Efficiency |
| Max. efficiency: >97.6% |
| MPPT efficiency: >96.5% |
| General data |
| Dimensions: 420 × 670 × 233mm |
| Weight: 36 kg |
| Operating Temperature: -40 ~ 60°C, >45°C Derating |
| Ingress protection: IP65 |
| Cooling: Natural convection |
| Communication: RS485, CAN |
| SENCI SC15000i 12000W Petrol Inverter Generator |
| Max. power: 13000 W |
| Continuous power: 12000 W |
| Min. fuel consumption: 7.2L/hour |
| Phase: Single |
| Voltage and current: 240 V AC, 13 A, 50 Hz |
| Sockets: 1 x 63A 230V, 2 x 32A 230V, 1 x 12V 8A DC, 1 x 5V USB |
| Engine type: 4‑stroke, forced air‑cooled |
| Engine size: 744cm³ |
| Fuel: Petrol |
| Petrol fuel capacity: 40 L |
| Engine oil: 10W‑30 / 10W‑40 / 15W‑30 / 15W‑40 |
| Noise level @ 7 m: 75 dB(A) on low idle |
| Net weight: 170 kg |
|
Fully assembled dimensions (H x W x L): 800 x 870 x 940mm |
- 1× Sunsynk 12kW SUN‑12K‑SG02LP1‑EU Off‑grid/Hybrid Inverter;
- 3× Dyness PowerBox G2 LiFePO₄ Battery 10.24 kWh, rated for >6000 cycles;
- 1× Complete set of cables, MC4 connectors, fuses, fuse holders, circuit breakers and terminal lugs;
- (Optional) 33× DMEGC 515W Mono MC4-EVO2A Solar Panels (efficiency 22.9%);
- (Optional) Senci SC10000i 12kW Petrol Inverter Generator.
Shipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If a shipping rate is not shown at checkout, contact us on +44 20 8064 0335 or info@energian.co.uk for a quote.
Any questions? Please call us on 020 8064 0335, WhatsApp 07418 607250, or email info@energian.co.uk.
