Off-grid Hybrid Energy Storage System with SUNSYNK 10kW 48V Inverter, Dyness 30.7kWh LFP Battery, and (optionally) 12.8kW Solar Panels and Senci 12kW Petrol Inverter Generator

    
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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 a

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.

Hybrid energy storage system

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 10kW 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 10kW 48V SINGLE PHASE CLASSIC INVERTER delivers 10.0kW 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 10kW 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. Two modules in parallel give 20.48kWh of usable storage, with around 98% charge/discharge efficiency and plug‑and‑play installation.
  • LONGI  535W HI-MO X10 Scientist HPBC 2.0 Black Frame MC4-EVO2 captures up to 12.84kW 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 Longi 535W 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).

LONGI  535W HI-MO X10 Scientist HPBC 2.0 Black Frame MC4-EVO2

Rated (peak) power (Wp): 535W at 1000 W/m²
Open‑circuit voltage (Voc): 45.05 V
Voltage at maximum power (Vmp): 37.27 V
Short‑circuit current (Isc): 15.00 A
Current at maximum power (Imp): 14.38 A
Efficiency: 23.7%
Cell type: Monocrystalline silicon
Connector type: MC4-EVO2
Certification: IEC 61215 / IEC 61730 / IEC TS 63209 / IEC TS 63342 / TÜV Rheinland
Net weight: 28 kg
Size: 1990 X 1134 X 30mm

DYNESS PowerBox G2 10.24kWh Lithium Battery

Battery type: LiFePO₄
Nominal capacity: 10.24 kWh
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 10kW (SUN‑10K‑SG05LP1) Off‑grid/Hybrid Inverter

Battery
Battery Type: Lithium-Ion / AGM Lead-acid
Battery Voltage: 40–60V
Max. Charge/Discharge Current: 250A
Battery Discharge Power: 10,000W
Solar input
Max. solar power (Wp): 13.0 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: 10000W
Max. AC Input/Output Apparent Power: 11000VA
Rated Input Current: 45.5A / 43.5A
Max. Input Current: 50.0A / 47.9A
AC output
Rated output power: 10.0 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: 50.0A / 47.9A
Rated Output Current: 45.5A / 43.5A
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 range: -45 ~ 60°C, >45°C Derating
Ingress protection: IP65
Cooling: Natural convection
Communication: RS485, CAN
FENCI 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 10kW SUN‑10K‑SG02LP1 Off‑grid/Hybrid Inverter;
  • 2× 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) 24× LONGI  535W HI-MO X10 Scientist HPBC 2.0 Black Frame MC4-EVO2 Solar Panels (efficiency 23.7%);
  • (Optional) Senci SC15000i 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.