The 120kw solar energy system is suitable for area such as remote sea island, resort, farm where there is no public electricity or public electricity is not stable. It will be perfect solution to supply power to the loads and decrease the electricity bill and fuel bill.
Inverter power: 120kW power frequency inverter
AC output voltage: three phase AC208V or AC380V
Battery voltage: DC360V
Battery type: Gel battery or LiFePO4 battery
Solar panel type: Mono or poly
120kW solar off grid system configuration for reference
| No | Item | Specification | Quantity | Remark | |
| 1 | mono | 400W | 225 | grade A cells,15pcs in one string and 15strings in paralle1 | |
| 2 | Solar panel bracket | C-shaped steel | 1 | Ground type | |
| 3 | PV combiner box | 5 inputs, 1 output | 3 | waterproof, lightning protection, with DC breaker and fuse | |
| 4 | MPPT charging controller | 360V/80A | 3 | ||
| 5 | Off grid inverter three phase | Pure sine wave, 120KW/360V | 1 | power frequency inverter；output:380VAC/50HZ ；(each phase can run 100% unbalanced loads with 220V50HZ output, the maximum load capacity for each phase is 40KW) | |
| 6 | Gel battery (deep cycle) | 2V1200AH | 180 | 180pcs 2v1200ah in one string, including cables and battery rack | |
| 7 | accessories | Battery distribution box(with MCCB breaker) | 1 | It is for DC part | |
| MC4 connector | 10 | ||||
| PV cables(solar panel to PV combiner box) | 4mm2 | 500 | |||
| BVR cables(PV combiner box to MPPT controller) | 16mm2 | 150 | |||
| BVR cables(battery to distribution box) | 50mm2*2 | 20 | |||
| BVR cables(inverter to distribution box) | 50mm2*2 | 20 | |||
| BVR cables (MPPT controller to distribution box) | 25mm2 | 60 | |||
Main components introduction
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mono or poly solar panels, grade A cells, with excellent low irradiance performance and excellet PID resistance |
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mounting structure for solar panels, gavalnized steel or aluminum alloy, roof type or ground type. It can be designed based on your needs |
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PV combiner box, 6 inputs, 1 output, with DC breaker, SPD and fuse. 1000V, IP65 protectiong grade |
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360V80A mppt solar charge controller, 1PV port, maximum pv input power 34kW. Wide PV input range: 380V-750V. MPPT tracking efficiency can reach up to 99.9%. IGBT module design, suitable for both gel battery and lithium-ion battery. |
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120kW power frequency inverter with transformer inside, stable output, 92% high efficiency, suitable for all kinds of inductive loads. Output voltage can be three phase 380V or three phase 208V. |
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2V1200AH gel battery, ABS outshell, low internal resistance, long cycle lifespan, low self discharge rate, wide operation temperature range |
How to choose one suitable solar off grid system?
1, confirm the inverter voltage and inverter power based on your loads
2, confirm if the system is totally off grid or with grid/generator as backup
3, confirm solar panel power based on your daily load conumption and solar irradiance figure
4, confirm battery type and battery backup hours
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